Versatile Outdoor Mounting Solution
This 4‑pack of octagon mounting blocks lets you install light fixtures, security cameras, doorbells, and motion sensors on vinyl, T-111, or HardiePlank lap siding. Each block is built with an integrated electrical box, so you have a safe, code‑compliant enclosure for wiring right out of the box.
Compatibility Details:
Designed for 1/2 inch lap vinyl siding (lap height 4 to 10 inches)

Also fits T-111 siding and HardiePlank lap siding

Universal octagon shape works with most standard outdoor lights and cameras

Dimensions per block: 6.65" W x 6.65" H

What's Included:
4 x Octagon mounting blocks with built‑in electrical boxes

Pre‑marked cutout guides on back for easy wire routing

Installation Steps:
Identify the mounting location and drill a hole through the siding lap for the electrical cable.

Cut the wiring opening using the pre‑marked patterns or drill a custom hole at the center guide.

Run the cable through the built‑in electrical box.

Mount the block flush to the siding and secure with appropriate fasteners.

Apply sealant along the top edge (do not seal the bottom drainage holes).

Attach your fixture and connect the wiring.

Ride the Weather with Confidence:
Bottom drainage holes prevent moisture accumulation. For the best seal, always apply exterior caulk above the block. If you have any questions about fit or installation, our support team is happy to help.