BOCA Compliant Stairs

The following Lapeyre egress and stair systems are in compliance with BOCA Building Code. Because individual municipalities may modify or tighten the requirements of the major codes (IBC, SBCCI, BOCA, etc), it is always recommended that local code officials review the dimensional prints provided by Lapeyre. See Lapeyre's Building Code Policy Statement for additional information.

Alternating Tread Stair

The 1999 National Building Code permits alternating tread stairs with a minimum projected tread of 5 inches and a minimum tread depth of 8.5 inches as a means of egress from mezzanines, roofs and various areas in penal facilities; exception as a means of egress from a mezzanine area not more than 250 sq. ft. not serving more than 5 occupants, shall have a minimum projected tread of 8.5 inches, minimum tread depth of 10.5 inches. (Section 1014.6.6 and 1027.0)

Industrial Stair (Uses Stair Model 01AA / 02AA)

Stair Type/Applications:
  • Industrial Equipment Access
  • Industrail Secondary Access
  • Fixed Industrail Stair
  • This Stair can be used only in F1 and F2 (Factory) or S (Storage) Occupancies.
  • This stair may not be used where an accessible stair is required.
  • 21" sphere rule
  • Open treads, open risers
  • 1014.3 Ex 4 allows a 36" wide stair if the whole building has < 50 occupants
  • The guard rail is allowed to also be used as a handrail. Therefore, the handrail does not need to be a separate rail from the guard rail.
  • Guards and Handrails may be combined into one rail with the height set at 42". (1022.2.2 Ex)
  • The baluster spacing is designed to comply with BOCA's 21" sphere rule and is adjustable within those guidelines.
  • Handrail not required if less than three risers. (1014.7 Ex 1)
  • Guards should not have an ornamental pattern that would provide a ladder effect (1021.3).
Design Specs:
  • Design Live Load 100#/SF (1014.9.1)
  • Design Concentrated Load 300#/SF (1014.9.1)
  • Stair design/features based on requirements listed in sections 1014, 1021, and 1022.