Lowe's Home Improvement

Inside Closet Door Bi-Fold Mirror

Brought to you by Lowe's Creative Ideas

Build and attach a bifold mirror to the back of your closet door for a space-saving add-on.

Bifold Mirror

Project Overview

Skill Level


Estimated Time

1 weekend

Estimated Cost


Tools and Materials


  • Tape measure
  • Drill
  • Miter box with handsaw
  • Calk gun
  • Clamps
  • Paintbrush


  • 1- 1/2" x 4' x 8' pine plywood (#12227)
  • 4- 1/4" x 1-3/8" x 8' pine lattice (#5988)
  • 2- 50" x 14" polished edge mirror (#26204)
  • 3- 2-1/2" x 1-3/4" broad hinge (#311948)
  • 1- 1" gate hook (#58424)
  • 1- 1/2" clear bumper rounds (#55659)
  • 1- Garden Glass Products mirror mastic (#197438)
  • 4- 7" x 23" molding panels (#125989)
  • 4- coat hooks (#46201)
  • 1- #8 x 1-1/2" flathead sheet metal screws (#82651)
  • 1- 18" x 5/8" wire brads, 58174)
  • 1- qt. Valspar paint (CI 63)

Items may be Special Order in some stores. Product costs, availability, and item numbers may vary online or by market. Paint colors may vary slightly from those shown. Availability varies by market for lumber species and sizes.

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Project Resources


To build your own folding mirror, download the Tools and Materials List and Project Diagram PDF then follow these easy steps:

Step 1

When you're at Lowe's picking up your materials, have them cut your plywood to size to make your building experience easier. First, ask them to crosscut the plywood to a length of 52-3/4-inches. Then have them rip that to 16-3/4-inch widths to form the backer A. By crosscutting first, you ensure that both of your panels are exactly the same length. (There are often slight variances in actual sizes of material. It would be a good idea to verify that all the material is the size we have listed before you ask Lowe's to cut your plywood. If any are off, adjust accordingly.)

Step 2

Next, lay out your two pieces of plywood, then the mirrors and trim pieces, to see how everything is fitting together. Using your manual miter box with handsaw, trim your pine lattice so that you have four pieces that measure 52-3/4-inches long to form vertical trim B, and four 16-3/4-inch pieces to form horizontal trim C, all with 45-degree mitered ends.

Step 3

Make sure the outside edge of the trim and plywood are flush -- and the mitered trim corners are flush with the corner of the plywood -- then attach the trim using the wire brads. Continue with the rest of the trim.

Step 4

To attach the hinges, lay the two plywood panels on the floor, trim side up. The gap between the two panels should be approximately the same as the thickness of the middle of the hinge. Place the two outside hinges 4-1/2-inches in from the top and bottom, and the third in the middle. Align the inside edge of the hinges with the edge of the panels. Pre-drill for the holes, then attach the hinges.

Step 5

Paint the mirror, avoiding paint buildup on the inside of the trim where you will attach the mirror. This will make the next step easier.

Step 6

To attach the mirrors to the panels, apply a sufficient amount of the mirror mastic to the back of each mirror. Carefully place the mirrors and lightly press in place. Follow the directions of the adhesive for proper drying times.

Step 7

To make it easier to attach the mirror to your door, first remove the screws from the side of the hinges that attach to the panel (and will not attach the door). This way you only have to support the weight of one of the panels. Hold the other panel up to your door and check to make sure it's level. (NOTE: This will help prevent the mirrors from swinging open or closed.) Pre-drill for the 8-inch x 1-1/2-inch screws in the corner according to the Project Diagram, then attach to the door.

Step 8

Before you reattach the other panel onto the hinges, attach the molding panels and hooks to the back using the glue and clamps. Refer to the Project Diagram PDF for positioning.

Step 9

Hooks Closeup

Once the other panel is attached, attach the gate hook on the edge to keep the mirrors shut and locked when not in use. Make sure to pre-drill into the plywood areas of the edge, not the edge of the lattice trim.