Measure the dimensions of the mirror to gauge the length and width of wood you will need to construct it. Give yourself a little extra wood to work with since you will be cutting the frame moldings from this wood.
Purchase the required wood based on these measurements at your local hardware store. Also purchase a waterproof glue that will withstand the bathroom's humidity. Try Probond Ultimate Glue, Elmer's Stixall or Household Goop for strong, reliable glue brands.
Cut the molding from the wood according to desired dimensions using a handsaw. Use a pencil to mark the indentations where you will cut around the brackets that fasten the mirror to the bathroom wall, and then cut along those markings.
Sand and varnish the molding face to smooth it out and spruce up its aesthetic appeal. Wait for the varnish to dry before proceeding.
Apply the glue to the back of the bottom piece of molding and secure it to the bottom of the mirror. Once it dries, you can do the same to the two side pieces of molding. By placing the bottom piece first, you provide some "support" for the side molding strips. Once dried, apply glue to the top piece and attach it to the top of the mirror.
Things You Will Need
- Waterproof glue
- Tape measure or ruler
- When selecting the wood for the project, keep in mind how its color will fit in with the rest of the bathroom. Mahogany tends to "darken" a room, while pine tends to "lighten" it.