
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?
Recommended Products
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.

