Shannon, thank you. I am a math teacher, and one of the most annoying question kids ask is " But when will I ever use this?" This video (with your permission) will become an excellent response. You did well with the explanation. I watch your videos in the hopes that one day I can do at least some of the work when I build my next home. I feel they are all well done. You are a natural teacher.
I own a small contracting business in Upstate New York and I can't tell you how many times I've watched your videos. I'm only now realizing I haven't been subscribed to your channel! You're a fantastic teacher and I genuinely appreciate you taking time out of your busy schedule to educate us. Thank you!
Absolutely the best woodworking advice on UA-cam. I am a big fan of your videos and can't thank you enough for the teachings. Now time to go measure some rafters...
No worries at all! My Shed Plans brings me up to speed with professional tips and tricks used by the pros [Go Here=> *WoodBlueprints. Com* ]. It really let me learn how to handle carpenter equipment, follow the right safety rules, and how to do yo.ur projects professionally so that they will look good and last!
Thank you for the videos. 8 yrs ago @35yrs old i moved from the city to the country & began restoring our collection of old historic homes.. your videos have made my life so easy.. I just used this video to build myself an outdoor garden room. Thanks for sharing your wisdom.
When I saw the piece of paper laying out the math process, my heart dropped (this from a c-/d+ student in algebra/geometry). But, by damn, you explained it so well even I understood it! Kudos! Think it was the first time I ever saw how math on paper fits in the real world.
Excellent. Once upon a time, in my late 20s, I worked as a carpenter with some good carpenter ’s for two or three years. Your videos have brought a smile as I remember the carpenter who taught me. You are a good teacher and explain things very well. Thanks for a good memory.
Thanks Shannon. You are one of the few video instructors that I like listening to. Many never get to the point and they waste my time. You are to the point and a good teacher, easy to follow.
Great video! Calm, cool and precise in how you explain things to us novices. Keep them coming! When I build my deck, I'll be sure and review the quality tutorials you've taken the time to post.
thanks for al the great vidz Shannon. I lost my house and was lucky enough to move into my grand parents garage where ive been able to turn it into a stand alone house with a separate room and restroom along with a kitchen. everything from drain lines to pex supply lines even studs and dry wall. Woulnt have been able to do it without your vidz. They are the absolute best you can find with all the information you'll need. thanks again.
I checked your website for the roof calculator and link took me to a hip roof/complex roof calculator that didn't work. If anyone goes to that site, search for Gable roof calculator. It works GREAT. By far the best calculator I've seen online or even in iOS app. Great graphics and very sensible. Cut my rafters and they just worked. perfect fit. And Shannon, you are a god send. So matter of fact, easy going, great information. No hype no issues and it all makes sense. You're responsible for a lot of DIYers gaining competence in the field. Thank you.
I agree with the last commenter: VERY helpful, and not confusion at all! Thank you for taking the time to post your instructional videos.....I can learn so easily from them!
Seems good so far! Was easy to talk to about his My Shed Plans [Go Here=> *WoodBlueprints. Com* ]. Guided me in the right direction & helped me understand everything & in the end it was what I wanted
Love the geometry. Don't apologize for teaching the right way to do things dude. If people don't want to learn it, they'll find another video that suits them. Thanks for a great video!
Man I'm a 3rd generation carpenter. I know own my own business carrying out the legacy. And I must say your a great teacher. I'm just watching the video for fun. But I like the way your showing ppl who don't know and weren't born Into this like I was. I love construction. It's fed my family for years. At least 40 yrs
love this Video and presentation. Yep, hard to describe how this all works in a video, but you and crew do a great job on a difficult subject. thank you so much!
Awesome!! Tnx for using the right words so everyone can understand. I'm an Spanish speaking person and love the way you guide people step by step. Thumbs up!!
Good teacher. I was taught this at collage back in 1990 and to be honest Ive forgot it. I usually build a pair rafters on the floor and strap them together. To be offered up to see if they fit...This is done by cutting the plumb cut on the top of both rafters. If it's not known what pitch then just overlap the tops and bisect. A length of timber acts as the wall plate to mark the birds mouths. A third the width up from bottom of rafter width. The rise is determined by cutting both plum cuts first and joining the rafters together. We don't deduct the ridge thickness until the strapped rafters are offered up and it fits perfectly. Then it's dismantled and ridge deducted. Thanks for taking the time to expand. Greetings from the UK🇬🇧
Here is where I'm confused, if you cut the ridge angle and the birds mouth angle the same, when you drop the rafter into place the ridge is dropping down the hight of the board but the birds mouth only 2". Doesn't this throw off the angle of the board meeting the ridge?? Hope that makes sense.
This guy sucks at explanation of how this is done. The Math he used isn t needed to do this and mainly used to order the materials u need for the job..
To be quite frank.....this is the only truss video I was able to learn how to do this. I now feel comfortable making my own trusses for my shed now. Thanks for the video.....it works.
