How to Bisect Angles for Cutting Miters | Ask This Old House
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- Опубліковано 19 жов 2016
- general contractor Tom Silva shows a quick and accurate way to cut perfect-fit miters
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Time:
Less than 5 minutes
Skill level: Very easy, no carpentry experience necessary
Tools List for Bisecting Angles for Cutting Miters:
[TOOL_IMAGE 1 {Steel rule}]
[TOOL_IMAGE 2 {Miter saw, to make angled cuts}]
Shopping List:
[BOLD "Two 1x4 boards,"] used as angle-marking guides
In this video, [ITALIC "Ask This Old House"] general contractor Tom Silva shows a quick and accurate way to cut perfect-fit miters.[BR][BR]
[BOLD "Steps:"][BR]
1. Make an angle-marking guide from two 16-inch-long 1x4s. Check to be sure that the two boards are exactly the same width.[BR]
2. Set one 1x4 against a wall; lay the other 1x4 on top and press it tight against the adjoining wall.[BR]
3. Draw a pencil along each edge of the top board to mark the bottom board.[BR]
4. Now use a pencil and steel rule to draw a line that connects the ends of the two previously drawn lines. This new line represents the bisected angle.[BR]
5. Stack the two 1x4s on top of each other and bring them over to the miter saw. Adjust the blade angle to match the bisected-angle line drawn across the 1x4.[BR]
6. Cut through both 1x4s, then hold them against the wall to check their fit. If necessary, readjust the blade angle and recut the 1x4s until they produce a tight-fitting joint.[BR]
7. Once you're satisfied with the miter angle, cut the molding to fit the wall.
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Homeowners have a virtual truckload of questions for us on smaller projects, and we're ready to answer. Ask This Old House solves the steady stream of home improvement problems faced by our viewers-and we make house calls! Ask This Old House features some familiar faces from This Old House, including Kevin O'Connor, general contractor Tom Silva, plumbing and heating expert Richard Trethewey, and landscape contractor Roger Cook.
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How to Bisect Angles for Cutting Miters | Ask This Old House
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The MASTER in his domain. Great tip Tommy! 👍👍
Your technique very easy,bcuz u r amazing
Love ya, Tommy. You were one of inspirations to get started in the trades. I have 3 weeks to go in electricians school in Chicago.You guys have always been important to me.
These shows never gets old. Never get tired of see these.
@Jameson Lukas shut up spammer
@Roman Rhys shut up spammer
Can you do a video on inside angle?
I wish I started out in construction with tom Silva as my teacher. He knows all the tricks.
"What's that?" Lol! I thought he was about to say don't challenge me, this thing works!
same applies for inner angles.thank you so much.ive spent an entire day cutting angles for cupboards by trimming a mm at a time.now its easy peasy thanks to you
Very handy tip! I can't tell you how much time I've wasted trying to cut accurate angles...
I'm wasting time right now on angles. Rrrrr. Frustrating
Tom, out of all the videos through the many years this ones my favorite. Adorable. I always learn something
Tom, this works, I used it for my deck rail, odd angles at both corners. I posted a video of the results. That’s the third rail I installed to get it right.
Tommy is a great teacher. Thank you sir. Great tip!
This was perfect for me today! I was able to make the cut I wanted, and it was perfect!
Tommy, after all these years of teaching you still the man!
It’s crazy how we have all of this material on demand! Plus is in high definition too.
Tom, you are absolutely amazing! I’ve been watching you for about four months. Your videos have been helping me redo our deck. when I tore down the deck I decided to keep the existing posts which were twisted from the weather and not exactly 90°. I didn’t realize how much of a mistake that was until I came to a point where I was installing the top railing at one corner and I couldn’t cut it at a 45° angle because of the twist and bad angle that it was in. I watched this video and now my railings are fitting perfectly even with the bad angles and non 45°. Thank you, thank you, thank you!!!
your guys are perfect, I really love the channel and enjoy watching new videos
Amazing trick. Proof that you don't need fancy tools to get the job done.
Tommy's the man!
Love watching Tommy!
Great method! Thanks for the tip Tom.
Love Tom!!!! Heck all the guys and gals on the show.
I like what you did, good tutorial. But, I think you should have mentioned to turn the second piece of moulding upside down from the other. I really enjoy your tutorials.
