This two-pack siding mounting block kit gives outdoor light fixtures a secure black base built for 1/2-inch double lap and 4-inch height siding, delivering a seamless, waterproof fit. Each block is made from high-density ABS polymer and PC flame-retardant material that withstands extreme temperatures and resists cracking, warping, and fading over time. The textured surface can be painted to match your vinyl siding color or left in its original black finish. Installation uses pre-marked drilling points: drill a hole, remove the knockout from the electrical box, insert the cable connector, pass the wire through, and secure the box with the included screws. Each kit includes two mounting blocks, eight anti-corrosion screws, and two NM cable connectors.
Precision Siding Fit: This mounting block is designed for 1/2-inch double lap and 4-inch height siding, giving a seamless, waterproof fit that closes the gaps left by standard
Impact-Resistant Build: Made from high-density ABS polymer and PC flame-retardant material, the block withstands extreme temperatures and resists cracking, warping, and fading
Paint or Keep Black: The textured surface can be painted to match your vinyl siding color, or left in its original black finish
Pre-Marked Wiring Guide: Drill a hole using the pre-marked points, remove the knockout from the electrical box, insert the cable connector, pass the wire through, and secure
Ready-to-Use Kit: Each set includes two black mounting blocks with an electrical box, eight anti-corrosion screws, and two NM cable connectors
Existing Siding Upgrade: The built-in electrical box allows installation on T-111 and HardiePlank overlapping siding, making it easier to add new lighting to your existing siding