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Another FNG with a question

oldeerslayer

Active member
Joined
Dec 9, 2012
Messages
30
Location
SW Wisconsin
Hello from SW WI (the frozen Tundra)
Being retired and cheap I’m always trying to figure out how to save cash without sacrificing quality.
As soon as the soil thaws (May or June), I plan on starting a 24 x 32 garage.
The original plan was 2 x 4 – 12’s 24” oc with ½” plywood walls covered with felt and vinyl siding, which I bought last fall on sale at Menards for under $20/sq. They had it on sale and the 11% rebate both running for just a 2 day period.
Since it gets fairly cool here in the winter (-25°F), I planned to insulate and heat the garage. When considering how to cover the inside walls after putting up the batts and visqueen, it dawned on me that I would be double siding the walls if I used OSB, which makes the most since for durability and ease of hanging cabinets, tool, etc and cost.
Is there any reason I can’t use Celotex (Homasote, fibreboard, what ever you want to call it) on the outside and let the OSB on the inside be the structural part of the wall regarding flex, twist, etc. I don’t see the need to make each wall a box beam. The cost savings would be $200-$300. Granted, I’d have to
brace the wall temporarily until the corners were enclosed. Or I could plywood the outside corners and osb the inside corners for extra strength. And avoid the bracing issue entirely.
Any thoughts are welcome.
:dunno:
 
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rburke65

Well-known member
Joined
Nov 10, 2007
Messages
12,349
Location
Canfield, Ohio
Welcome to GJ from Ohio. Depending on your local codes, check to see if you'll be allowed to use 12' 2x4's 24" on center! Not permitted here. I know your "cheap" but, use the 2x6" and insulate the he'll out of it. You said it yourself..... -25*F. Good luck!
 

kd3pc

Well-known member
Joined
Aug 10, 2013
Messages
3,630
Location
Northern Neck
AHJ (authority (or other nice word) having jurisdiction) will be the one to decide if you can use celotex on the outside, vs OSB. Or someother form of bracing.

In VA, where I used to live, as well as here in TN it is not allowed, doesn't mean that people do it or not. Celotex offers very little to the structure and most jurisdictions want at least something to keep the building up.

OSB is not that expensive, given that it will last decades if installed correctly.

+1 for rburke on the 2x6" walls for more insulation....you might get a month of energy costs out of the "savings" compared to R13 in a 2x4....well worth the extra dollars to x6 construction.
 
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