If you watch carefully he does turn it upside down for the second cut, but yeah he did forget to mention it. Also, I'm not sure that this trick would work for inside angles.
easily & beatifully explained
That was awesome Tommy, thanks!
Hard to find good videos on this. Yours is one. Thanks
Ask T.O.H is the greatest.
Cool trick Tommy
Pretty cool!
What's that? You don't have one of these?
Brilliant, thank you. Great video.
DustyFingers I saw him pull that out and thought, “seriously? Who owns one of those?!”.. and then the punch line..
Glad to see this. Will apply imediately.
You saved my day. Thanks a lot.
I went through the same problems with figuring out the exact angles with the old home I renovated.Not one corner was the same,the house had shifted that much.I eventually bought an angle gauge.
Thanks Tommy!!
thank you for sharing your ideas 🙏
Super helpful, thank you!
Tommy,
I wish i wouldve had a master teacher like you
Wouldve made being in the trades so much better, though i still love it
Thanks for everything, pal
Great video thanks
Great direction and video. Of course being from the Mumbling Midwest, I had to hire an interpreter to figure out what Tom was saying! LOL!!
Very useful and handy tip ,👍👍👍
great tip! Thanks for sharing
just in time! Thank U! perfect 👍👍👍
Best way I've seen yet tom!! So when can you come over for some beer and remodel my kitchen? Lol
You are my newest best friend. Thank u for info!
This is awesome!
I used a sliding bevel and a protractor works a treat.
👏👏👏👏👏 that's for you sir very cool trick this kind of angels is a pain in the butt specially doing granite back splashes
Neat! I had no idea.
That's cool. Very good tip!
now thats a great short instructional video !
Wow 😮 nice 👍🏻 tricks of the trade 👌🏻
Well done
He gets these impossible miter cuts perfect, everytime!
Awesome tip
THANKS TOMMY!
Still my all time favorite video
Thank you
Best in the biz!
Nice job.. thanks for that tip..
Thanks Tommy 👍👍
Tommy is the man!
How come I’m just hearing about this now.
Thank you
Thanks so much!
You are a genius.
You’re a badass - love this channel
Very useful
nice, thanks
This is a pro-tip if ever saw one!
Great tip knackers!
Genius!
Brilliant idea. That is an external corner, what technique would you use on an internal corner ie to fit the moulding on the other side of that test piece. ?? Could use that info.
I suggest u get an angle finder ,its way easier ,prob in the range of 5-10 dollars but will save u a lot of time ,just by the cheapest u can get ,it should be enough
Simple and effective. :)
great tip......as long as you have material on hand
That's great..thanx
And this works with big base moulding (6") that can't stand on edge to cut?
So funny! Oh you don't have one of these 🙂. I"m dense - will you please do the same video on inside angles?
You forgot to mention that when cutting your 2nd piece of trim you flipped it upside down. Not sure if a beginner would catch that & it could result in a little frustration. Just an FYI
Excellent point! I noticed the same thing after trying this myself. love these Videos! Tommy is great !
Thank-you for that... As important as the Video... !
LOL @ the editing!
you are a magic.
does this work for inside corners
Hello, this old house; been watching your show for many years; I have a question; I built an 8x10 shed and all is good except for the triangular window on the gable front; the roof is 18 degrees or 4in 12 pitch; I cannot for the life of me figure out how to layout the cuts on 4x8 sheets of plywood;; I cannot seem to get the cutline long enough to make the cut necessary to get the 18-degree pitch; hope you,ll consider lending some advice be well thank you, Patrick P
Does this work the same for inside angles
What’s that? Ohhhhh . You don’t have one of deeeeez.! Love it.
Necessity is mother of invention.
Will this work for 90• corner?
Goat
Tommmy the 👑
lol been a carpenter for years , I never knew that tip .
Is there an analogous way to do this for inside angle??
KISS, always best.
Just saved me a contractor!
KaPuchhhhhh! Mind blown
Cool beans...
What a boss
Virtuoso
hello I Have To Make A triangle Using Three Different width Boards So How To Calculate Or Cut The Angles Of Each Side ? If Someone Could Help It Will Be Greatly Appriciated
Thumbs up.....
Great for an inside corner but how do you do an inside corner that is not 90 degrees.
Mr and how do you find an interior angle would you pls show me
Rufino Tellez the same way, just cut the angle the other way on the molding
Its funny. I have the same tool, two of them, and I dont use them very often, either
He’s good