How-To: Calculate & Cut Perfect Rafters (Gable Roofs)

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We're going to learn how to cut rafters, it's something many people struggle with. It's a simple process once you've got the math figured out. Let's get into it and show you guys how to cut a roof using a Tape Measure, Speed Square, Saw and fasteners.
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Introduction: 0:00 - 0:40
Getting Started: 0:40 - 1:05
Crowning Material: 1:06 - 2:10
Houzz Pro: 2:11 - 3:33
Pivot Point on Square: 3:34 - 4:43
Understanding The Roof: 4:44 - 7:05
Calculating Rafter Length: 7:06 - 8:14
Cutting Rafters: 8:15 - 10:08
Seat Cut of Rafter: 10:09 - 13:30
Installing Rafters: 13:30 - 16:40
Alternative Pitches: 16:41 - 18:56
Overhangs: 18:57 - 21:48
Collar Ties or Ceiling Joist: 21:49 - 22:31
Rafter Hardware: 22:32 - 23:53
Closing Out: 23:54 - 24:33
#construction #framing #building

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Опубликовано:

19 июл 2024

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Комментарии : 110

@SpecialAgentNoble77 2 месяца назад

Great lesson. BUT WTF is up with everyone and tattoo's?? 🤷🏿‍♂ No judgies over here BUT .... I see videos like this and immediately pin them to my 10yo's playlist. Then I see all the damn skin graffiti. Now I'm torn with a double edge sword... Good seeding and bad seeding... 🤷🏿‍♂ Well at least I learned something I can teach him. #CocaineIsAHellOfADrug #DontDoDrugs #DontGetTattoos What you say in this video far out ways what is written on your skin. And that is there forever 🤦🏿‍♂ I'm just ranting, you'd be a great example for the youth minus the damn graffiti and you don't sound 🌈ish #Subbed 🤷🏿‍♂

@MattBangsWood Месяц назад

Never done cocaine, never smoked marijuana, never been hooked on meth, never been tattooed under the influence or with a drop of alcohol in me. Have a love for art, I enjoy making connections with the artists that tattoo me. I’ve been tattooed all across the US, it tells a story. You say no judgement but you’re full of judgement.. The difference is brother, regardless of what you are, the habits you have, my children will never look at you and think of you as anything other than another human being. Whereas yours are being taught to judge a book by its cover. Have a good day, hope you’re able to learn what I’ve shared in this video without being offended by my grandfathers coast guard portrait on my arm.

@SpecialAgentNoble77 Месяц назад

@@MattBangsWood I'm old school... Not judging but don't want my kids getting tatts... Art belongs on the wall. 🤷🏿‍♂ And your grandfather should be proud.. and you honor him with your knowledge.

@bradleylopez5860 Месяц назад

Dude safe your comments and don’t judge he is already setting a good example and not showing bad things

@SpecialAgentNoble77 Месяц назад

@@bradleylopez5860 Still haven't explained the tattoo? 🤷🏿‍♂ and beyond... neck ear eye tattoos.... finger tattoos... Why? I get it... I had a choice to shower today... I passed.. It seemed a good idea at the time... But later turned out not such a good idea. 🤷🏿‍♂ Back in my day we spoke code through our vanity license plates. Now its personal art that can never be sold.. 🤔

@user-or1rl2ml9m Месяц назад

Some of the nicest, smartest, most compassionate people are covered in tattoos, myself included. Some of the most angry, judgmental, narrow minded, narcissistic people have bare skin and go to church every Sunday. Be better SAN77. Great videos Matt, keep up the good work!

@BWIL2515 2 месяца назад

One of the best explanations of roof framing I've seen seen on RU-vid it's a simple process but some people make it harder than it is

@miketolson2915 2 месяца назад

Thanks for the no, non-sense approach on explaining this to us newer guys to roof framing. Greatly appreciated brother.

@BuilderMega Месяц назад

Matt, I watched you for years. You’re an amazing person the world needs more men like you. Thank you for all you’ve taught me. This video just like the rest of them are all amazing and full of information.

@MattBangsWood Месяц назад

Be the change you want to see. In a world full of angry carpenters, be the happy one who helps others. 🤷‍♂️ Appreciate you for the years of support..

