Clear opening

A gas-strut sash can clear the full frame; folding panels leave a stack at one or both sides.

Exterior and side clearance

Gas-strut windows project outward and overhead. Folding windows need side parking and track space.

Glass and hardware

One broad sash concentrates glass weight on hinges and struts, while folding systems distribute the span across multiple panels and carriers.

Best fit

Choose from the actual opening, service pattern, clearances, exposure, screen and supported configuration.

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 is easier to operate?

A correctly balanced gas-strut sash and a correctly adjusted folding system can both operate smoothly. Size, reach, panel count and hardware determine effort.