Measure the height of the rough opening from the floor or rough sill to the bottom face of the header.
How to measure french doors for replacement.
How to measure a rough opening for replacing french doors 1.
Remove the anchor screws holding the threshold in.
First the height of the door reveal the wall opening needs to be measured deducting 20 millimetres afterwards.
To measure for the height of the hinged french patio doors extend your tape measure vertically from one end of the door panel to the other.
Extend the tape measure vertically from the header to the bottom of the door sill siding to the bottom of the door sill or edge of stucco to the bottom of the door sill.
Remove any trim remaining in the opening from the previous door with a pry bar.
Be sure the capture both the height and width measurements of your sliding patio door or hinged french patio door.
Lift and remove the threshold from the bottom of the opening.
Measure the width of the rough opening from the inside faces of the side studs.
As an example you would round up a measurement of 79 5 inches to 80 inches.
The framing studs must be exposed to.
The height measurement is from the bottom sill to the top rail.
Enter the correct measurement in the worksheet on the right.
If you re worried that the door is warped or otherwise imperfect grab additional measurements from near either edge to see how they match up against your two center measurements.
With new buildings the fact that there are no doors or windows installed makes it easier to determine the measurements for the installation of a french door.
Measure from the bottom of the sill to the thickest part of the header.
Measuring the dimensions of french doors in new buildings.
If you re installing a prehung door in a rough opening.
To measure width measure across the center horizontally from one side of the door panel to the other.
Looking at the interior of your french patio doors measure the width.
Measure the width and height of your old door and round this number up to full inches.
Measure at the top middle and bottom of the opening and use the smallest dimension.
Do the same for the height of the door panel.
Add 1 1 4 to find the estimated unit size frame members typically measure 1 1 4.