@MattBangsWood 2 месяца назад

Any questions, feel free to ask.. The basic calculation is below: [OVERALL LENGTH OUTSIDE OF WALL TO OUTSIDE OF WALL] - [RIDGE THICKNESS] = [XXX] [XXX] [RUN] [PITCH OF ROOF IN INCHES] [PITCH] [DIAG] = [LENGTH OF RAFTER FROM HEAD CUT TO OUTSIDE OF SEAT CUT]

@patrickjohnson7801 2 месяца назад

I'm 68 now, started with S&S framing in 1976 with a father that started in 1946 with Kaiser community homes ( yes the car company built houses too) I don't know how old you are but I believe after watching your videos that there's hope in the framing industry and keep pushing forward and the only one little thing is that a rafter or joist is not supposed to be nailed to the pressure block it self it goes into the ledger or ridge on a 45 degree angle, that's where it gets the name pressure block. That's old school son but I don't think you're ever going to see that on a print today . S&S was building 900 home's a year back then.

@ajones2840 2 месяца назад

Probably the most comprehensive video on this topic. Thanks bro

@hu5tle- 2 месяца назад

I know you're doing stairs next. Would be great to see how you calc out winder stairs that require a minimum of 6" depth for the winders themselves, per code.

@feliperuiz3813 2 месяца назад

Best how to Video on cutting common rafters on a gable roof! Love this series! Would like to see a video eventually on cutting a full hipped roof ! Thanks Matt!

@Gomers66 2 месяца назад

Definitely one of the best videos I've seen you make on the basics of roof framing matt! The only thing i think you could've done is shown how to get your run calcs for your rafters without using the calculator, like using the good ol framing square

@justinmanship5431 2 месяца назад

I think it would be interesting for many if you expand on this by adding some info on how to calculate ridge pole heights and explain HAP to people. That would wrap this segment up perfectly.

@phillycheee 2 месяца назад

Thank you for being thorough but not overdoing it! Appreciate you showing a few different examples. Amazing thanks!

@echologixxx9758 2 месяца назад

Mannn this was on point, easiest explanation I've ever seen and just solidified and corrected what I thought I knew! A kind request on top of the future hip/valley video, can you make a stairs video as well? If you are looking for new content, one mystery I don't fully understand is how plans callout depth for insetting plating (to account for sheathing flush with foundation, exterior insulation + rain screen). If you can do an overview video of that sort of thing. Btw You sold me on those Ariat boots a few months ago ended up picking up a pair myself haha, keep up the good work!

@MattBangsWood 2 месяца назад

Let’s cover it all! I’ll bring this comment up in my next video.

@austinryanrogers 2 месяца назад

This video couldn’t have come at a better time! Cutting my first room for a shed I’m building and while I am an experienced carpenter I’m a novice with the construction calculator and this just made the roof 100 times easier for me

@user-pb9ky3gf2s Месяц назад

Thanks bra, learned a lot from you.

@NortheastFrameGang Месяц назад

Love the "Blue Collar Briefcase"...just purchased the framing rig in the camo high low...BTW, great video

@T_157-40 2 месяца назад

I think my first novice project will be a doghouse.

@mellomao978 Месяц назад

Thank you for breaking it down!

@seanmcguire833 2 месяца назад

Great video would love to see a full roofing course

@ApexFraming 2 месяца назад

Great video. Would you make a video on how you square up a house for snapping out a new build?

@307roofer2 2 месяца назад

This is the best video on basic roof framing I have ever seen. Great work!

@tnine3 2 месяца назад

Love that channel and the info, as a truck driver I’ll probably never use any of this but always good to know something new 🤘🏼😂

@petee6476 2 месяца назад

Excellent Explanation you make it seem so easy great job.

@MrTexasDan 2 месяца назад

Super clear and straightforward. Thanks a lot!

@1671bryan 2 месяца назад

Excellent job making a simple and easy to understand video. It is a very simple process but is very confusing for alot of people until you finally get it !! This is a perfect way how to just keep it simple. Great job matt🔥🔥

@Blue60 2 месяца назад

Fantastic video, and thanks for sharing and very informative Cheers

@rubiosdevista 2 месяца назад

Danm dude this video is 10 years too late for my shed build lol.. you making me want to tear it down and rebuild it

@JD_on_the_Grind 2 месяца назад

Great video and the new studio looks awesome!

@VoteBLUE2024toSAVEDEMOCRACY 2 месяца назад

Thank you, Matt! You are a complete stud!

@davidemmons3867 2 месяца назад

Awesome well thought out and explaiend video.

@daveryan7934 2 месяца назад

Very nice video. Thank you

@OperationDarkside 2 месяца назад

Great video. Feels like a modern version of Larry Haun's tape about roof framing.

@j_rockss8235 2 месяца назад

Great video!!

