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How to Install Junction Boxes

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How to Install Junction Boxes: Install a Junction Box
A Junction Box With Wires

A Junction Box With Wires

Timothy Thiele
To install a junction box, first pull the two wires back so that the box can be added. Remove two of the box's knockouts to allow the wires access to the box. Install cable connectors in these holes and tighten the locknut with pliers. The wire will slide into the connectors and can be tightened with a screwdriver. Now, install two screws through the small holes in the back of the box to secure the box to the wooden joist.

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