More about 8 1/2"W x 9"H, MountMaster for Fiber Cement Siding, Box of 10...
This mounting block is designed for use with fiber cement siding. The mounting block provides a level mounting surface, and a durable vinyl construction provides high performance in exterior applications. The MountMaster block includes a framing plate that conceals, and gives the block a finished appearance that compliments the home exterior. The mounting block measures 8 1/2" in width and 9" in height.
The fiber cement mounting block is available in boxes of 10. It is molded in durable vinyl, one of today's most versatile polymer materials. The mounting block is available in several colors. Vinyl colors are molded through, and so, they will not scratch or peel away.