I purchased decking material from Cali Bamboo that does not preform as they advertised. It was install with there fastening system, properly space, and to their specification. Yet, the material is cupping, splintering, and drying out. I was told that the maintenance schedule would be every 7 years, and only for UV protection to maintain color. I wish that I had done more research. There are many complaints out there about this product.