Du Monde 7-ply hardwood planks are available in eight amazing colors. The 3mm French White Oak country grade surface layer is wire brushed and beveled on all four sides. Our precision tongue and groove makes installation easy. Glue down, staple with glue assist or float. Each carton contains 20.92 sq ft and comes with a 25 years residential surface warranty, 3 year light commercial warranty and lifetime structural warranty. Radiant heat compatible.