How To Build A Ceiling Fan Box

What type of box is needed for a ceiling fan?

Most building codes require ceiling fans to be mounted on special fan-rated boxes, which are made of metal or strong plastic and have deep-threaded holes for the mounting screws. The box must be mounted firmly, either by attaching it directly to a framing member or by using a fan-rated brace.

Does ceiling fan box need to be flush with drywall?

They don’t need to be flush. Actually they should be recessed slightly so your device and cover end up flush.

Should ceiling fan box be flush with drywall?

When you install an electrical box, make sure it is flush with the surface of this drywall strip; this will ensure the boxes are at the proper depth when the walls are finished.

Do you need a ceiling fan box?

Ceiling fans are heavy, so you need an electrical box rated to hold one up. It should be fastened directly to the joist, or to a support brace between the joists. Spikes on the ends of the mounting bracket will dig into the wood of the joists and hold it in place. Attach your electrical box to the brace.

Can you install a ceiling fan directly to a joist?

Presuming you don’t have access to the ceiling fan from above, you must either use a specially rated hanger and box to mount the fan between joists or, better yet, screw a fan-rated “pancake” box (so called because it’s very thin) directly to a ceiling joist.

Can you mount a ceiling fan directly to a joist?

If you’re lucky, the electrical box will be installed directly to a ceiling joist. New Fan Installations: When installing a fan where no fixture exists, you have the same options for structural support: either bracket the fan directly to a ceiling joist or install a support bar between joists.

Can you install a ceiling fan with a plastic box?

Electricians use both metal and plastic boxes, and the latter are preferred in some cases because they are inexpensive, easy to use and naturally insulated. They aren’t made for supporting much weight, however, and shouldn’t be used to support a ceiling fan.

How do I know if my junction box is fan rated?

2 Answers. If the box was installed recently in accordance with National Electrical Code (NEC), the box should be labeled if it’s rated to support a ceiling fan. 314.27 Outlet Boxes.

How much weight can a ceiling electrical box hold?

All ceiling boxes are required to support at least 50 pounds (NEC 314.27(A)), so you can assume the box will be able to support a simple light fixture. Boxes that are designed to support ceiling fans must be labeled as such, and must have a label listing the weight it can support if over 35 pounds (NEC 314.27(D)).

When an outlet box is to be installed to support a ceiling fan how must it be marked?

They install outlet boxes marked “Acceptable for fan support” at all ceiling-mounted lighting fixtures. How can you tell whether a metallic or nonmetallic outlet box is suitable for safely supporting a ceiling fan? Boxes must be listed to support ceiling fans and marked as “Acceptable for fan support.”.

Do ceiling fans need extra support?

Ceiling fans need to be properly anchored to an electric ceiling box that’s designed to hold a heavy fixture. It will not only hold the wiring, but also support the full weight of the fan.

How do I know if my room is wired for a ceiling fan?

Copper or green wire is the ground wire and keeps the fan from experience power surges. If there is a blue and black wire coming from the household circuit, there should be two switches on the wall. If there is a red wire coming from the ceiling, it is hooked up to the wall switch.

How far out should electrical boxes be for drywall?

Electrical boxes should be mounted so that the outer edges are recessed no more than one-quarter inch (6 mm) from the drywall surface. The reason is not for aesthetics but to minimize the risk of arcing and electrical fires for safety.

When should outlet boxes be flush mounted?

In walls and ceilings constructed of wood or other combustible surface material, boxes, plaster rings, extension rings, or listed extenders shall be flush with the finished surface or project therefrom. 2017 Code Language: 314.20 Flush-Mounted Installations.

How do you fix a protruding electrical box?

For an electrical box that protrudes slightly, covering switches with a deep switch plate can correct the problem. These covers have added depth. The edge bevel is twice as deep as on a standard plate. Deep plates sit 5/16″ off the wall.

Can you drywall over junction box?

Junction box covers must remain accessible; they cannot be covered with drywall or other surface material.

How far back can a box be recessed in a combustible wall?

In walls or ceilings of noncombustible material, boxes can’t be set back more than 0.25 inches from the finished surface. In walls or ceilings of combustible material, boxes must be flush with the finished surface (314.20). You can’t have gaps greater than 0.125 inches at the edge of the box (314.21).

Can drywall support a ceiling fan?

It is two sections that screw out to press against the joists. As Ray and Pugsi are trying say is that the ceiling drywall does not support anything. You must use an approved fan ceiling bracket of the type that Ray shows. It should be very easy to install the bracket since the hole is already there from the can light.