@TheHonudiver Месяц назад

Great job!

@randomperson1815 2 месяца назад

Wow this is very helpful.

@wrinkledasian5206 Месяц назад

That background wall is a nice design.

@MattBangsWood Месяц назад

Thank you!

@isaiasrayo7480 3 дня назад

We do A35’s on blocks w/ double plates and hangers w/ slit on rafters square

@marka.crowley5584 2 месяца назад

Very nice video...too bad I watched it after doin it the hard way! I appreciate your craftsmanship.

@brucegorman1825 2 месяца назад

Hi Matt I love your videos I can’t believe you put this up today , I’m raking my brain all day today I built myself a small shop in my backyard I’m to the point of doing the rafters for the overhang on the gable ends, when I put them in with the top level with the ridge they are not level with the lookouts if I place the beam higher then the ridge then the lookouts are now level with the top edge of the beam is this right ? I guess I could just cut off the top that sticks over the ridge. Help Im lost. And I have watched all your videos and for such a young age your the smartest guy I have ever seen your Dad should be very proud. I hope my question is not to confusing. br

@tinysand3517 2 месяца назад

man, this guy reminded me my Algebra teacher in H.S. Good job bro. When are you going to have a tutorial for the hip roof?

@MattBangsWood 2 месяца назад

We’re in filming for both hips, valleys & stairs at the moment.

@johnowens178 2 месяца назад

This is absolutely fantastic, thank you! Can you do a similar video on hip and valley cuts?

@MattBangsWood 2 месяца назад

Yeah, we’ll do a little hip / val section as well.

@steverm8389 2 месяца назад

Hello i appreciate these vids. Any thoughts on adding blocking between rafters? Also any vids on replacing windows w stucco and sizing it correctly when ordering a window w stucco mould? Would love your thoughts on nail on not retrofit

@optimismresonance 22 дня назад

SuperB💯

@AirsoftFun13 2 месяца назад

How would you calculate an angle for a rafter on let’s say a 2/12 roof pitch tying into a 5/12 roof?

@scotttalkowski691 2 месяца назад

Hey Matt, don't see the listing from Simpson Strong tie that you mentioned for hardware for this type of application.

@rubenvarela4077 Месяц назад

Or the blue book that comes in the square

@MarkSaccount 2 месяца назад

Do you ever do your rise of the ridge and install that first?

@steverm8389 2 месяца назад

when measuring run, do you include sheathing thickness in the calculation for the heel cut? or is it just double top plate edge to edge? curious about how to include sheathing siding and order of operation in the setup? For example, if i build the walls for 12x14 and add the sheathing, do i measure w the sheathing for total rafter length for heel and ridge beam cut on a 8’ tall wall?

@MattBangsWood 2 месяца назад

You wouldn’t include siding, but you can add 1” for 1/2” siding on each side. 12’ being 144” + 1” for sheathing = 145”.. subtract the ridge of 1-1/2”, you have 143-1/2” divided by two to split it gives you 71-3/4” for your run. Note: when you account for sheathing as well, you need 6” on your seat cut, instead of 5-1/2”!

@steverm8389 2 месяца назад

Awesome thank you!

@stevenyeo5481 2 месяца назад

🤘

@bryansherlin1914 2 месяца назад

A video on bastards hip with different heel heights!!!

@michaelmerced-gilardinodes7587 2 месяца назад

Do you have a jack or hip-rafter video?

@MattBangsWood 2 месяца назад

Coming!

@Derpherppington 2 месяца назад

do u have to shoot nails perfectly in those holes in simpsons strong A35 ties? i saw other video they bend the tie underneath but you put them at the corner only

@MattBangsWood 2 месяца назад

Yes, A35 with positive placement nailer.

@brianstielow9169 2 месяца назад

Can you go over this without a framing calculator

@MajorJakas 2 месяца назад

You sound like one of those people who enjoy finishing a job before you look for problems.

@mykalimba 2 месяца назад

You can do the calculations with a basic calculator (one that can calculate a square root), but it requires some basic algebra knowledge.

@clydedecker765 2 месяца назад

One thing that bothers me is that 4 3/8 clearance between the top plate and the surface of the rafter at the birds mouth. That distance is small compared to the thickness of some desired insulation. What kinds of consideration would you give to the materials used for ridge beam, rafters, and top plates?

@MattBangsWood 2 месяца назад

In most cases, you wouldn’t be building anything with 2x6”. It would likely be done with 2x10 minimum, meaning that number would grow substantially to around 8-3/8”.

