Structural stairs

GRP Structural Stair Treads

What are GRP Structural Stair Treads?

Designed, developed and manufactured by our partners, Dura Composites, Dura Slab Structural Stair Treads are a quick and simple solution for both new build footbridges and essential staircase refurbishment works.

Cost Effective

High footfall can take a toll on stairs and walkways, reducing the safety of the flooring. Replacements are often costly and time consuming, but GRP structural stairs are the ideal solution to combat these concerns.


High Strength

Dura Slab Structural Stair Treads overcome the problems associated with traditional materials such as wood. The product is manufactured in pultruded GRP, making it lightweight, high strength, anti-slip, non-corrosive and non-conductive, prioritising the safety of high footfall environments.

Quick Installation

With an in-built fall to assist with drainage, pooling on the stair surface is reduced. As a single unit construction with a built-in riser, installation is very quick, reducing the overall costs as well as limiting disruption to end users.


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  • Thickness: 65mm
  • Span: Up to 2.1m clear open span

The product allows for a 10mm adjustment in each case for easy replacement of degraded timber.

Read more about our story


Dura Grating Stair Treads are made from d2 Dura Grating, a lightweight yet durable and hard wearing open mesh grating. With a 45mm mini mesh, Dura Grating Stair Treads are around 30% stronger than other manufacturers’ standard 38mm mesh grating.

The 45mm hole size meets the requirements of the 20mm European Ball Falling Test, limiting the risk of items dropping through the holes and potentially injuring people or delaying works.

If an underlying stair structure is sound, but potential slip hazards are still a risk, gritted non-structural stair covers are likely the ideal solution.

All treads feature yellow gritted nosings with a durable full angle profile.

Cost Effective Solution: 

Dura Structural Stair Treads can be easily fixed into position thanks to their single unit construction which speeds up installation times, reducing costs and limiting disruption.