Reply by Don Newton

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Posted on Plywood Flooring

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Don Newton

716 posts in 3617 days

#1 posted 10-24-2012 05:16 PM

As Lee said keep the sheets size to 4×4 or 2×4 as recommended by the NWFMA. I would at least seal the underside of the plywood and the edges. Stagger your joints when laying the plywood and allow a minimum of 1/8” gap between panel edges. There is an “Underlayment Grade” plywood that is not T & G. The underlayment grade doesn’t have any voids in the core.

-- Don, Pittsburgh

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