Replacing Door Frame Molding

First remove the existing door trim and frame.

Replacing door frame molding.

Then set the door in the opening for a test fit. Pine with pvc base 3 piece model 303 064c 47 98 47. If you have a little carpentry experience this is likely a project you can tackle by yourself. To prevent rot when replacing outside door casings such as brick mold use casing made from plastic composite material.

Check to see how the casing fits against the siding. Slide the bar in near each nail to help you lever it away from the jamb. Hold a level against the hinge jamb and adjust the door and frame until the jamb is plumb. Replacing a door trim involves removing the old one cutting your new trim to the right size and nailing it to the doorjamb.

Then use a pry bar to remove each side of the trim. All it takes is wood water and warmth and before you know it solid lumber turns to mush. If the siding is so far out of plumb that the door frame and casing don t fit in either cut back the siding or trim the casing. Replacing quarter round or shoe molding.

Exterior trim is the most vulnerable to attack by rot fungi and it doesn t have to be very old. Where quarter round or shoe molding stops at a door frame trim the exposed blunt end of the molding with a chisel to form a curve away from the door. Woodgrain millwork wm 366 11 16 in. Apply wood preservative to the end grain of the casing.

Find window door trim at lowe s today. The trim shown here was installed only 10 years ago. Measure and cut the new quarter round or shoe molding using the old shoe molding as a pattern. If wood casing is used.

Start by cutting the caulk from your door trim with a utility knife. Primed finger jointed casing molding door pack model 10001390 23 04 23 04. If your door frame is damaged the best thing to do is to replace it with a pre hung door which comes inside a pre built frame. Exterior door casings that are exposed to the elements often rot at the bottom due to the absorption of rainwater through the wood s end grain.

Mark and cut mitered and coped corners as above. Free delivery with 45 order. Then install a pre hung door and replace the trim.