The more times I watch this, the clearer it becomes. I've seen several different videos on rafter layout, and all are very similar except for small differences in their methods. You are a good teacher.
I really appreciate this video, demonstrating the precise way to get exact and correct rafters, wether using a ridge board or building the truss and raising it. Knowing the mathmatics involved is a huge help, this will always work on first try if you do the math correctly. Knowing the "right way" to do it is never "over the top!"
Cheers for this, I've been looking for "what is the maximum span for a 2x6 rafter?" for a while now, and I think this has helped. Have you ever come across - Beybigail Nonpareil Breakthrough - (do a google search ) ? It is a great one off guide for discovering how to create better sheds and improve your woodworking minus the hard work. Ive heard some interesting things about it and my friend got great success with it.
No worries at all! My Shed Plans brings me up to speed with professional tips and tricks used by the pros [Go Here=> *WoodBlueprints. Com* ]. It really let me learn how to handle carpenter equipment, follow the right safety rules, and how to do yo.ur projects professionally so that they will look good and last!
Great video. The reason why is the math lesson was the best I've ever seen demonstrated. I used my numbers with a different slope and size and still had no problem figuring out my rafters. I don't think a math teacher could have done better.
how awesome it is to see somebody using pen/pencil and paper, instead of a project calculator......the old school way of doing it....cool....I'm a grunt for a framer, and he is also pencil/paper type guy......he does some neat stuff, and we have done some great jobs/re-model historic buildings.....just finished up one in Philipsburg, Montana........opens in early/mid January 2016.....enjoying the holidays off, watching youtube videos trying to gets more smarter.....:)......thanks for your time, sir.....
Just want to point out, being an ophtalmologist, that you did not use your protective eyeglasses for most of the time. My advice to everyone is, do not neglect this. You could loose an eye; I have seen it happen many times in my professional career. And thanks for your great instructional videos.
I use to be a Paramedic for a hospital based EMS service. A rural hospital sent us a patient who had a roofing mishap... a nail from a pneumatic gun missed the stud,...this guy was below. The nail was sitting in his brain, behind the eyes.....I will never forget the x-ray. Conscious, alert,sedated and nervous as hell....
At about 19:35 - THANK YOU!!!!! You are literally the ONLY person on UA-cam who explained that the ridgeboard is going to be HIGHER than the initial measurement when cutting a birds mouth. i followed so many instructions that explained how to measure the distance and cut the seat cut, but it was too high for the ridgeboard and I couldn't figure out why. i went back to the geometry and realized that they were all leaving out the fact that you are actually, essentially, raising the rafter board (the hypotenuse) when you cut the birds mouth to have it sit there, so you also have to raise the ridgeboard by the same amount. I wish i had not spent an entire day making cuts and wasting boards trying to make it fit the initial triangle height in the first calculation! :( Anyway, YOU'RE THE BEST! Thanks for confirming what i eventually figured out. (i thought there's no way that could be right, since no one is mentioning it...but it turns everything i read/watched just failed to mention that the actual ridgeboard height is different with a seat cut involved.
Before 19.35 I was thinking that the seat cut was going to cause the rafter to not butt up against the ridge board flush. Good explanation. The ridge board height should be the height of the triangle plus the angled width of the rafter where the seat cut is located. Confusing but makes sense.
Excellent video ignore the haters they just jealous they living on food stamps a dss your obviously in employment. ITS A SHED!!! Not an extension or as you call it over the pond an addition brilliant vid mate keep it up I'm gonna apply your methods when I build my shed
My man cave is now completed, and it's thanks to you and your video instruction on building a shed. You give me the confidence, to take the plunge and build my own shed. Many thanks again.
Hi Shannon! Thank you for making the details of how to mark and cut the roof rafters very simple to understand. You have explained the math very clearly! I have enjoyed following the progress of the shed construction. All your videos are very useful and informative. Thanks a lot! Kevin
The calculations and explanations are excellent. This is the best explained rafter video that I have seen so far. I wanted the math rather than just the calculator. Thank you.
I'm building a 28x40 foot log cabin, I'm not a builder of any means but I havn't done too bad up to now. My complete knowledge of house-building came from books and You-Tube videos.... I guess I've seen about 500 videos and although you shed is only a few square meters, the principles are the same! You have the best video I have seen on roof building!!! Now I'm going to check out the rest of your video's. Thanks for the info
Hi! I appreciate the thoroughness of the video! One Question: Why is "1/2 of the ridge board thickness for the total rafter length @ top end" 13/16"? Why isn't it 3/4"? If a 2x4 is 1.5" wide then 1/2 of the width of a 2x4 should be .75. Or am I missing something?
Elaine McGrath The deduction is made on the 6/12 angle through half of the ridge board. In this case it does not make much difference (1/16") but on some slopes it can.
