During fire door inspections clearance issues generally are one of the major non-complaint deficiencies that a facility has to address. Our Fire Door Shims are REMOVABLE, RESTICKABLE and STACKABLE. Simply place them behind the hinge to push door towards the strike or to pull away from strike. You’ll shim doors in less than a minute. Our Fire Door Shims are only 1/16 inch thick and can be applied to any fire rated door. The instruction below show how to apply the shims to achieve the correct clearance for your fire doors.