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tolerances for wall sheathing

tolerances for wall sheathing

tolerances for wall sheathing

Can anyone assist me in finding information about allowable deviation from plane, or tolerances from plumb for plywood wall sheathing? I live in Florida, and I'm looking for a standard that applies. I've heard 1/4" in ten feet as a rule of thumb

RE: tolerances for wall sheathing

Maybe that's why I can't find one! thanks. bill

RE: tolerances for wall sheathing

Wall sheathing is generally so flimsy out of plane that it doesn't matter. it will mold to the supporting members.

RE: tolerances for wall sheathing

to add to that, I don't think I've ever seen one that is even remotely out of square. Most framer's I know use the plywood to square their framing.

RE: tolerances for wall sheathing

1/4 inch is also the difference between a rough carpenter and final carpenter.

RE: tolerances for wall sheathing

FL Code 2314.2 Workmanship. Wood construction shall be in conformance with the tolerances, quality and methods of construction as prescribed by the standards in Chapter 35 of this code. Which was just a reference list

Ctcray linked, Residential Construction Performance Guidelines, 2nd edition by NAHB, "4-1 Performance Guideline: Wood framed walls shall not be more than 3/8 inch out of plumb for any 32 inches in any vertical measurement."

NACHI.ORG may have some info

RE: tolerances for wall sheathing


That has more to do with the supporting framing than the wall sheathing. I can't see sheathing causing the wall to be out of plumb.

RE: tolerances for wall sheathing

I have seen lots of residential work out more then 1/4" in 10 feet in FL

RE: tolerances for wall sheathing

A lot of it depends on the surfacing material to be applied over the sheathing. 1/4" in 10 feet is reasonable. 3/8" in 32 inches is absurd! For stucco, the flatness needs to be less than 1/4" in 5 feet.

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