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Extension cord passing through a locking hatch door in an exterior wall

Electrical & Extension Cord Pass-Through Door

Pass extension cords through walls — securely.

Feed extension cords or power cables through a locking hatch instead of running them under a window or door. Lock the hatch when not in use to keep the opening closed and tamper-resistant.

Popular DIY Uses

  • Holiday lighting and outdoor tools
  • Block-heater and battery-tender cords
  • Temporary power to a shed or trailer

Which size? The Small door fits most cords; choose Large for bulky plug ends.

Why a Locking Hatch?

Tamper-resistant keyed lock keeps the opening secure when not in use
Durable 3/16" fiber-filled polymer — UV-stabilized and corrosion-proof
Mounts into wood, metal, vinyl, or fiberglass surfaces
Easy DIY installation with basic tools
Made in Sarasota, FL with a limited lifetime warranty

Extension Cord — FAQ

Which size should I buy?

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Both rectangular doors use a 4-7/8" wide opening. The Small door needs a 5-1/8" tall opening; the Large door needs a 6" tall opening for a little more room to reach in or pass bulkier plugs and fittings. If you want more than one opening, the Small 2-Pack and 3-Pack are keyed alike.

What tools do I need?

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A drill, a jigsaw or oscillating multi-tool (or a step bit and nibbler for sheet metal), a tape measure, exterior-grade sealant, and the right screws for your wall. Print our true-scale template so the cut lands exactly right.