How to Install an Exterior French Door
French doors are typically used for bedroom and patio entrances. On average the cost of these doors range from $400 to $600 without installation charges. By purchasing a French door unit you have a simple to install unit that does not require major carpentry skills. As a bonus these units come with all hardware needed to accomplish this task making it possible for nearly anyone to perform this installation.
Supplies:
- Measuring tape
- Caulking gun and one tube of caulking
- Nail gun
- Door insulation
- Level
- Battery-powered screwdriver
- Determine the dimensions of the door opening.
- Record these dimensions in a safe place.
- Purchase the French door unit from the local building supply company or an online vendor of your choice.
- Remove the existing door. Ask an assistant to brace the door as you disconnect the hinge brackets beginning with the bottom hinge.
- Place the existing door in a safe location away from the work area.
- Frame up the door opening with 2-by-4s. Ensure that the dimensions of the doorframe are 1/2 inch longer and wider than the French door unit.
- Apply caulking to all four edges of the doorframe with the caulking gun.
- Slide the bottom portion of the French door unit into the doorframe.
- Secure the French door unit into the doorframe. Drive the screws through the pre-drilled holes in the doorjambs on both sides using the battery-powered screwdriver.
- Ensure that the French door unit is level using the level.
- Install insulation between the doorjambs and the doorframe on both sides.
- Secure the insulation with the nail gun.
- Limit access to this door for at least 24 hours. Do this to ensure that the caulking dries properly and does not smear.