How do you trim a window sill?
How do you measure and cut a window sill?
Measure the distance between the two wall marks, then add 1-1/2 inches to factor in your ¾” overhang on each side. This measurement is your window sill length. Cut the window sill stool to length. Hold the window sill against the window and on your layout lines.
How do you trim a window?
What angle do you cut trim at window sill?
Cut the molding for the piece underneath the sill. Cut this the same length as the sill less the 1/2 inch for the overhang (1/4-inch on each side). Cut the depth at a 45-degree angle (scarf joint) to allow room for the returns.