TS EN 131-1:2007+A1:2011

TS EN 131-1:2007+A1:2011 is a standard that defines the terminology used for ladders and sets out the general design characteristics and functional sizes for portable ladders. It establishes a common technical language for ladder products, helping users and manufacturers describe basic elements such as rungs, steps, support geometry and overall configuration in a consistent way. In the wider ladder family, this Part provides the foundational terms and dimensional concepts, while related requirements are covered in other parts of the EN 131 series.

A common technical vocabulary for portable ladders

The value of this standard lies in how it organizes ladder terminology and product types. In practical engineering and purchasing contexts, ladders may be straight, extendable, hinged or otherwise configured, and their dimensions strongly influence stability, handling and intended use. By defining the core language and general design features, the standard supports clearer communication across design, manufacturing and assessment activities.

What the scope includes and excludes

• Applies to portable ladders.
• Does not apply to step stools covered by EN 14183.
• Does not apply to ladders designed for specific professional use such as fire brigade ladders, roof ladders and mobile ladders.
• Addresses general design characteristics and functional sizes; it is not, by itself, the full set of product performance requirements.

For ladder products, clear terminology and dimensional definitions are important because small differences in geometry can change how a ladder is positioned, used and specified. This standard therefore serves as a common reference for the portable ladder category, while keeping specialist equipment and step stools outside its scope.