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