Be careful not to damage it.
Measure for sliding door.
The average widths for three panel doors are nine feet and twelve feet.
To measure the height of a sliding patio door extend your tape measure vertically.
Go to your sliding glass door and take a measurement from the wall left to right of the door to the wall it is installed in.
Remove the slider door trim with a crowbar.
Pull out any.
Again depending on the style of your home measure from the header to the bottom of the door sill siding to the bottom of the door sill or edge of the stucco to the bottom of the door sill.
Hold a tape measure to the edge of the door and record its thickness.
Insert a utility knife around the door frame and break the silicone seal.
Do this across the bottom middle and top.
Ideally the door will cover 2 to 3 inches beyond the opening on each side.
These numbers should be close to the same but it can be helpful to know both of them.
Custom built sliding glass doors meet and or exceed these measurements.
Write down the measurement.
Measure this edge on the door frame known as the jamb as well.
How to measure for replacement sliding glass patio doors.
Write down the measurement.
The most common thickness is 1 75 inches 4 4 cm.
Measure vertically the same way from where the header meets the rest of the home to where the bottom sill ends.
The average widths for two panel doors are sixty inches seventy two inches and ninety six inches.
Cut away all the old silicone and paint attached to the door.
Move halfway down the opening and measure again.
You ll want to measure the width of the door at the center running your tape measure from siding to siding stucco to stucco brick to brick whatever material outlines the sides of your sliding door.
Measure from the top of the track at one end of the door down to the threshold on the ground with a tape measure.
For the height measure from the top of the bottom track into the top u channel see the diagrams below.
Using a tape measure begin at the left edge of the opening and measure straight across to the right edge.
Be sure to capture both width and height measurements.