Started by NyTexan, March 22, 2019, 11:23:53 AM
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Quote from: NyTexan on March 22, 2019, 11:23:53 AMI could use a little help folks. I plan to build a full loft with an open ceiling below using 4x12 DF beams spaced at 48" +/- per the plan specs. My problem is it's near impossible to get 2x6 T&G decking here in central Texas at a reasonable price. As an alternative, I am wondering if I can lay down 1x6 T&G decking instead (or sanded 1/4" birch plywood with finished side down) plus a layer of 3/4 OSB T&G subfloor on top of that. Thoughts?
Quote from: MountainDon on March 22, 2019, 12:02:21 PMWhat purpose will the loft itself fulfill?? Sleeping, storage,.....
Quote from: MountainDon on March 22, 2019, 01:50:07 PMYes, 1-1/2" T&G is rated to span 48" maximum. There are sheet goods that are made to span 48" but they will be 1-1/8" thick, maybe even 1-1/4". The 3/4" is normally rated as suitable for up to 24" maximum for floors. The sheets will be stamped. If there are two numbers, like 32/16, the first is allowable span for a roof and the second figure is the maximum span for floors. I am certain that using 3/4" will result in quite a spongy floor. The 1/4" plywood used for a downward facing cosmetic finish will contribute nothing to floor stiffness. I believe you need to either find a supplier for the 1-1/2" T&G or change to 24" spacing, which would allow the beam depth to be reduced.