Underlayment Plywood Coastal produces underlayment panels as defined in US Product Standard PS1-09 for Construction and Industrial Plywood. Underlayment plywood is specially constructed for installation in flooring applications where puncture resistance is a requirement. These panels are designed with thicker face veneer and/or limited voids in the ply beneath the face. Our 19/32" and 23/32" thicknesses also carry the "STURD-I-FLOOR" designation with the accompanying Span Ratings for single-layer floor construction. We offer our 19/32" and 23/32" underlayment panels in both square edge panels and Tongue & Groove panels. Production Item Thickness #Plys Pcs/Unit Span Rating Construction Layup Notes Picture Underlayment 11/32" 15/32" 3 4 88 70 C Plugged Face D Back D Inner plies Our BC panels are approved for Underlayment Underlayment STURD-I-FLOOR 19/32" 23/32" 4 5 56 46 20oc 24oc C Plugged face C veneer under face D Back D inner plies Available in square edge and T & G
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