HouseImprovements I am building a tiny house on wheels with a 12/12 roof. Would 1/2 my ridge board, assuming a 2x6, be 3/4"? Your video perfectly explained how to do my birdsmouth. Thank you for that. You made a confusing concept make total sense to me!
HouseImprovements I'm still not sure where the 13/16" came from. Can you go into more detail on how you came up with that number? I am with Elaine on this one. Shouldn't it be 12/16"?
Brandon Maharrey The ridge board is 1.5". Half of that is 0.75". 13/16 is the hypotenuse of a triangle with legs .75" and .75*Slope. In our case the Slope is .5, so sqrt(.75^2+(.75*.5)^2) = 0.77 = 13/16. Based on the video, I made a google spreadsheet which can handle different roof pitches. Anybody with a google account can make their own copy and modify as needed: docs.google.com/spreadsheets/d/15fm1Yxfd0nw2RWV3P6mZyoOqbtlhGsNZgvabmb3TnRw/edit?usp=sharing
Brandon Maharrey Thanks for your illustration explaining the mysterious 13/16" backoff! And thanks for correcting my math error! As shown in your illustration: sqrt(.75^2+(.75*.5)^2) = 0.84 = 13/16
Fantastic seeing trigonometry & measurement in these videos; math observed not just in theory, but applied alongside real world examples. It's been a great tutorial.
Wish I would have seen this 2 years ago when a built a roof over my deck. It was my first build and it took hours to get the roof angles down for cuts. I had now idea a square could be used like that. Thanks Shannon.
I'm going to show you exactly how to start building wooden sheds and woodwork projects easily, so that you're fully up and running, creating remarkable outdoor garden sheds and woodwork projects for your loved ones within days from now. Click here ==> NewShedPlans31.blogspot.com
Nice job -- good explanation. The math that you used in this video is something that we all (should have) learned in grade 9. You really shouldn't feel the need to apologize for doing stuff the right way.
This is more about how you would frame a roof then just building trusses plus you gain some headroom with these rafters instead of trusses with a bottom cord. Thanks for the comment though.
I was researching hard for this. Just now you showed me what took me years to find and understand. I now have ideas as to how roof calculations are done. Thank you so much.
BakyDuffer Rise over run 1/2 one foot "up" for every two feet "in" from the wall. Six feet (width of building), cut in half is three feet (36"), with the chosen rate of rise half of the three feet is a foot and a half....18 inches....
Easier to say for every 12" horizontal the center of your roof will go up 6" . He was using 6 foot as the width of the entire building. So divide the roof into two parts from the center to the double plates on the wall studs which is 36" or 3 foot. 3 x 6 equals 18" of rise at the center of the house where the ridge is.
rigth !!! a 16 who gives a....... about a 16 of an inch , an a perfect world ,when you cutting you migth end of take that 16 off anyways . come on" C RAMOS"
3/4 is the perpendicular measurement from the ridge board; not the angle measurement that aligns with the rafter, on which you are measuring to mark the cut. So 13/16 is correct measurement.
You weren't confusing in the least. Beautifully explained. The math couldn't have been made any clearer. Thank you for demonstrating how to use a framer's square. I am going to build a garden shed in my yard later this spring. Though born and brought up in India which means i think in mm, cm and metres, even I was able to catch on when you reduced the rafter length 13/16ths of an inch to account for half the ridge thickness!!! Thank you very much for this video series.
perfect. exactly what I needed to know to build the rafter. it's one thing to show people you building something, it's completely different when you are showing them exactly how to duplicate it on their own project. I especially appreciated the part about determining the length of the rafters and how to make the end cut and notches in them.
You know when I got that saw I thought I would use it only occasionally but I use it almost all the time. If you are doing a lot of cutting all day a corded saw is still better but I find I use the cordless one a lot!
Not to worry, happens to the best of us ;-) great vid by the way, building a shed soon myself and got some great insight from this series, keep up the good work.
I agree. The best explanation I have ever heard. You say you have to add the depth above the birdsmouth, but I think you have to add the depth of the birdsmouth itself and subtract a little for the top of the ridge board. The splitting of the rafter can be avoided by pre drilling before nailing. A bit like a clearance hole for a screw.
Hey Shannon you are world class at what you do, i have never even attempted building anything or even learned the basics. i was looking to buy prefab shed in uk cost £500 with base, very weak dry horrible shed and only 8x8, and decided to spend £500 on just chop saw, spirit level, tape measure and a load of wood. I watched countless videos on how to build a shed, some were helpful, some were more confusing. Then i found your videos watched them over and over for 1 DAY and have already built my shed frame and half of my roof, doorway with tremor studs and left space for future windows. (progress on my channel anyone) . Thanks for teaching clearly and better than anyone else i came across. Love from Scotland Bro Thanks Darren
do yourself a favour and go metric,we got rid of imperial and watching you stumble with fractions ,i can see why going metric was such a good idea ,greetings from Ireland
HouseImprovements Not sure if that would solve all the math problems, because the lumber still comes in feet and inches (2x4's, etc). How does lumber come in Ireland? Greetings from California, USA.
