Alpina 5-ply hardwood planks are available in eight amazing colors. The 1.2 mm European 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 or staple with glue assist. Each carton contains 28.77 sq ft and comes with a 25 years residential surface warranty, 3 year light commercial warranty and lifetime structural warranty.