ANSI-ASC A14.4-2009, American National Standard Safety Requirements for Job-Made Wooden Ladders, establishes minimum requirements and recommendations intended to reduce personal injury risks when job-made wooden ladders are used for temporary access during construction and demolition work. The standard covers general requirements, related standards, definitions, materials, construction requirements, ladder installation, clearances, inspection and maintenance, and safe use practices.
This PDF is suited for contractors, safety managers, inspectors, construction supervisors, regulatory personnel, and organizations responsible for temporary access systems on job sites. It includes requirements for side rails, cleats, fasteners, ladder length and width, pitch, securing methods, landings, clearances, record keeping, and routine maintenance, along with tables and figures addressing lumber grades, rail sizing, cleat attachment, ladder setup, splices, and guarding details.
Application Scope: Applies to job-made wooden ladders used as temporary access or egress during construction or demolition operations where temporary stairs or ramps are not practical; it does not cover portable manufactured ladders, portable job-made ladders, permanent fixed ladders, or mobile-equipment ladders.
