How to measure
Measure twice, order once
All you need is a tape measure. Measure down to the nearest 1/16".
You have an old screen
Lay the undamaged screen on a flat surface.
- 1
Frame thickness
Standard sizes are 5/16", 3/8", and 7/16". Make sure it fits your window channel.
- 2
Height
Measure edge to edge, top to bottom. Never measure across the middle of the frame.
- 3
Width
Measure edge to edge, left to right. Never measure across the middle.
No screen at all
Open the window and find the U-channel where the screen sits.
- 1
Length
Set the tape inside the U-channel and measure up, keeping the tape flat. If it won't fit in the channel, measure to the window frame edge and subtract 1/16".
- 2
Width
Set the tape in the channel and measure across. Same rule: subtract 1/16" if measuring to the frame edge.
