P&TS underlayment is a structural plywood panel that can be nailed directly over the floor joists in 19/32" or thicker panels, saving time and cost in floor construction. Engineered for strength and durability; its cross-laminated veneer construction resists warp, splits, puncturing, and impact damage. - ½ in. Exterior Fir Underlayment, 4 ft. x 8 ft.
Floor covering can be applied directly over the underlayment
Better performance with moisture compared to OSB
Cross-laminated veneer construction provides superior dimensional stability (resistance to warping). It is also resistant to splitting, puncturing and impact damage