Premium Underlayment Now Available. In stock and ready to ship, our Premium Underlayment is
available in 4’x8’ sheets and features a Natural Birch face
and back. Each sheet is 5.2mm thick with a tolerance of
+/- 0.4mm and a 5-ply combi core. Calibrated and sanded
on both sides, our underlayment provides a smooth, flat
surface for ideal installation. Be sure to contact your sales
representative for pricing and full details.