This story shows you how to install a wood window.
These instructions are for a window with no nailing flange. (If your window has a flange. Most unflanged windows are made of wood, and most have brick molding.
When ordering a window be sure to specify a jamb of the correct width. If your walls have 2x4 studs and 1/2-inch exterior sheathing, the jambs should be 3 5/8 inches wide (the extra 1/8 inch allows for imperfections). For a wall with 2x6 studs, a jamb width of 5 5/8 inches is correct.
Unpack the window and inspect it before installing. Make sure all the weatherstripping is in good shape and the mechanisms and sashes operate smoothly.
Check with your building department to find which method of wrapping the opening is preferred; some departments have stringent requirements.
Once the opening is framed, about 3 hours to seal the opening and install a window and its exterior trim; also allow time for finishing the interior wall and installing interior trim.
Tape measure, hammer, nail set, level, stapler, caulk gun, drill with screwdriver bit, flat pry bar, handsaw, reciprocating saw, tin snips
Careful fitting, driving nails or screws, checking for level and plumb
Frame the opening and check for square.
10d nails or 2-inch deck or wood screws, 8d casing nails, 6d finish nails, wood putty, shims, insulation, exterior caulk, roofing felt or building wrap, staples
Pry back the siding and install the felt, building wrap, or self-adhesive flashing. Cut pieces of felt or self-adhesive flashing to fit along the sides. Slip them in behind the siding, fold them over the studs, and staple. Cut a piece 6 inches longer than the width of the opening and install it the same way. Cut slits at the corners.