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Red Oak Carpentry
United States
Приєднався 9 лип 2021
Carpentry and rough framing tips, shortcuts and general jobsite shenanigans. I’ve been a carpenter for almost 23 years. Hopefully I can help you upgrade your framing knowledge by sharing some of the things I have learned from years of making mistakes.
How to calculate shed roof and stacked gable angles
Here is a simple formula for calculating stepped gable or stacked gable angles. And also shed roof dormer angles. This is relevant for various rafter cuts, but most commonly for fascia cuts. There are simple scribe methods for doing this, but the actual formula is just as simple as scribing. 90° - (Pitch A + Pitch B). This works for both the shed roof and the stepped gable scenarios, but in slightly different ways. In this video I hope to explain the difference. I also explain a bit about the speed square angles and how they differ from true angle measurements.
Переглядів: 853
Відео
1000 subscribers!
Переглядів 16911 місяців тому
Just wanted make a quick video thanking everyone who’s followed my channel. I never thought 1000 people would want to tune in to watch me stumble through the world of carpentry, but I’m grateful. I’m aiming to put up a lot more videos this year.
Cutting curved shapes and ellipses
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Here is another method for cutting materials that need to match unusual curves. This grid system has a wide variety of applications in constructions. Pretty much anytime a curved shape interacts with a flat plane it’s difficult to locate a radius. This is a brute force kind of number crunching, not terrible efficient but it produces accurate results.
Hoisting heavy things
Переглядів 138Рік тому
This year has been a good test for us, we took on some projects with complicated logistics. This was the last test in a long remod of a church. This ornamental feature was just shy of 3000lbs, GFRC or glass fiber reinforced concrete. It came in 8 slices and each slice had flanged that received 40 bolts. That’s quite a lot of bolts. We had to build a platform to be able to assemble it and access...
How to calculate hip backing angles
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Here’s one way to calculate hip backing angles. Backing your hips makes everything so much more clean and accurate. Highly recommend! There is also a geometric way to determine these numbers, but once you fingers out this method it’s really fast and easy. Let me know if you have questions.
How to build a bay roof
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This is a long video and if it seems complicated, it’s because it really is. If it seems like no thought when into the organization or filming, that’s because there wasn’t. I’m just recording on the fly and if it was my job to make videos I’m sure I could make this much more digestible. But if you have done any rafter cutting at all, you should be able to pick up a few helpful ideas. Even thoug...
Calculating hip slope when the corner isn’t 90°
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This video is for calculating the pitch of a hip when your corner isn’t 90°. Once you figure out the angle of the hip in plan view (top down view). You can then use this process to figure out the hip slope. If your corner is already 90° it’s pretty easy, the pitch cut is already on your speed square. I misspoke a few times, I think I say 22.5 inches when I meant to say 22.5 degrees. Anyway, let...
How to install crown molding on cabinets
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Hey ya’ll I was installing some crown molding yesterday and I thought I’d make a quick video to share some tips and tricks that I use. Hopefully this will answer some questions you guys might have. Everything was installed using a 23ga pin nailer and wood glue. This is a two step mounding using regular ol’ oak crown and base molding that you can buy anywhere. In this video I show how to determi...
Framing an octagon roof on the ground
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This is just an update to the church renovation, which features a giant 28’ wide octagon roof. The roof system sits on top of 18’ tall walls, which are sitting on a steel structure which is 21’ above the floor system. So it’s quite tall. It’s also difficult to reach it as there are a couple new additions which make it hard to get equipment close to the octagon. We decided to asemble as much as ...
How to build stairs with a landing pt. 2
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How to build stairs with a landing pt. 2
How to build stairs with a landing pt 1.
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How to build stairs with a landing pt 1.
Framing an “eyelid” profile over a window.
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Framing an “eyelid” profile over a window.
How to frame a hip roof with sweep eaves
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How to frame a hip roof with sweep eaves
Strap your walls before standing them!
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Strap your walls before standing them!
Balloon framing and rough framing tips
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Balloon framing and rough framing tips
I was wondering what kind of boots you have on?
