Lenexa, KS Building Safety: Door Locking Hardware (2026)

The City of Lenexa, Kansas, adds Section 1010.4 to the International Building Code through Section 4-8-A-19. Its stated purpose is to set minimum standards that incorporate physical security so dwelling units resist unlawful entry, and it applies to all new structures and to alterations, additions and repairs as stipulated in the International Existing Building Code. The rules reach every swinging door that gives access into a dwelling unit of a residential building or an attached garage, including the door from the garage into the dwelling, but not vehicular access doors.

The hardware standard is in 1010.4.4. Locks must include a single cylinder deadbolt with a minimum projection of one inch that penetrates at least three-fourths inch, a twist-resistant, tapered hardened steel cylinder guard, and a bolt housing of single piece construction. Strike plates must be at least 18 gauge metal with four offset screw holes, attached to wood with screws of not less than three inches that penetrate at least one inch into the nearest stud. Hinges on exterior swinging doors take at least two 3 inch screws penetrating at least one inch into the wall structure, and out-swinging doors need a mechanical interlock so the door cannot be removed from outside. Main entry doors must let the occupant see outside without opening the door, through a viewer with a field of view of at least 180 degrees or through windows or view ports.

The door itself is regulated too. Exterior wood doors must be solid core at least 1-3/4 inches thick, steel doors at least 24-gauge, and fiberglass doors need a skin of at least one-sixteenth inch with reinforcement at the deadbolt. The inactive leaf of double doors needs flush bolts with at least one inch of engagement, and sliding glass doors need a secondary locking device, either a metal pin or a surface mounted bolt. Door frames must be installed before the rough-in inspection. The enforcing authority can approve an alternate material or method that is at least equivalent in burglary resistance and safety (1010.4.7).