This entry is the finished width of the curtain from edge to edge. The maximum width that will roll nicely and fasten securely is 110 inches. If a larger width is entered, the app will reduce it to 110 inches. The curtain’s edge should extend at least 7/8 inch on each side to overlap the screen framing. If multiple curtains are side by side leave at least 1 inch gap between adjacent curtains. The sides of the curtain will be secured with a twist lock fastener which must be installed in a solid surface, usually in the mullion (vertical separator) of the opening. The twist lock fastener will require at least 7/8 inch of surface area to be installed. If your mullion is smaller than 2-¾ inches, which accommodates two curtains, (7/8” + 1” + 7/8” = 2-¾”) use the Extension Plate for Twist Lock Fasteners Item #123763 from Sailrite. These plates will allow the twist lock fastener to work with side-by-side panels with a mullion that is less than 2-¾ inches, but even with the plates, side-by-side panels require at least 1-¼ inches of mullion.

This entry is the finished length of curtain from the top of the awning track’s flanged edge to the bottom edge of the curtain, where the PVC rod is inserted. We recommend the bottom edge of the curtain overhangs the bottom framing of the screen window by at least 1 inch. Keep in mind that when the curtain is rolled all the way up the roll will hang down 6 or more inches, depending on the overall length of the cutrain. Because of that fact installing the awning track higher up on your screen’s framing or siding is often preferred. The awning track at the top of the curtain will require a solid surface (framing/siding) of at least 1-¼ inches to secure the track down with screws.