Inside mount blinds are installed inside the window opening. Enter the exact size of the window opening NOT the size of the blind. The factory will make a small deduction from your width to allow space for the hardware operation.

Outside mount blinds are installed outside the window opening to trim, a wall, or a door. Enter the exact size of the blind you want to order. The factory will make no deductions.

Spacer Blocks are not required for the normal operation of this product.

This is for an outside mount only! Spacer blocks add clearance for the blind if the trim around your window interferes. Spacer blocks will add an extra 3/8" of depth.