Chicago, IL Building Safety: Door Locking Hardware (2026)

The door must be equipped with a deadbolt lock with at least a one-inch (25.4

mm) saw-resistant bolt projection, or with a rim-mounted deadbolt lock or vertical drop deadbolt lock providing equivalent security. Every such lock must be operable from the outside by a key or keypad and from the inside by a turnpiece, handle, or knob which does not require a key or any special knowledge to operate. 14X-4-403.3.1.2 Security collar. Every lock cylinder which projects beyond the exterior face of the door or can be accessed from outside the dwelling unit by gripping tools must be equipped with a metal ring or plate protecting the otherwise-exposed portion of the cylinder lock from wrenching, prying, pulling, or cutting by attack tools and a guard plate designed to protect the cylinder from removal or drilling. (Amend Coun. J. 2-19-20, p. 14473, Art. V, § 13) 14X-4-403.3.1.3 Hinges. Door hinges which can be accessed from outside the dwelling unit must be equipped with nonremovable hinge pins or jam pins. (Amend Coun. J. 2-19-20, p. 14473, Art. V, § 14) 14X-4-403.3.1.4 Viewing device. The door must be equipped with a device which allows a person inside the dwelling unit to view a person immediately outside the door without opening the door. A viewing device may be a peephole with a 160-degree (2.8 rad) field of view, a window, or any other device which accomplishes the purpose of a viewing device without affecting the fire-resistive rating of the door, walls, or any