FAQ Knowledge Articles

The sash will project forward from the frame 3/4" (3/4 glass) or 1" (1" glass) respectively as viewed form the exterior.  The interior projection from fully closed to fully open will be 2 1/4".

Note:  This projection dimension is based on the distance form the frame weather strip to the interior of the sash when opened.

For more information, see:
What is the Venting Picture window?