Measure the opening width horizontally as shown below.
How do you measure for hinged screen doors.
Take three measurements one across the top middle and bottom of the door a b c.
Jot dot the number as the door s height.
The width of the door is important because it affects the weight of the door.
To get the thickness simply open the door and measure the inner edge where the lock is.
Try to be as accurate as possible.
Measure the height again from the sill to the underside of the door frame about 6 inches from the opposite doorjamb in case the frame isn t true.
Measure from the bottom of the sill to the underside of the top frame.
Hinged door step 1 extend the tape measure from the sill at the bottom of the inside of the door frame to the top inside of the exterior door trim.
Record the narrowest dimension.
A wider door will need more load bearing support for stability.
Make sure to place it about 6 inches 15 cm from the opposite door jamb just in case the frame isn t true.
The hinge height required is determined by the door thickness and the door width.
If your door sill is slanted measure to the lowest part of the sill that will rest beneath the screen door.
For example if the door is 1 3 8 inches thick and the width is no more than 32 inches the hinge height is 3 1 2 inches.
If you need to measure the rough opening meaning the wall around the door isn t fully finished you ll take the width by measuring from the 2 4 on the left to the one on the right.
Starting on the left side measure from the inside edge of trim c blue to the top of the door sill green where you d expect the screen door and sill to meet.