TS EN 131-1+A2

TS EN 131-1+A2 is the European standard that defines the terms, types and functional sizes for ladders. It provides a common technical language for the general design characteristics of portable ladders intended for both professional and non-professional use, helping to distinguish ladder categories consistently across product descriptions and technical documentation.

How ladder terminology is organised

This standard focuses on the basic naming and classification of ladder forms so that single-section, multi-section, folding and other common portable ladder configurations are understood in the same way. In general technical practice, terminology standards reduce ambiguity in catalogues, manuals and conformity-related communication, because ladder type, configuration and geometry are central to correct selection and intended use.

Where the standard begins and ends

• Applies to portable ladders designed for general professional and non-professional use.
• Does not apply to portable ladders designed and limited by their instructions for a specific professional use only.
• Directs users to EN 131-4 for multiple hinge joint ladders.
• Directs users to EN 131-6 for telescopic ladders.
• Directs users to EN 131-7 for mobile ladders with platforms.
• Identifies EN 14183 for step stools, EN 61478 for ladders used near high-voltage installations, and EN 50528 for work near low-voltage electrical installations.

The phrase functional sizes points to the dimensional features that govern how a ladder fits, reaches and is positioned in use. In general engineering terms, this includes key measurements such as length, width and spacing relationships that affect access and configuration. The standard therefore serves not only as a vocabulary reference but also as a dimensional framework for ladder design.

This updated A2 edition sits within the EN 131 series as a foundational reference for ladder terminology and size-related definitions.