7-1/4 wide and 6 tall this larger sample is comprised of two cut-planks glued together onto a backer. Luminous Grey prefinished edge grain bamboo flooring brings to mind the iridescence of morning fog and would be a unique addition to any environment. Luminous Grey flooring is Smith Fong Bamboo Pure (made with no added formaldehyde) and is FloorScore and FSC Pure (100% FSC certified).