If you are hanging the french door curtains above the doors measure the width of the french doors plus 2 inches on both sides for a total of 4 inches.
Hanging french doors margins.
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If the floor is more than 1 4 in.
Open both doors fully and stabilize each with a doorstop.
If hanging the curtains to cover the panes of the doors measure the width of the pane of the glass and add 1 inch to each side for a total of 2 inches.
Measure the height and width of the french door windows.
Place door shims at the top and bottom hinge locations using a long level or a straight board and a short level.
Measure the width of the space you want the curtain to span.
Nothing screams out of plumb like a new pair of badly hung french doors.
Next use a door hanger s level or a short level and long straightedge to check the rough opening for plumb.
Measure the distance between the top of the door and the bottom.
Out of level across the rough opening measure the difference and trim the high side s jamb leg to even it out.
The basics of domestic door hanging are the same for almost every type of door whether it s hardwood or softwood ply flush moulded or paneled and either a normal or fire check door.
Engineered for both quality and performance this door is available in varied configurations as single double triple or quad panels.
Choose magnetic rods and french door curtains that fit the space.
You already know the standard approach to hanging a door.
Set up a power or cordless drill with a screw tip attachment.
Of course this was before we had pre hung doors.
Purchase door curtain panels that equal one and one half times the window width so you can gather the material when you hang it.
Once the doors are working properly nail the fins to the wall with nails every six to eight inches.
Open and close the doors several times while you work your way around the edges just to make sure the doorframe hangs perfectly.
Unless you have a door set where the door is pre hung in the frame when it arrives on site then ideally the doors are hung before the architraves and door.
Then add the center door shims.
First check the floor for level.
Tighten the screws in the hinges at the edges of the doors and at the faces.