Delivering Compliance Through Collaboration: A Class A Fire-Rated Decking System in Central London

In January 2025, a prestigious project in Central London required a fully compliant Class A fire-rated decking system for an outdoor terrace of approximately 100 square metres. To meet the brief, Wallbarn, AB Building, and ISW UK came together to deliver a seamless, start-to-finish solution — combining technical expertise, high-quality materials, and skilled installation.

A Collaborative Approach from the Start

The success of this project was built on collaboration. From the very beginning, Wallbarn worked closely with AB Building and ISW UK to ensure that every stage — from planning and estimating through to supply and installation — was handled with precision. The goal was simple: a fully compliant system that could be delivered efficiently, safely, and without unnecessary complexity.

Using detailed 3D scaled drawings, Wallbarn provided the client and contractors with a clear visualisation of the proposed decking layout. This ensured every component was correctly specified before installation began and gave each stakeholder complete confidence in the plan.

These visual tools offered key benefits:

• For the client: The 3D drawings illustrated exactly how the completed system would look, reinforcing trust in the design and materials.
• For the contractor: They supported efficient installation planning, minimising on-site uncertainties.
• For logistics and supply: Accurate material calculations ensured timely deliveries and precise resource allocation.

This early-stage alignment between all parties eliminated delays and miscommunication, paving the way for a smooth project delivery.

A Fully Compliant and Efficient Decking Solution

The decking system supplied was fully non-combustible, meeting the latest UK Class A fire safety standards. Wallbarn provided their MetalPad Ex fire-rated pedestals alongside the robust I-Plus aluminium joist system, while AB Building supplied high-quality ceramic boards from the porcelain decking range. This carefully selected combination ensured both exceptional safety performance and a premium visual finish.

The installation used only two fixings, making it simple yet highly effective:

• M8 Wing Nut Kit – for securely connecting pedestals to joists and joining joists at right angles or end-to-end.
• W Clip 60 – a hidden fixing that secures the boards discreetly, maintaining a precise 6mm drainage gap and delivering clean, symmetrical lines.

This intuitive connection method reduced installation time, ensured consistent alignment, and achieved a sleek, professional finish across the entire terrace.

From Removal to Rebuild

The process began with the careful removal and responsible disposal of the existing WPC decking, preparing the area for the new Class A-rated system. Materials were delivered on schedule and installed efficiently, with every stage managed by experienced professionals to maintain quality and full compliance.

Despite the logistical challenges often associated with central London projects, clear communication and detailed planning ensured steady progress and minimal disruption to the surrounding environment.

A Partnership That Delivers Results

This project is a strong example of how effective collaboration between manufacturers, suppliers, and installers can produce outstanding results. By combining Wallbarn’s engineering expertise, AB Building’s premium materials, and ISW UK’s installation precision, the team delivered a fully compliant, long-lasting, and visually striking outdoor space.

The finished terrace not only meets the highest fire safety standards but also offers exceptional durability and a refined aesthetic — demonstrating what can be achieved when every element is carefully considered.

When the right specialists work together, compliance, efficiency, and design excellence come together seamlessly — as proven by this standout decking project in the heart of London.