Rough opening

The structural opening is usually measured between framing or prepared masonry before the unit is installed.

Unit size

The outside frame dimensions depend on the exact system, receptor, flange, sill and required installation clearance.

Clear opening

The usable opening is reduced by frame, tracks, panels, parked stacks, handles or sashes even when the rough opening is unchanged.

Counter relationship

Counter thickness, return, overhang and exterior drop can change sill details and the usable transfer path.

Turn the guide into a real opening schedule.

Keep every dimension, option, pressure, document, and delivery note connected to the same opening ID.

Start the configuration

Questions about this topic

Which dimension should appear on the quote?

Show the entered dimension and its type, then list proposed unit and clear-opening dimensions separately when they are available.