How to Frame a Mirror

If the mirrors in your bathroom are flat and featureless, dress them up with picture-frame molding and decorative corner blocks.

Highlights:

Step 1: Cut the Shims and Attach the Spacers
Step 2: Paint and Attach the Corner Blocks
Step 3: Cut and Attach the Molding
Step 4: Complete the Frame

Step 1: Cut the Shims and Attach the Spacers

Measure the thickness of the mirror, and use a miter saw to cut small wooden shims at that thickness (Image 1).

Attach the spacers around the mirror, using construction adhesive and screws (Image 2). Set the spacers about 10" apart, and attach spacers at each corner.

- Image 1
- Image 2

attach spacers around mirror with glue and screws

use miter saw to cut shims the thickness of mirror

Blake Brinkman

Step 2: Paint and Attach the Corner Blocks

Prime and paint the molding and corner blocks. Paint both sides, as the mirror will reflect the back of the molding.

Glue the backs of the corner blocks and set them in place. Use tape to hold them securely while the glue dries.

glue back of corner blocks and set in place

Courtesy of Blake Brinkman

Step 3: Cut and Attach the Molding

Measure the distance between the corner blocks, and use a miter saw to cut picture molding to fit. Cut at a 90-degree angle so the molding will fit flush against the corner blocks.

Dry-fit the molding, and mark the locations of the shims. Drill pilot holes based on the shims, and secure the molding to the wall with finish nails and construction adhesive. Make sure the nails go through the shims.

Step 4: Complete the Frame

Tip: If the mirror butts against the backsplash, use construction adhesive to attach the bottom piece of molding directly to the glass. Use tape to hold the molding in place until the glue dries.

Touch up any nicks or scratches with paint and a cotton swab. Fill any gaps with spackling compound or caulk.