Your videos helped me build my 16 X 12 shed from the ground up. I learned so much from studying your videos and the shed came out perfect. Thank you and keep up the good work.
Shannon, this is the 83 year old, building a 9x12x 12H Bunky with my son. He works in the construction field and is busy making a living. So, if there are any mistakes, I correct them before he shows up.Things are going well ( with your helpful videos ) and dad looks like a qualified carpenter ( thanks Shannon ). Did everything your instructional videos said to do and we are now installing the rafters. We botched up a few before we got it right ( my fault ). I chose to use 2x6 lumber because of the height and the wind load. Also, anchored 8" dia. post ( 4ft. deep & 8ft. above ground ) at two points at each corner. We can experience some wild winds some times. Sure wish I had a nailer, my arm is paying the price for hammering so many nails. My wife still thinks I'm crazy. Ordered one of your T-shirts. Sent the wrong size But once again, I should have watched the video. We are 65-70% complete, thanks to you. Your help was the catalyst that gave me the confidence to even embark on a project so daunting.
Great videoes. In the process of deciding on buying or building, your videoes give me the confidence I needed bringing back old construction tips that I haven't used in years. Thank you!
Shannon, thank you for all the work you all do showing us how to do things. The timing for the shed because I have to build one in a few weeks. I feel very good that I can do it now. But keep making the You Tubes because I have a few weeks to go and I'll talk myself out of it by then.
Great job explaining Height Above Plate(HAP) and how it fits into ridge placement. This is left out of many books and videos that try to explain the geometry without the HAP, which is a critical dimension.
This guy does a great job and uses common sense approach which is designed to be productive. You on the other hand have nothing better to do than criticize someone who is spending their own time trying to help people.
Shannon, thank you. I am a math teacher, and one of the most annoying question kids ask is " But when will I ever use this?" This video (with your permission) will become an excellent response. You did well with the explanation. I watch your videos in the hopes that one day I can do at least some of the work when I build my next home. I feel they are all well done. You are a natural teacher.
Why no overhang at the ends to began with, so you don't have to add a piece later?
🎉
Well then if the kids are bieng annoying with asking ??? Then you have NO Buisiness bieng a math teacher!
@@roadrunner694Why are you asking him?
@@woodduck614Did you have a stroke writing this?
I have spent 50 years in construction and am now retired. You are the best teacher I have seen in construction.
Thank you Carl
Awesome. First explanation I've ever understood about calculating bird's mouths and how to mark rafters. You're the man, Shanny!
I own a small contracting business in Upstate New York and I can't tell you how many times I've watched your videos. I'm only now realizing I haven't been subscribed to your channel! You're a fantastic teacher and I genuinely appreciate you taking time out of your busy schedule to educate us. Thank you!
Absolutely the best woodworking advice on UA-cam. I am a big fan of your videos and can't thank you enough for the teachings. Now time to go measure some rafters...
Awesome, thank you
I agree
Aircooled Tech o
No worries at all! My Shed Plans brings me up to speed with professional tips and tricks used by the pros [Go Here=> *WoodBlueprints. Com* ]. It really let me learn how to handle carpenter equipment, follow the right safety rules, and how to do yo.ur projects professionally so that they will look good and last!
thoroughly confused now. the more i learn the more i realize i dont know.
Thank you for the videos. 8 yrs ago @35yrs old i moved from the city to the country & began restoring our collection of old historic homes.. your videos have made my life so easy.. I just used this video to build myself an outdoor garden room. Thanks for sharing your wisdom.
Shannon, I just happened upon your shed series and must tell you how instructive and helpful it was! Such clear explanations. Thanks so much,.
When I saw the piece of paper laying out the math process, my heart dropped (this from a c-/d+ student in algebra/geometry). But, by damn, you explained it so well even I understood it! Kudos! Think it was the first time I ever saw how math on paper fits in the real world.
Thank you Shannon.You have the gift of teaching.
God bless you and your loved ones.
thanks
@@HouseImprovements man i love your video's end also i like that Nail gun thanks for the great videos very helpful good job
Excellent. Once upon a time, in my late 20s, I worked as a carpenter with some good carpenter ’s for two or three years. Your videos have brought a smile as I remember the carpenter who taught me. You are a good teacher and explain things very well. Thanks for a good memory.
1
I think I've learned more from Shannon's videos than the 12 years I spent in public school.
Thanks Shannon. You are one of the few video instructors that I like listening to. Many never get to the point and they waste my time. You are to the point and a good teacher, easy to follow.
Great video! Calm, cool and precise in how you explain things to us novices. Keep them coming! When I build my deck, I'll be sure and review the quality tutorials you've taken the time to post.
thanks for al the great vidz Shannon. I lost my house and was lucky enough to move into my grand parents garage where ive been able to turn it into a stand alone house with a separate room and restroom along with a kitchen. everything from drain lines to pex supply lines even studs and dry wall. Woulnt have been able to do it without your vidz. They are the absolute best you can find with all the information you'll need. thanks again.
