As it is assembled random, the surface grain is much different from solid bamboo and very near to solid wood, but different from wood. Ideal for commercial as well as high traffic residential installations. Size: 915 x 96 x 15mm (36"x3 4/5"x5/8") 1850 x 96 x 15 mm (72 4/5"x3 4/5" x5/8") 1850 x 142 x 15mm 1850 x 96 x 14 mm (72 4/5" x3 4/5" x 9/16") 915 x 96 x 14 mm (36"x3 4/5" x9/16") 1850 x 96 x 12 mm (72 4/5"x3 4/5"x1/12") 915 x 96 x 12 mm (36"x3 4/5"x 1/2") Material: 100% solid bamboo Color: carbonized & natural Construction: strand woven tongue & groove with a micro beveled edge Coating: pre-finished matt with 9 coats of German lacquer, inc 3 topcoats uv protection, Water-based, solvent-free Bounce coefficient: 952, 000psi Rigidity: 1628 (better than maple) Weight density: >= 1110kg/m3 Installation: float, nail or glue down Warranty: 25 year structural guarantee