Framing Tolerances Second Floor Grew - Page 2 - Framing - Contractor Talk

Framing Tolerances Second Floor Grew

 
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Old 02-21-2018, 03:24 PM   #21
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Re: Framing Tolerances Second Floor Grew


When Framing walls on slabs, w/ treated sole plates (usually wider than 3-1/2" due to wetness from treatment) and SPF top plates (dry white wood, and exactly 3-1/2", *example for 2x4 walls and similar errors for thicker 2x6 walls on slabs), the material thickness differences alone can explain the 7/16" growth/difference. This means that the plumbing of the exterior walls at the corners should only be done at the wall line on the interior side with a level (or laser) that reaches from sole plate to top plate. (line side, and not against a stud) Once the framing on the upper floors is framed with all w.w. plates, top and bottom, dimensional errors should cease to be an issue.

Never use dimensions (for spans, etc.) derived or taken from out-to-out tape measured measurements at the sole plates, They will not be correct, and may lead to other imperfect geometry fitment issues.

Go with the lines, not the materials.


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