Really impressive, and thanks for taking out your time to help people, like myself in better learning to build a shed.
I checked your website for the roof calculator and link took me to a hip roof/complex roof calculator that didn't work. If anyone goes to that site, search for Gable roof calculator. It works GREAT. By far the best calculator I've seen online or even in iOS app. Great graphics and very sensible. Cut my rafters and they just worked. perfect fit. And Shannon, you are a god send. So matter of fact, easy going, great information. No hype no issues and it all makes sense. You're responsible for a lot of DIYers gaining competence in the field. Thank you.
I agree with the last commenter: VERY helpful, and not confusion at all! Thank you for taking the time to post your instructional videos.....I can learn so easily from them!
Seems good so far! Was easy to talk to about his My Shed Plans [Go Here=> *WoodBlueprints. Com* ]. Guided me in the right direction & helped me understand everything & in the end it was what I wanted
Love the geometry. Don't apologize for teaching the right way to do things dude. If people don't want to learn it, they'll find another video that suits them. Thanks for a great video!
Thank you, this is the best explanation of this that I have ever heard.
Thanks, Rian.
HouseImprovements
RORRI killer
Rian Corcoran verigood
x
Man I'm a 3rd generation carpenter. I know own my own business carrying out the legacy. And I must say your a great teacher. I'm just watching the video for fun. But I like the way your showing ppl who don't know and weren't born Into this like I was. I love construction. It's fed my family for years. At least 40 yrs
love this Video and presentation. Yep, hard to describe how this all works in a video, but you and crew do a great job on a difficult subject. thank you so much!
Awesome!! Tnx for using the right words so everyone can understand. I'm an Spanish speaking person and love the way you guide people step by step. Thumbs up!!
How are there so many thumbs down on these videos? These are the best, most comprehensive videos I've seen on the topic. Very well done.
Good teacher. I was taught this at collage back in 1990 and to be honest Ive forgot it. I usually build a pair rafters on the floor and strap them together. To be offered up to see if they fit...This is done by cutting the plumb cut on the top of both rafters. If it's not known what pitch then just overlap the tops and bisect. A length of timber acts as the wall plate to mark the birds mouths. A third the width up from bottom of rafter width. The rise is determined by cutting both plum cuts first and joining the rafters together. We don't deduct the ridge thickness until the strapped rafters are offered up and it fits perfectly. Then it's dismantled and ridge deducted. Thanks for taking the time to expand. Greetings from the UK🇬🇧
Amazing video tricky in the beginning but very worth watching and understanding you are awesome man!
Who actually went through and made them selves a shed but isn't a carpenter? Props to anyone who did!
best teacher in the world UA-cam 24 hours a day great video!!!
Here is where I'm confused, if you cut the ridge angle and the birds mouth angle the same, when you drop the rafter into place the ridge is dropping down the hight of the board but the birds mouth only 2". Doesn't this throw off the angle of the board meeting the ridge?? Hope that makes sense.
This guy sucks at explanation of how this is done. The Math he used isn t needed to do this and mainly used to order the materials u need for the job..
@@TepcoCycleRepair how to cut a birdsmouth on a rafter
To be quite frank.....this is the only truss video I was able to learn how to do this. I now feel comfortable making my own trusses for my shed now. Thanks for the video.....it works.
Man it’s not fair when you have all the right tools and know what your doing. Lol. Great video
The more times I watch this, the clearer it becomes. I've seen several different videos on rafter layout, and all are very similar except for small differences in their methods. You are a good teacher.
Great job sir you are a good teacher
I really appreciate this video, demonstrating the precise way to get exact and correct rafters, wether using a ridge board or building the truss and raising it. Knowing the mathmatics involved is a huge help, this will always work on first try if you do the math correctly. Knowing the "right way" to do it is never "over the top!"
The "Shit! Build-A-Shed! Series" are great.
Cheers for this, I've been looking for "what is the maximum span for a 2x6 rafter?" for a while now, and I think this has helped. Have you ever come across - Beybigail Nonpareil Breakthrough - (do a google search ) ? It is a great one off guide for discovering how to create better sheds and improve your woodworking minus the hard work. Ive heard some interesting things about it and my friend got great success with it.
No worries at all! My Shed Plans brings me up to speed with professional tips and tricks used by the pros [Go Here=> *WoodBlueprints. Com* ]. It really let me learn how to handle carpenter equipment, follow the right safety rules, and how to do yo.ur projects professionally so that they will look good and last!
Great video. The reason why is the math lesson was the best I've ever seen demonstrated. I used my numbers with a different slope and size and still had no problem figuring out my rafters. I don't think a math teacher could have done better.
