Installing a Junction Box for a Chandelier

How to make way for a large chandelier

Hanging a heavy chandelier takes some preparation. Here’s how to install a reinforced junction box:



Materials and Tools:

telescopic pole
keyhole saw
roofing nails
drill bits
power drill
plastic gloves
dust mask
safety glasses
junction box with expandable arm


1. Place a piece of red tape on the end of a telescopic pole and mark the desired location of the chandelier.

2. Tape a roofing nail to the telescopic pole and punch it through the tape and ceiling. Have a friend hold the pole in place while you go up to the attic and locate the nail. Be sure to wear safety glasses, gloves and a dust mask since you'll be working with insulation.

3. Place a junction box with expandable arms rated to handle the weight of the chandelier in between the joists and line up with the nail.

4. Trace an outline around the junction box into the ceiling drywall and cut out an opening using a keyhole saw.

5. Set the junction box into the opening and use an awl to mark mounting points for screws into the ceiling joists.

6. Set the junction box aside and pre-drill pilot holes into the joists. Place the junction box back into position and attach securely to joists using screws.

7. After the electrician runs wiring for the chandelier, lock down the strap securing the junction box to the arm.

Next Up

How to Install a Decorative Ceiling Medallion

Add traditional appeal and visual interest to a chandelier or other ceiling fixture with an easy-to-install ceiling medallion.

How to Install a Dimmer Switch

Adjust the ambience and save energy with this project.

How to Install a Motion Detector

Deter burglars and light your own path with these instructions.

Upgrade an Outdated Chandelier

Designer Donna Moss demonstrates a quick and simple technique for giving a plain, dated chandelier a custom faux-antique look.

Make a Holiday-Inspired Mason Jar Chandelier

Designer Dan Faires adds rustic ambiance to an outdoor space during the holidays with do-it-yourself lighting made from Mason jars and lush tree trimmings.

How-to: Rope-Wrapped Chandelier

The DIY experts at HGTV Magazine recreated this flea market find. Here’s how you can, too.

Installing Under-Cabinet Lighting

Lighting under cabinets can add a dramatic accent to your kitchen or bar.

How to Install Track Lighting

Add new light to a room without having to add new wiring for each fixture.

Beading a Chandelier

Create a bedazzling overhead light by beading a chandelier.

Replace Recessed Light With a Pendant Fixture

Add instant style to a room by replacing a recessed light fixture with a stunning pendant fixture.

Go Shopping

Refresh your home with stylish products handpicked by HGTV editors.

Watch Live TV

Don't miss your favorite shows. Live stream HGTV now.

Follow Us Everywhere

Join the party! Don't miss HGTV in your favorite social media feeds.