The Craftmaster Caiman Smooth Door Design is available in in standard (6 ft. 8 in.) and 8-ft. heights, with common passage sizes for both. Standard bi-fold doors also are available in most passage sizes. Like all Craftmaster door designs, Caiman is made from molded, high-density fiberboard to resist shrinking, cracking and joint separation. The smooth finish accepts all water and oil-based paints, enamels and lacquers .