Ceiling fan install: the box is the whole job

@sparky_sal · Sep 22, 2026 · 1.7k views
Difficultymedium
Time2 hours

A fan weighs 20 to 50 lb and vibrates. A standard plastic light box is not rated for it. You need a fan-rated box (marked "acceptable for fan support"), either a new-work box on a brace between joists or a retrofit brace that expands between joists through the existing hole. Then the wiring is simple: black to black, white to white, blue (light) to black or its own switch leg, ground to ground.

Balance it with the clip kit if it wobbles; 90% of wobble is blade tracking, not the box. Switches: if you have only one switch leg and want independent light/fan control, a fan with a remote receiver in the canopy is easier than fishing a new wire.

#ceiling-fan#fan-box#brace#electrical

25 💬 6 comments

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@stitchfix_sue 29d ago

Small addition: wear eye protection for the part where you pry it. Learned that one the hard way.

13

Upvoted for the safety notes alone.

13
@sparky_sal OP 29d ago

Unplug it. Always. Takes two seconds and the worst case otherwise is a trip to the ER.

1
@garage_gabe 27d ago

Would this work on the older model? Mine is about ten years older than the one shown.

10
@sparky_sal OP 29d ago

Right around what the post says, give or take shipping.

4

Question: do you need to disconnect power for this or is it safe to leave it plugged in?

2

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