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 the MetalPad Ex adjustable pedestals and I-Plus aluminium joists, while AB Building supplied the ceramic ExaDeck boards — a combination that delivers both safety and style.

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

• M8 Wing Nut Kit – for 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 perfectly symmetrical lines.

This intuitive connection method reduced installation time, ensured consistent alignment, and achieved a clean, professional finish.

From Removal to Rebuild

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

Despite the project’s logistical constraints, careful coordination ensured timely progress and minimal disruption to the surrounding environment.

A Partnership That Delivers Results

This project exemplifies how strategic collaboration between manufacturers, suppliers, and installers can produce exceptional outcomes. By uniting Wallbarn’s engineering expertise, AB Building’s high-quality decking 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 achieves a premium aesthetic and durable performance — demonstrating the power of partnership in modern construction.

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