@@travisandtracyjacobs6198 redwings
How about just subtracting the smaller angle from the larger angle 45-30.26=14.74. Then use common sense on whether or not the long point is to be sharp or shallow. If it needs to be sharp as in the shed is overlaying the gable. Subtract it from 90. 90-14.74 75.26 with the pivot point.
That method works as long as one roof pitch is a 12/12 or 45 degree, But try your method with a 23 degree roof and a 37.74 degree roof. It produces the same answer as your example, 14.74 degrees. however this time it’s incorrect. Where as my method 90- (37.74 + 23) produces the angle 29.26 degrees, and that is the correct angle.
@@Redoakcarpentry interestingly enough you are correct, but only if the steeper angle is laying onto the shallow angle. 9/12-5/12 is 90-(36.87+22.62)=30.51 from the pivot or 90°vertical line. However with a 5/12 laying over a 9/12 the equation doesn’t work. The correct angles is 14.25 36.82-22.62=14.25 or 75.75 from the pivot or horizontal line respectively. It seems that when a shed is laying over a gable the gable has to be at 12/12 or 45° for the equation to work. Trying lowering the pitch in the gable in your second example to a 7/12 laying onto a 9/12. The two pitches are so close that the cut would have to be at a 6.61° coming off the horizontal line up or 83.39 off the vertical line/pivot.
@@IndianaJBirdokay soo it seems we need two formulas, one for a step gable scenario and one for a shed dormer scenario. (Unless one is a 12/12 pitch, and then either formula works) For any step gable scenario it is 90 - ( A + B) = cut angle on speed square For any shed dormer you simply subtract the lesser pitch from the greater, as you mentioned, And that gives you the actual degrees of the angle aka the “long” cut angle. Are you with me now?
Thank you for this, exactly what I was looking for
I was hoping you would show the complete build. Hard to find any instruction on how flash and shingle bay windows
How do you insulate it?
Awesome video man, the geometry gets a bit confusing but grasped it in the end. Cheers, massive help
To figure out the swoop of the hip could you use the same formula as the common? 6” height/ hypotenuse of the hip to get a radius and then swing that?
Cool. I figure the radius and cut the commons. Place a hip temporarily. Tape a carpenters pencil on the bottom of straight edge and slide the straight edge(keeping it square to commons) up the commons and scribe the hip. The thickness of the pencil is usually close to the drop amount. I don’t frame anymore, but I used to love doing stuff like this.. If you don’t have access to internet, a great formula for finding a radius is C squared divided by 8 h + H divided by 2. C is the cord of the segment and h is the longest measurement between the cord and arc.(height). Good stuff!
@@thedieselpig4448 formula for a segmented arc is a good one for carpenters to know!
The hip lenght is?
Im confuse bro 47.28 is the hip lenght or 35 1/2?
So for a sleeper bevel on an overlay you would add the two backing angles and subtract from 90 correct?
Then 1x4's or 1x2's stick sheathing yeah? Thats what we used to stay with the contour of the curves in the roof framing and it worked out for us. Idk if the roofers shingled it or copper tin roofed it we just framed it on one of th houses we framed.
thank you for sharing
Nicely done
on the jog you said 1 1/2 down off your plumb mark. isnt it supposed to be 3/4 inch same as you did on 2*4 wall plate ?
what about the math to do the rafters that attach to the sleepers? I always mess up the bevel side
This was so helpful, thanks for taking the time to make this!
Why the 6 why 3 or 4 It would widen the radius I suppose but why 6 You said it was a good number I’m just curious
Good question! The maximum sagitta (sag), for this use case, is approximately 8.96 inches. Anything beyond that value will break the "aesthetics" of the curve. You can verify this by solving a quadratic equation for the sag and taking the smaller of the two results. A sag of 6" produces a perfect integer radius of 42 inches. For this use case, the radius simplifies to R = (234 ∕ H) + (H ∕ 2) where H is the sag and 234 is (24² + 36²) ÷ 8.