@waltk9067 2 месяца назад

👍✌

@adrielmontiel1887 2 месяца назад

Does it cost money to use the master pro calculator on the phone ?

@kickyourfaceandlaugh607 2 месяца назад

It’s better to have a actual construction calculator $50 calculator vs $1400 phone.

@daktusdurggery5505 Месяц назад

What do I do when I can’t have a birds mouth and no overhang?. 2x6 rafter sitting on 2x4 wall

@MattBangsWood Месяц назад

I by can’t you have a birds mouth? Should still have one. If you can’t have an overhang, at the end of the seat cut, mark that line plumb up and cut it off. No tail.

@daktusdurggery5505 Месяц назад

@@MattBangsWood well I’m not really sure something about a pivot point at the top plate? All walls are 8ft high, only one section is vaulted 2:12 pitch. I was told the 2x6 at a 10ft span would just sit ontop of a “second wall” built atop the level of the standard height walls? This is technically just ceiling framing as the structure is supported by steel. No weight of roof on the lumber?

@Derpherppington 2 месяца назад

are you affiliated to the Latin King gang. how do u calculate the ridge beam height . does this calculation works for hip roof? this is just in time for me to frame my hip roof to connects to old hip roof. thanks

@MattBangsWood 2 месяца назад

If you wanted to find the ridge height.. Take your run, enter your pitch and hit rise.

@chantz7515 2 месяца назад

What I wanna know is how to make these calculations without a calculator

@kevinparmelee5609 2 месяца назад

A Swanson speed square comes with a little rafter book with all the calculations. You need to know the span and roof pitch and you can look in the book

@leizhang7415 2 месяца назад

@Nutssofast 2 месяца назад

Great video but heel not the part that is left above seat it is below. Whats left above is hap, height at plate...also good engineers arent using h1 or a35 anymore on rafter ties, they use plate screws now. Lastly i find Construction Calculators are cool to save time but get new guys in a world of hurt real fast when they dont understand trig...

@hurshk1 2 месяца назад

What’s the calculation for the 3/12 he was doing in the video? It’s been a long time. I was trying my darndest but without an angle in degree I’m pretty useless

@Nutssofast 2 месяца назад

@@hurshk1 any time you know the rise and run the angle is the tan^-1(rise/run).

@hurshk1 2 месяца назад

@@Nutssofast thanks man!

@Nutssofast 2 месяца назад

@@hurshk1 I have a degree in math and have been building my whole life...I'll let you in on a math secret... 1/(cos(tan^-1(rise/run)) x projection = rafter Works on any common, hip, jack or valley. Projection is level from outside plate w/ ply to the plumb line of edge of ridge. Any questions I'll happily answer.

@hurshk1 2 месяца назад

@@Nutssofast awesome! Thank you sir. I work in oil and gas and use some math to do my job but it’s been a long time since I’ve seen a classroom.

@craigfinno551 Месяц назад

Wow matt got chubby

@MattBangsWood Месяц назад

Rough out here. Not 21 anymore, unfortunately.

@joehuinker7009 2 месяца назад

Throw away the calculator and get out the framing square Matt. We learned that in trade school in 75 76. Oh that was in the 1900s

@MattBangsWood 2 месяца назад

We can do that for an episode, show how it’s truly done.

@rarendsen9688 2 месяца назад

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@kickyourfaceandlaugh607 2 месяца назад

Shouldn’t you minus 3/4? Not 1.5

@rob107 2 месяца назад

I also have the same question

@MattBangsWood Месяц назад

If you take the overall run, side to side; and subtract the ridge in full you’d then divide by 2. If you take the overall run, divide by 2, then you’d only subtract half the ridge as you’re working with 1/2 of the overall.

@tractorjeff6757 2 месяца назад

Board. ridge board

@dusty7264 2 месяца назад

Fantastic video, most of the stuff out here uses trusses, nice to know how to calculate it.

@MattBangsWood 2 месяца назад

It's something everyone should know. Even if it's just for a filler section of a roof, being able to calc and cut them makes life so easy. I've worked with too many carpenters that would scribe things because they didn't know the first thing about calculating..

@dusty7264 2 месяца назад

@@MattBangsWood I agree, I know a old carpenter who can figure it all out with a Rafter Square, everything you need is right on the square, you can also draw Octagon, Hexagons and figure lots of other things with the square, he said when he was a apprentice the hard a entire class on how the to use. What you’re doing is great, we learned a lot from Larry Hauns books back in the day. Have a great day