No-sill appearance

Best suited to protected or interior openings where frame legs and counter joints can be carefully sealed.

Weathered sill

A raised or drained profile can provide a more deliberate water path for exposed exterior conditions.

Operation matters

Gas-strut, folding and sliding systems use different frame and track geometry at the counter.

Draw the section

Choose from the actual counter, wall, exterior drop, overhang, membrane and exposure—not photographs alone.

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

Is a no-sill window waterproof?

Do not assume it. Use documented system performance and project detailing for the exact exposure and configuration.