This is brilliant. I'll have watch this slowly, and over again and...then find a large piece of cardboard, very large at the recycling center to make my templates. Build the template, then add the flat 'roof' front and sides and trace the radius for the hip. Thank you for sorting this out. It's like, sort of, launching a ship.
Might as well manufacture these roofs to attach to homes. They'd probably sell
Nice tutorial! Thanks. I'm getting ready to build one over my side door and this was helpful. I've only ever helped do one before and we basically just scribed the hip rafter by setting it in place uncut and then sliding a long piece of wood, with a pencil attached to the end of it, down the curve of the front rafters. It worked pretty good and didn't require any complicated measurement transfer like you were doing. And it let you to adjust the length of your hip rafter Before the curve is cut, which gives you a very accurate curve. As for the backing angle... You can just leave it long and then shave down the high edges so that it creates a point on the top of the curve that matches the one where the front and side rafters meet at the top and then it dissipates and flattens out as you move toward the bottom of the curve. That way your roof deck meets on the ridge point and sits solid against wood instead of having a gap behind it. Only takes a couple minutes with a plane. Or a belt sander also works good.
Thank you for the comment! Yeah I’ve done that as well. After 25 years I find more pleasure in trying to understand the geometry of these scenarios than just knowing a functional way to produce the product. I’ve put together a lot of complicated shit in the past with scribing and guess and check methods, often that’s the fastest way. Good luck on your project!
Great video! Now, for an irregular hip roof, do I follow the same steps for each pitch? For example, a 6/12 and 12/12 roof, do I go 6 hip and 12 hip or it changes?
your videos are kickass!
Great idea, thank you for sharing that
I want to point out to a guy who believes “ it’s not rocket science “. Actually you’re right ? We are building ppls homes who are making one of thee largest investments of their life’s ! Do I want a clown who claims it’s not rocket science? Or ? Someone who takes pride in his trade and understands the science behind better building ? I am a finish contractor who sometimes subs to a GC ? I can tell you right now I can ferret out clowns like him in a couple questions! And “ I doubt he is kicking anyone in their face”! Carry on; I learn a lot about framing from you thank you!
Awesome video! Thanks for taking the time 💪🏻
Excellent videos! Hoping you’ll do a bay window curved roof video. I’d imagine it’s a combination of this and your curved video. But…
What other books do you recommend? I worked for a larger company for years but because I was diverse in my skill I was always pulled off the site when framing out the roof/ dormer to do other jobs to bring the company in some quick money while they were tied up on the new build. I have my own construction business now but I stay away from new construction because of my lack of knowledge with framing up roofs and dormers. I'm going to purchase a copy of the roof cutters secrets asap.
I remember those three days Only one of my guys showed up on those three days. Keep up the good work. I follow because your tips are amazing.
If i did this id have a ledger. Is there a reason not to? How did you secure it? Great work btw. Im still stuck on scribing in my hip. Need to rewatch and wrap my head around your technique
I have a continuous joist behind the ply, so a ledger would be redundant in my opinion
Nice work. I hope they appreciate you building suck a steep roof. Hahaha. Why they being so mean. Hahaha
I always make sure you have 3 1/2 " height at the plate, it also matters what's going on the gable behind it brick or rock or siding that determine the ridge width Good video tho
Excellent points!
a solution for you hight problem would be to plane both sides at an angle until you hit the center line. hard to explain without a drawing.
One of the best layouts I've seen, glad to see you used backing cuts .How ever if you're not using a closed soffit I double bevel vertical seat cuts on hips to accommodate finished freeze blocks. 40 years ago I learned Your methods using a full length rafter book. Can't count how many PHONY roof to wall hips I've seen. California Framer
One of the best layouts I've seen, glad to see you used backing cuts .How ever if you're not using a closed soffit I double bevel vertical seat cuts on hips to accommodate finished freeze blocks. 40 years ago I learned Your methods using a full length rafter book. Can't count how many PHONY roof to wall hips I've seen. California Framer
Now that looks buttery bro
Thanks for the videos man. The music is up a little too loud to actually hear you speaking.
