11 Double Door Installation Steps 11 Double Door Installation Steps

If you plan to hang a double door as part of your home remodeling or improvement, you should be aware that you will need help in doing this.  Deciding on double doors for your home is a great improvement that can add light and beauty to any room.

Materials Needed for Double Door Installation

  • Double/French Door Kit
  • Pry Bar
  • Power Saw
  • Tape Measure
  • Level
  • Drill and Drill Bits
  • Nails
  • Framing Nailer
  • Work Gloves
  • Caulking Gun with Caulk
  • Shimming boards
  • Paint  & Paint Brushes (optional)
  • Hammer

First Prepare the Space for the Double Door

The first thing you will need to do is clear the space for the double door to go.  If this is a previously unused area, make sure measurements are correct before ordering the door.

If this is an area where a single door had previously been, remove the old door and all framing and trim. You will need a pry bar to do this. You may even need a power saw as it is sometimes easier to remove the existing frame in cut up pieces.

Gather Necessary Tools for Installation

For the second step you will need to gather all of the necessary tools and unpack the new French doors. Detach the double doors from the frame and set aside; it will be easier to install this way.

Prepare Floor with Sealing Caulk

Before starting with the actual install, you will need to prepare the floor of the threshold with a layer of sealing caulk. 

Check for Levelness Before Installing

Before beginning with frame, check for levelness one more time. 

Raise frame and begin to shim the frame into place, tapping lightly with hammer; both top and bottom. You will have to check for levelness after each shimming. 

Shim each corner, top and side. When that is done, shim hinge areas. 

It is extremely important to check the levelness often so that the door will hang and close correctly.

Install Screws

Use your drill to install screws.  It is best to do this behind the weather stripping and through each hinge in a screw hole. 

Attach Doors to Frame

When frame is fully attached and level it is time to reattach the doors to the frame. To check your work as you go along test the door by opening; if it stays still, rather than moving closed or open, it is ready. 

After doors are attached, check for gaps.

Attach Strike Plates

Shim above the less active door before installing the flush bolt strike plates. Attach strike plates and check for accuracy.

Create Even Seal Under Door

Adjust the threshold riser for an even seal under door.

Attach Door Hardware

Attach all door hardware and check for connectedness.

Attach Interior Casing and Paint

Attach pre-measured interior casing to interior frame. Paint if desired.

Prevent Water Damage for Outside Door

If the door is an exterior/interior door you will need to apply weather caulking to the exterior frame before attaching casing or brick mould. This will prevent water damage.   

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