Cali Bamboo takes nails and glue out of the flooring equation with its snap-together bamboo boards, CaliClick Engineered Flooring. Backed by a 25-year residential warranty, the strand-woven floating floorboards have a Janka hardness rating of 3,000 pounds and boast a 10-coat scratch-resistant finish. The 5-inch-wide planks come in three colors: natural, marbled, and java. 888.788.2254.