... .Material:bamboo 3.Unique rich textures,High strength ,easy-install Uni-clicking on system Strand Woven Bamboo flooring Eco-friendly, beautiful ... the floor to float freely over the subfloor.11.Installation : “uni-click on” systemFloor itself contains buckle type, need not keel ... sub floor over the concreteLoadiing2600M2/40FT,1200-1350 M2/20FT Uni-clicking on system Strand Woven Bamboo flooring