THE VISUAL MEASURING GUIDE
See the opening.
Know where to measure.
Choose a window. Follow the tape.
Try the measuring points yourself.
What’s in the wall?
11 opening types · scroll →01 / WOOD OPENING
Wood frame / wood-out
INTERIOR ELEVATION
Measuring lineIllustrated example · not to scale
01 / 06
Start with what stays.
01
The opening you see.
02
The space the frame needs.
03
The size you order.
The diagrams teach the measuring references. Use the exact product’s instructions to turn verified readings into an order.