How to Trim Out a Window
By , This Old House magazine
- Time: 2 to 4 hours per window
- Cost: $2 to $10 per linear foot of molding
- Difficulty: Moderate
Shopping & Tool Lists
- Supplies You Will Need:
- 1. WOOD MOLDING
2. CARPENTER'S GLUE
3. PENCIL
4. PAINT OR STAIN
5. 120-GRIT SANDPAPER
6. WOOD PUTTY
7. 4D AND 8D FINISHING NAILS
- Tools You Will Need:
-
1. 20-ounce finish hammer
2. Hand plane,
for trimming jamb extensions
3. Measuring tape
4. Router,
for making stool profile
5. Random-orbit sander,
or hand sanding block
6. Jigsaw,
for notching stool and profiling apron
7. Pneumatic nailer,
for attaching casing
8. Compass,
for transferring marks and reveal lines
9. Table saw,
for cutting rabbet in bottom of stool
10. Square,
for marking casing, stool, and apron
11. Utility knife or chisel,
for trimming drywall and adjusting fit of stool
12. Miter saw,
for crosscutting trim pieces to length
13. Nail set (to recess heads of hand-driven nails
14. Drill with 1/16-inch-diameter bit,
for making pilot holes before hand nailing
Introduction
Whether restoring old houses or building new ones that look old, Tom Silva finds finish carpentry the most satisfying part of the job. For this project, Tom installed window trim that has reeded side and head casings, plain corner blocks, a thick stool, and a dainty apron, all of which he copied from the original trim. "People often put in a casing that's too small or a different style," Tom says, "but I think it adds to the feel and the value of a home to keep to its original character."
As with all finish carpentry, Tom says, successful installation begins with stable material - clear, kiln-dried wood or precast foam - and ends with precise measurements and cuts. The result is a seamless assembly with tight joints and no gaps between wall and casing. "Take your time, and always measure twice before you cut," says Tom.