Grifform Innovations® Window Sill Systems are available in two styles. Our window sills feature a soft thermoform design and come in six radius front edge heights, 1½", 2", 2½", 3”, 3½" and 4". The depth are in increments of 2” starting at 6” from the front wall face back to the window. Special depths are cut to specifications. We produce 96” lengths using ¼” or ½” material. Our ¼” sills are prepared with subbase material and structural foam factory mounted and ready for fitting. For installation Grifform Innovations® Window Sill Systems has a patent pending Installation Fixture which allows the installer to cut the necessary wing return as required for either 1” radius drywall corners or square corners. The return is then miter folded and glues to the wing.

Prices provided are estimated MSRP.
Prices and availability are subject to change at any time without notice.