How to Build a Custom Frame for a Bathroom Beveled Mirror

Measure the length and width of the mirror. You need two long pieces of molding and two shorter pieces for the sides. Measure the width of the beveled edge. To cover it up, you need a rabbeted, or notched, edge the width of the beveled edge along the back side of the molding.

Cut the molding to fit around the edge of the mirror using a miter saw. Test fit the pieces to make sure you have all the angles cut properly.

Wipe stain onto all sides of the molding pieces with a soft cloth. Remove excess stain with a second, clean cloth. If you prefer, paint the individual pieces of wood with a paintbrush. Paint or stain a scrap of molding as well. Allow the stain or paint to set for two weeks. This curing period helps prevent adverse reactions between the stain or paint and the glue.

Mix a small amount of clear epoxy resin with its hardener. Place some of the epoxy onto the rabbeted edge of a piece of scrap molding. Attach the scrap molding to a small piece of plate glass. Hold the wood in place on the glass with a piece of painter’s tape. Allow the epoxy to dry the amount of time recommended on the package. Remove the tape. Check the bond between the trim and the glass. Both should have a solid bond with each other. If not, you know to add more epoxy as you proceed.

Mix another batch of epoxy resin and hardener. Spread the epoxy along the rabbeted edge of each of the four pieces of trim. Attach the trim to the mirror, taking care to align the corner angles. Hold the trim in place with several pieces of painter’s tape. Let the epoxy dry and then remove the tape.