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Old 03-10-2011, 03:21 PM   #1
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Building a 20' x 20' wood frame garage


Help Needed Please
I am putting together a materials list to build this 20' x 20' wood frame garage on my asphalt driveway. This will be the biggest building project that I've tackled! I've built a 10'x12' shed, a large multi-level deck and a few other small out buildings.
I need some help getting the materials list together, specifically the lumber needed for framing it. I am purchasing pre-built trusses (9 reg +
2 gable at 6/12 pitch with 12" overhang).
I also need a little guidance on getting started with the framing. OK, maybe a lot of guidance!
Any help that you could give me would be greatly appreciated. I'll take anything that I can get: directions, a website, etc.

Thanks in advance,
Barry in Western N.C.

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Old 03-10-2011, 03:22 PM   #2
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Building a 20' x 20' wood frame garage


Help Needed Please
I am putting together a materials list to build this 20' x 20' wood frame garage on my asphalt driveway. This will be the biggest building project that I've tackled! I've built a 10'x12' shed, a large multi-level deck and a few other small out buildings.
I need some help getting the materials list together, specifically the lumber needed for framing it. I am purchasing pre-built trusses (9 reg + 2 gable at 6/12 pitch with 12" overhang).
I also need a little guidance on getting started with the framing. OK, maybe a lot of guidance!
Any help that you could give me would be greatly appreciated. I'll take anything that I can get: directions, a website, etc.

Thanks in advance,
Barry in Western N.C.


Last edited by bgbrown125; 03-10-2011 at 03:24 PM. Reason: spelling
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Old 03-10-2011, 03:25 PM   #3
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Building a 20' x 20' wood frame garage


Quote:
to build this 20' x 20' wood frame garage on my asphalt driveway.
Ayuh,... I think ya got yer Cart ahead of yer horse....

A blacktop driveway, Ain't a foundation, at All....
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Old 03-10-2011, 03:46 PM   #4
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Building a 20' x 20' wood frame garage


You mentioned that you are building this on your asphalt driveway?

Are you actually going to attempt this without a foundation wall?

Don't think that will be legal.

Mark
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Old 03-10-2011, 03:54 PM   #5
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Building a 20' x 20' wood frame garage


A foundation will be in place. I need help with the items noted.
Thanks
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Old 03-10-2011, 05:04 PM   #6
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Building a 20' x 20' wood frame garage


How tall do you plan on the walls being?

Edit

Garage door? one or two? double wide single?

Side door?

Rear garage door?

Windows?

Mark
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Old 03-10-2011, 05:15 PM   #7
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Building a 20' x 20' wood frame garage


Take the drawing to the lumber yard. They will be glad to help with a lumber take off.
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Old 03-10-2011, 06:39 PM   #8
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Building a 20' x 20' wood frame garage


[quote=Jackofall1;606898]How tall do you plan on the walls being?

Edit

Garage door? one or two? double wide single?

Side door?

Rear garage door?

The plan is to have one 16' x 7' door garage door, one 36" entry door on opposite end, walls = 8', 4'x8' wood siding sheets
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Old 03-11-2011, 02:30 AM   #9
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Building a 20' x 20' wood frame garage


yea do the lumber yard thing. and get some help with the walls and trusses.
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Old 03-11-2011, 08:03 AM   #10
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Building a 20' x 20' wood frame garage


I'm not going to do the take off for you because everyone frames differently. But I'll give you some starter tips.
Over estimate on your materials. There's gonna be a few pieces in your load that are junk. You can return what you don't use.

So here we go...........

Starting with your sill, shoes & plates.

Your perimeter = 80 lineal feet with 16' removed for your garage door. Do not deduct for the man door

PT sills
(2) 10' for the rear wall
(4) 14' for the two side walls. (the waste will be your 2' pieces for your front wall)
2x6 (or 2x4) shoes the same
(8) 12' 2x6 (or 2x4) top plate
(8) 12' 2x6 (or 2x4) double top plate
8' studs (assuming 16" o.c.) estimate 1 per foot (use this so you have enough for jacks, corners, sills bracing)
Sheet siding I assume is t-111. 12 sheets for your 3 full walls
6 sheets for your overhead door wall and gables.
Roof sheathing is the roof square footage (not the foundation footage) divided by 32
Trim is all linear measurements - repost when you get there if you need help with estimating that. I would order the trim package to be delivered separately.

But in all cases ...even trim ....buy extra....please do yourself this favor....

Good luck and we'll guide you along with any questions.

Last edited by tcleve4911; 03-11-2011 at 01:59 PM.
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Old 03-11-2011, 08:13 AM   #11
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Building a 20' x 20' wood frame garage


Tom....I really appreciate you taking the time to share your knowledge with me.
Barry
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Old 03-11-2011, 11:33 AM   #12
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Building a 20' x 20' wood frame garage


Materials list add to top:don't forget the garage hdr,nails,tyvek or house wrap,button caps or staples,1x4's for truss standing,2x4s for wall bracing and gable bracing,2x6 for fascia,and gable rakes,stainless nuts and washers for anchor bolts,and an attic access staircase.If you got nail guns start with 2 boxes of 3 1/4 let say paslode for paslode guns 2 boxes of 2 1/4,.5,000 slap tacker staples galvanized,that should also be enough for felt paper,3 small boxes of cap nails to help hold from wind the house wrap and felt paper.you can also purchase gutter apron and drip or roof edge and install right after you lay the felt.Depending on your first row you may want to use ice&water shield instead of felt paper.Then you got gun nails for roofing gun 1 box should be plenty 1five lb.box of 3 inch for cap.Always forgotten.Hdr=2x12 service dr hdr=2x6.after all completed use your bracing for garage door wrap/if wraping door will aluminum use on exterior and interior.Garage door hdr should be 16'10''tripple cripple with a 1x8 wraping underside should be treated.concrete opening should be16'5 1/2"/i run a cripple down to slab,in other words 2 cripples on foudation and one down to slab along with 1x8.{p.s.buy hurricane clips and hanger nails for anchoring roof trusses to wall top plates good thing to do,Optional}

Last edited by Stainless steel; 03-11-2011 at 11:45 AM. Reason: Helpfuf framing tips
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Old 03-11-2011, 01:34 PM   #13
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Building a 20' x 20' wood frame garage


What can this home owner do, and what lumber should he use for the 16' opening? I'm thinking they should be 2x12's x 18 with crowns and thats with a double cripple on each side. I'd even consider a piece of flat steel between the header.....what do you think?
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Old 03-11-2011, 01:55 PM   #14
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Building a 20' x 20' wood frame garage


Quote:
Originally Posted by bernieb View Post
What can this home owner do, and what lumber should he use for the 16' opening? I'm thinking they should be 2x12's x 18 with crowns and thats with a double cripple on each side. I'd even consider a piece of flat steel between the header.....what do you think?
I'd use LVL's.
Ron
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Old 03-11-2011, 01:58 PM   #15
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Building a 20' x 20' wood frame garage


16' header would be a good place to consider an LVL header with two jacks and a king stud on each end.
The load on that will depend if the door is located on the eave or gable end.

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