⁷⁄₈ ” FE575/FE595 Door Preparation Instructions For Door With Existing Holes Measure Door Width If the door is thinner than 1 ³⁄₈ ” or thick er than 1 ³⁄₄ ”, then the lock will not fit properly on the door . 1 1 ³⁄₈ ” t o 1 ³⁄₄ ” Measure for Bac kset If existing bac kset is not 2 ³⁄₈ ” or 2 ³⁄₄ ”, t ...