Glad you enjoyed it
Good job! Now I know why I like truss. Much easier.
how awesome it is to see somebody using pen/pencil and paper, instead of a project calculator......the old school way of doing it....cool....I'm a grunt for a framer, and he is also pencil/paper type guy......he does some neat stuff, and we have done some great jobs/re-model historic buildings.....just finished up one in Philipsburg, Montana........opens in early/mid January 2016.....enjoying the holidays off, watching youtube videos trying to gets more smarter.....:)......thanks for your time, sir.....
Just want to point out, being an ophtalmologist, that you did not use your protective eyeglasses for most of the time. My advice to everyone is, do not neglect this. You could loose an eye; I have seen it happen many times in my professional career. And thanks for your great instructional videos.
I use to be a Paramedic for a hospital based EMS service. A rural hospital sent us a patient who had a roofing mishap... a nail from a pneumatic gun missed the stud,...this guy was below. The nail was sitting in his brain, behind the eyes.....I will never forget the x-ray. Conscious, alert,sedated and nervous as hell....
Thank you sir.
At about 19:35 - THANK YOU!!!!! You are literally the ONLY person on UA-cam who explained that the ridgeboard is going to be HIGHER than the initial measurement when cutting a birds mouth. i followed so many instructions that explained how to measure the distance and cut the seat cut, but it was too high for the ridgeboard and I couldn't figure out why. i went back to the geometry and realized that they were all leaving out the fact that you are actually, essentially, raising the rafter board (the hypotenuse) when you cut the birds mouth to have it sit there, so you also have to raise the ridgeboard by the same amount. I wish i had not spent an entire day making cuts and wasting boards trying to make it fit the initial triangle height in the first calculation! :( Anyway, YOU'RE THE BEST! Thanks for confirming what i eventually figured out. (i thought there's no way that could be right, since no one is mentioning it...but it turns everything i read/watched just failed to mention that the actual ridgeboard height is different with a seat cut involved.
Before 19.35 I was thinking that the seat cut was going to cause the rafter to not butt up against the ridge board flush. Good explanation. The ridge board height should be the height of the triangle plus the angled width of the rafter where the seat cut is located. Confusing but makes sense.
Really enjoy your video's. Thank you so much.
Great video. You broke it down for us people that are "handy" but don't do this type of complicated work everyday. Thanks!
Happy to help.
Excellent video ignore the haters they just jealous they living on food stamps a dss your obviously in employment. ITS A SHED!!! Not an extension or as you call it over the pond an addition brilliant vid mate keep it up I'm gonna apply your methods when I build my shed
My man cave is now completed, and it's thanks to you and your video instruction on building a shed. You give me the confidence, to take the plunge and build my own shed. Many thanks again.
"Shit build: Shed series" that should definitely be a new show 😂😂😂😂😂
I looked in the comments as soon as I heard that LMAO!! All his videos are good too.
I had to do a quick rewind, wait what series?
Hi Shannon! Thank you for making the details of how to mark and cut the roof rafters very simple to understand. You have explained the math very clearly! I have enjoyed following the progress of the shed construction. All your videos are very useful and informative. Thanks a lot!
Kevin
small project ,but it 's basic to build a big one .thank u ur video.
+Vinny Trinh Thanks for watching
The calculations and explanations are excellent. This is the best explained rafter video that I have seen so far. I wanted the math rather than just the calculator. Thank you.
Now I’ve actually seen the Pythagorean’s theorem applied outside a classroom setting..
Juanka right
I'm building a 28x40 foot log cabin, I'm not a builder of any means but I havn't done too bad up to now. My complete knowledge of house-building came from books and You-Tube videos.... I guess I've seen about 500 videos and although you shed is only a few square meters, the principles are the same! You have the best video I have seen on roof building!!! Now I'm going to check out the rest of your video's. Thanks for the info
A flat roof it is, then ;o)
Seriously, though, these videos are just wonderful! Thank you so much.
I will never, ever build a rafter but I got sucked in with the easy explanation. It was mesmerizing. Thank you.
Hi! I appreciate the thoroughness of the video! One Question: Why is "1/2 of the ridge board thickness for the total rafter length @ top end" 13/16"? Why isn't it 3/4"? If a 2x4 is 1.5" wide then 1/2 of the width of a 2x4 should be .75. Or am I missing something?
Elaine McGrath The deduction is made on the 6/12 angle through half of the ridge board. In this case it does not make much difference (1/16") but on some slopes it can.
HouseImprovements I am building a tiny house on wheels with a 12/12 roof. Would 1/2 my ridge board, assuming a 2x6, be 3/4"? Your video perfectly explained how to do my birdsmouth. Thank you for that. You made a confusing concept make total sense to me!
HouseImprovements I'm still not sure where the 13/16" came from. Can you go into more detail on how you came up with that number? I am with Elaine on this one. Shouldn't it be 12/16"?
Brandon Maharrey The ridge board is 1.5". Half of that is 0.75". 13/16 is the hypotenuse of a triangle with legs .75" and .75*Slope. In our case the Slope is .5, so sqrt(.75^2+(.75*.5)^2) = 0.77 = 13/16.
