Zen Bamboo outdoor decking has been lab tested and factory tested for over 3 years, it is a reliable and safe product for outdoor use.Unlike most of the bamboo decking sold on market, out decking is free of delamination, mould and decolouration within 3 years, the color of the material is result of carbonization in 230 degree celsius container with 20 hours, the bamboo fiber is getting close to be bamboo charcocal, it is also pressed in heavy press machine with special glue and techology. our bamboo decking is available in the length of 73" and 96" .