Builders Edge 3SMU811TW4 Mounting Block, 14-1/4 in L, 11-9/16 in W, PVC, White White

SturdiMount fiber cement blocks are manufactured using cellular PVC. Their engineered water management system maintains integrity with its innovative pre-flashed, pre-assembled design. The 12 color-matched colors provide a clean finished look you can't get anywhere else. Our trim white can be left white or painted.