Yes, my bad
Great Video. This does save time
not good visual
2:58 instead of pivoting around a nail, you could line up the tongue with the perimeter line and then mark 90° up the blade. Ditto for a second blade line or mirror image coordinate. Of course the corner of the square is facing away from the 135° bay hip angle as you have your square. Guessing but the most you could be from the bay's hip angle is 14" along the tongue or the 2 blade lines won't intersect each other without extending the two lines.
Yup that’s true. I only used this particular method because I wanted people to understand how to bicect an angle, because it’s useful in other areas of framing and very often you have no choice but to swing an arc.
@@Redoakcarpentry btw, I liked how you took the effort to back the top edge of the hip, ledger, etc. ★★★★★
@@ronw8628 thank you my friend
Lmao. You don’t need to do all that to find that angle buddy. Just run it long and get a block and boom that’s your angle. You must be just starting out champ.
It’s literally adding two numbers together, but if you wanna waste your cut guys time passing boards around, it’s your dime. Been at this 25 years. I know how to scribe an angle. Everyone knows how to do that. Better carpenters have understand how the angles are determined and have shit cut and ready for their partner.
@@Redoakcarpentry you spent 10 minutes trying to find this angle. When it takes me a minute to get my boy to pass a scrap and scribe my angle 😂
@@kickyourfaceandlaugh607 10 mins? Obviously you don’t understand how it works. It’s literally adding two numbers and subtracting it from 90. A child could do in 2 seconds. Sounds like it would take you 10 mins to do it tho, stick to scribing things you don’t understand. Probably most of your roof is scribed together I would wager.
@@Redoakcarpentry framing ain’t rocket science genius 😂 you have lots to learn champ
Very good video but can you do a video explaining how to calculate the rafter that lays on top of the other roof fist drawing please
🎉 Awesome man. Is that your trailer? Can we see the build out? I’m getting to this here soon. -10 is pretty cold but I would take that before rain. Rain makes me crazy. I am a snow guy for sure.
Red Oak. Stoked to see more content. Always enjoy your stuff. How is the house remodel going? Question on the video: How does one know when to use the true angle? For example, If I know the pitch of each roof, when it’s time to decide the degree, when would I know with my square when I really need to cut 15 degrees or the inverse of that? Is it by looking at it? Or any pitch that meets a steeper pitch will be the true degree and any steeper pitch meeting a lower pitch will be the inverse? I guess I am trying to figure out, when subtracting from 90, what determines the true angle vs the inverse or speed square angle?
If you have a shed roof the formula will give you a true angle, If it’s a pair of stacked gables it will be the angle you get by pivoting speed square to 15° and marking the blade of the square. Should be pretty clear by looking at your building which scenario you have 🤙
@@Redoakcarpentry I believe that is making sense to me. 🤪 Do you know why stacked gables is the speed square degree? Just trying to understand the knowledge.
@@travisandtracyjacobs6198 It doesn’t have to be, you could just skip subtract from 90° and mark out the sum of the two pitches. I prefer to have the same formula for both scenarios. It’s easier to remember. Then I only have to remember which way to mark the square. But you can do it however you want, so long as you understand what the true angle is supposed to be
@@Redoakcarpentry I believe that’s where I am hung up. Knowing what the true angle should be. Not how to get there now that you posted this, but if one gable comes out to say 30 degrees, based on pitch, and the other 35, I would need to cut the gable on top at the difference of 25?
Yes, pivot to 25°on the speed square and mark the blade. This forms an angle of 65° relative to the edge of the board. I think you might be imagining this is more complicated than it is 😊.
Excellent explanation. Thank you!
Just came across your video and to me its "Gold Dust" I will check out this book also, Thank you
Definitely just your plain jane old platform stick framing all day everyday. Not any balloon framing or Chicago framing at all. Not even close.
clear as mud.good job.
I'm always looking for that new red oak content when taking my morning shit...❤
This is insane cool 😎 What would normally be the roof covering for something like this?
Copper
Type your total rise in hit rise then convert stair it’ll give you all your information if you keep hitting the stair button
Это что за козлы? Tougbuild? Как они в работе?