Based on the video, I made a google spreadsheet which can handle different roof pitches. Anybody with a google account can make their own copy and modify as needed: docs.google.com/spreadsheets/d/15fm1Yxfd0nw2RWV3P6mZyoOqbtlhGsNZgvabmb3TnRw/edit?usp=sharing
Brandon Maharrey Thanks for your illustration explaining the mysterious 13/16" backoff! And thanks for correcting my math error! As shown in your illustration:
sqrt(.75^2+(.75*.5)^2) = 0.84 = 13/16
Fantastic seeing trigonometry & measurement in these videos; math observed not just in theory, but applied alongside real world examples. It's been a great tutorial.
geometry too 😁
Total rise (in this case) = 3 feet × 6 slope = 18"
you are a humble man... never lose that attractive quality...
"we're in our third video of the shit-build-a-shed series."
Lmao😂😂😂 I heard it too! "Shit! Build-a-shed!" Series.
i love how easy the plans are in *WoodBlueprints. Com* to understand and t.he step-by-step videos they have. Makes getting material really easy
Wish I would have seen this 2 years ago when a built a roof over my deck. It was my first build and it took hours to get the roof angles down for cuts. I had now idea a square could be used like that. Thanks Shannon.
Pythagoras theorem used to find hypotenuse... great!...
time to git out the slapstick(slide rule)
Carl Torjusen sqrt(a^2+b^2)=H only for engineers
C RAMOS finally I can use Pythagorean theorem
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Nice job -- good explanation.
The math that you used in this video is something that we all (should have) learned in grade 9. You really shouldn't feel the need to apologize for doing stuff the right way.
Exelente explicacion muchas gracias por conpartir tus conocimientos . Muy facil entender lo que haces
Best explanation on rafters I have seen in you tube .... explained clearly
Wouldn't it be easier to just make 3-4 little roof trusses especially since it's so small?
This is more about how you would frame a roof then just building trusses plus you gain some headroom with these rafters instead of trusses with a bottom cord. Thanks for the comment though.
I was researching hard for this. Just now you showed me what took me years to find and understand. I now have ideas as to how roof calculations are done. Thank you so much.
1
0:06 shit build a shed LOL. Nice video.
Lol I also noticed that
First thing I noticed 5sec in lol
Building A Shed SHOULD Be Fun &Enjoyable, NOT Frustrating. >>www.fb.com/BuildingShed/?sk=app_337680106275807
I love his videos but this was hilarious!
build it entirely out of shit!
This video is one of the best in explaining how to build perfect roof rafter using slope and "L" ruler.
thanks for the video
How deep should a bird's beak be?
The vertical cut should be no more than 1/3 of the total width of the lumber you are using
how did you get 18 inches of rise, i'm a little confused..
BakyDuffer
Rise over run 1/2 one foot "up" for every two feet "in" from the wall. Six feet (width of building), cut in half is three feet (36"), with the chosen rate of rise half of the three feet is a foot and a half....18 inches....
Easier to say for every 12" horizontal the center of your roof will go up 6" . He was using 6 foot as the width of the entire building. So divide the roof into two parts from the center to the double plates on the wall studs which is 36" or 3 foot. 3 x 6 equals 18" of rise at the center of the house where the ridge is.
icespeckledhens g
Thank you so much for making the power tools quiet in the video. The saws are particularly loud and don't add much, thank you for takin' it easy.
At 5:34 half of the ridge-board deduction should be half of 1-1/2 which is 3/4 not 13/16?
Actually that deduction is measured on the same angle as the pitch of the roof so it is actually 13/16"
No its 1/2 the thickness 13/16 isnt half the thickness You may be thinking of a hip or valley that
...only 1 16th from 3/4 anyways...
rigth !!! a 16 who gives a....... about a 16 of an inch , an a perfect world ,when you cutting you migth end of
take that 16 off anyways . come on" C RAMOS"
3/4 is the perpendicular measurement from the ridge board; not the angle measurement that aligns with the rafter, on which you are measuring to mark the cut. So 13/16 is correct measurement.
You weren't confusing in the least. Beautifully explained. The math couldn't have been made any clearer. Thank you for demonstrating how to use a framer's square. I am going to build a garden shed in my yard later this spring. Though born and brought up in India which means i think in mm, cm and metres, even I was able to catch on when you reduced the rafter length 13/16ths of an inch to account for half the ridge thickness!!! Thank you very much for this video series.
0:06
Finally sombody competent enough to successfully explain figuring those damn angles
"shit, build a shed series" :)
I thought that's what he said.
perfect. exactly what I needed to know to build the rafter. it's one thing to show people you building something, it's completely different when you are showing them exactly how to duplicate it on their own project. I especially appreciated the part about determining the length of the rafters and how to make the end cut and notches in them.
