AZEK 1-in x 5-1/2-in x 20-ft S4S PVC Trim Board

1-in x 5-1/2-in x 20-ft S4S PVC Trim Board. AZEK boards are 100% protected inside and out ; Will not rot, split, splinter, warp or swell from excessive moisture. Flexible and durable cellular PVC prevents jobsite breakage and delivers long-lasting protection for homeowners. Say goodbye to splitting, splintering, and rotting caused by consistent exposure to the elements