How to Trim Out a Shower Window

When installing trim around a shower window use PVC trim.

Maintaining PVC trim is also much easier to do than maintaining wood trim.

1. Measure the length and width of the shower window and cut two sections of 3-inch PVC trim so that it is 6 inches wider than the window. For example, if the window measure 24 inches wide, you will cut two sections of trim that measure 30 inches each.

2. Measure the height of the shower window and cut two sections of 3-inch PVC trim to 6 inches longer than the height of the window. For example, if the window measures 30 inches high, you will cut two sections of trim that measure 36 inches each.

3. Lay the four cut sections of PVC trim horizontally on a flat surface. Separate them into one group for height and one group for width.

4. Measure 3 inches in from each corner on each section of trim. Mark the 3 inch measurement along the top edge of the trim.

5. Draw a line back to the bottom corner from the 3-inch mark on each end of each section of trim. Use the straight edge as a guide to draw straight on the line.

6. Cut along the lines using the hand saw until both ends are angled on all four sections of PVC trim. This will create four trapezoidal strips of trim.

7. Apply construction adhesive to the back side of the left side trim section. Press the trim onto the shower wall, lining up the 3-inch mark on each end of the trim with the corners of the window.

8. Apply construction adhesive to the back side of the right side trim section. Press the trim onto the shower wall, lining up the 3-inch mark on each end of the trim with the corners of the window.

9. Apply construction adhesive to the back side of the top trim section. Press the trim onto the shower wall, lining up the 3-inch mark on each end of the trim with the corners of the window.

10. Apply construction adhesive to the back side of the bottom trim section. Press the trim onto the shower wall, lining up the 3-inch mark on each end of the trim with the corners of the window.

11. Tape the center length area of each section of trim using painters tape to hold the trim to the wall. The tape should be 6 inches or longer and will overhang onto the window and the wall. Remove tape in two-to-three hours, once adhesive has dried completely.

12. Apply clear silicone caulking around the top and bottom of the trim by applying it to the crevices around the trim. Rub to a smooth finish using a rubber glove. Remove caulking from the glove with paper towel and continue to smooth the caulking until it forms a waterproof seal around the trim.