Am I the only one that thinks he looks like Dave from Gold Rush???
absolutely stellar intro. No flash just a cold stare.
So when my students ask when I'm I ever going to use this formula...
That cordless circular saw is truly amazing. So light and simple to use.
You know when I got that saw I thought I would use it only occasionally but I use it almost all the time. If you are doing a lot of cutting all day a corded saw is still better but I find I use the cordless one a lot!
Did he say "Shit, build a shed series" ha!
Stumbled on my words there a bit...lol
hahaha. as soon as i heard it, i came to the comments section to see who caught it and was immature enough to point it out. Hahaha
Not to worry, happens to the best of us ;-) great vid by the way, building a shed soon myself and got some great insight from this series, keep up the good work.
This is the best video set of building a shed that is available on the net. Great series!
Shit build a shed series?! Lol 😂
hakthemonsta que
Installing fabricated trusses
hakthemonsta r
I agree. The best explanation I have ever heard.
You say you have to add the depth above the birdsmouth, but I think you have to add the depth of the birdsmouth itself and subtract a little for the top of the ridge board.
The splitting of the rafter can be avoided by pre drilling before nailing. A bit like a clearance hole for a screw.
This this how the MathUsing in Real life which my teacher never show us
Hey Shannon you are world class at what you do, i have never even attempted building anything or even learned the basics.
i was looking to buy prefab shed in uk cost £500 with base, very weak dry horrible shed and only 8x8, and decided to spend £500 on just chop saw, spirit level, tape measure and a load of wood.
I watched countless videos on how to build a shed, some were helpful, some were more confusing.
Then i found your videos watched them over and over for 1 DAY and have already built my shed frame and half of my roof, doorway with tremor studs and left space for future windows. (progress on my channel anyone) .
Thanks for teaching clearly and better than anyone else i came across.
Love from Scotland Bro
Thanks
Darren
Good work!
lol "Shit build a shed series..." @ 0:05
You do not get us confused. Actually that little mat, help me a lot.
do yourself a favour and go metric,we got rid of imperial and watching you stumble with fractions ,i can see why going metric was such a good idea ,greetings from Ireland
I am Canadian and we do use metric, the problem is I'm still old school on some of this. LOL I do agree metric makes much of this math much easier.
HouseImprovements Not sure if that would solve all the math problems, because the lumber still comes in feet and inches (2x4's, etc). How does lumber come in Ireland? Greetings from California, USA.
It's named in feet and inches, (2x4, etc) but that doesn't cause any real problem when it comes to measuring or calculating in metric.
best explanation of the maths involved in marking out and cutting rafters. Very goog
he said shit build a shed series hahaha
doog
Mmz
Your videos helped me build my 16 X 12 shed from the ground up. I learned so much from studying your videos and the shed came out perfect. Thank you and keep up the good work.
+Mike Morazzini you're welcome, Mike.
I've watched hundreds of videos and yours are by far the most informative. Awesome stuff!
Shannon, this is the 83 year old, building a 9x12x 12H Bunky with my son. He works in the construction field and is busy making a living. So, if there are any mistakes, I correct them before he shows up.Things are going well ( with your helpful videos ) and dad looks like a qualified carpenter ( thanks Shannon ). Did everything your instructional videos said to do and we are now installing the rafters. We botched up a few before we got it right ( my fault ). I chose to use 2x6 lumber because of the height and the wind load. Also, anchored 8" dia. post ( 4ft. deep & 8ft. above ground ) at two points at each corner. We can experience some wild winds some times. Sure wish I had a nailer, my arm is paying the price for hammering so many nails. My wife still thinks I'm crazy. Ordered one of your T-shirts. Sent the wrong size But once again, I should have watched the video. We are 65-70% complete, thanks to you. Your help was the catalyst that gave me the confidence to even embark on a project so daunting.
I love your step by step approach to building. Thank you for making this series of videos, they are excellent !!!
Fine job Shannon, you are a gentle man in explaining how to do things. Thank you for your kind instruction.
Great videoes. In the process of deciding on buying or building, your videoes give me the confidence I needed bringing back old construction tips that I haven't used in years. Thank you!
Shannon, thank you for all the work you all do showing us how to do things. The timing for the shed because I have to build one in a few weeks. I feel very good that I can do it now. But keep making the You Tubes because I have a few weeks to go and I'll talk myself out of it by then.
I really appreciate the roof calculator. SO HELPFUL!
Great job explaining Height Above Plate(HAP) and how it fits into ridge placement. This is left out of many books and videos that try to explain the geometry without the HAP, which is a critical dimension.
Thank you
watched a ton of instructional videos on framing....you by far are the best. thanks
Thanks Brandon
Great. It's the first time I've used the theorem since learning it in school over 50 years ago. Very useful. Thanks.
This guy does a great job and uses common sense approach which is designed to be productive. You on the other hand have nothing better to do than criticize someone who is spending their own time trying to help people.