Precision-engineered modular fixed access ladder system


KATT is a range of precision-designed modular, fixed ladders, which provide safe vertical or incline access to the roof or between varying roof levels. KATT can be used with a cage or fall arrest systems in line with HSE’s hierarchy of control for working at height. It complies with the relevant BS EN ISO standards for ladders. Fabricated from structural aluminium, KATT ladders are not only lightweight, but corrosion resistant, so can be easily modified on site without compromising the lifespan of the system.

Designed to be different

Modular design

KATT ladders are configured to your exact specification, however, only approximate dimensions are required because the system can be modified safely on site.

Aluminium construction

Lightweight, durable with natural resistance to corrosion, so structural integrity is not compromised by on-site cutting or drilling.

Versatile solution

Can be used for either vertical or incline access, and are available with a fall arrest cage or fixings for a fall arrest system.

Safe and secure

Fully compliant with international standard for ladder heights BS EN ISO 14122:2016:4.

Easy installation

Each ladder is provided with all the necessary fixings. The lightweight aluminium components are delivered as a flat pack kit, which can be simply manhandled to the required location.

Designed for the user

KATT ladders feature wide, non-slip, ergonomic rungs for safety and ease of use.

Product specification

KATT modular access ladders are an extremely versatile range of fixed ladders, designed to ensure utmost safety when accessing rooftop environments. The range includes:

RL20 series - angled access ladders for heights up to 2m

RL30 series - vertical ladders for heights up to 2m

RL40 series - vertical ladders for heights over 2m

Product Installation

Each ladder is provided with all necessary fasteners and attachment hardware. By cutting the lower ladder body to the required length, the system can be built to suit exact site requirements.


Often, prefabricated ladders are delivered to site and the critical dimensions, or the spacing of fixing brackets, are incorrect. Then there are costs and time delays whilst the fabrication is adjusted. With the modular KATT ladder system, you simply build the kit to suit the site layout.