High Density Urethane
HDU is Warranted against deterioration, warping, and cracking. It is 100% waterproof, unaffected by temperature and will not rot or decompose. ADVANTAGES - HDU will not warp, crack, or bow like solid wood when exposed to the elements.
HDU can be seamlessly laminated together to create any size shape or form and can be blasted to simulated wood grain finish.