INSTALLATION instructions INSTALLATION D D 1. The dimension of the opening must exceed the exterior dimension of the door frame by 32 mm (1 1/4”) in width and by 32 mm (1 1/4”) in height. 2. When installing, this product must be squared and levelled. 3. Wedge the frame (see sketch) with 3 wedges between the structure, the sill and the jambs, and one at the head. 4. Make sure the head, sill and jambs are straight. 5.
