How to Install a Door Frame

For the purpose of this article, we are assuming that you need to install a door frame to replace a damaged one.

Difficulty: Moderately Challenging

Instructions

Things You'll Need:

• Wood for framing and molding
• Paint and brushes
• Pencil and paper
• Measuring tape
• Nails or wood screws
• Hammer or electric screwdriver
• Hand or power saw
• Miter box
• Level

1. Remove the existing door frame.

2. If necessary, sand or smooth any rough places on the surrounding areas where the new frame will be hung.

3. Measure the area where the new door frame will go or take the measurements from the door frame that is to be replaced. Also, measure the existing door, so that you will be sure that it will fit on the new frame. Write down all numbers.

4. Cut the wood using the measurements you took. It may be necessary to use a miter box to properly cut and shape the corner pieces. Use the level to make sure all pieces are straight. Once all parts of the frame have been cut, they can either be assembled into one piece or left separate.

5. Paint all parts of the door frame and molding and allow the paint to dry thoroughly.

6. Install the door frame securely, using nails or wood screws.

7. Check to see that there are no large cracks or gaps between the frame and the wall. Small cracks or gaps can be caulked, but large cracks or gaps will require you to start all over.

8. Re-hang the door in the new frame.

9. Install the new molding around the new frame.

Tips & Warnings

• Remember this saying, “Measure twice, cut once.”
• It is usually easier to assemble the entire frame first, and then hang it as one piece. This eliminates frequent stops and starts to get a part of the frame, attach it, nail or screw it in, and repeating the process until the door frame is installed.
• Even if there are no cracks or gaps, it is still a good idea to caulk around the new frame. This can prevent future problems.
• Use proper eye and hand protection when using either a hand or power saw.
• If using a step stool or ladder, make sure it is firmly placed on a level surface. Use care when stepping on, up or off a stool or ladder.