Part of our full network solutions offering, SubTerra is a range of high quality and easy-to-install modular access chamber systems manufactured from 100% recycled polypropylene.
Modular access chamber systems for cable management
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Complete Cable Protection and Access
Subterra Access Chambers form part of a fully integrated underground network solution designed to work seamlessly with our Apex range of composite covers and frames and cable protection systems. This modular approach ensures compatibility, structural integrity, and ease of installation across diverse site conditions.
By combining robust chamber construction with precision-engineered surface hardware and cable management, the system delivers enhanced durability, load performance, and lifecycle efficiency, ideal for telecoms, utilities, and highways applications.
See it in action
"I can honestly say that the way the chambers are designed and manufactured makes them so easy to put together. It works well, and the fact that the team has been so open to feedback from the people on the ground using the product is brilliant. Every process, whether it’s on site, in design or in manufacturing, can be refined to make it better but this is something that could be exceptional – from a sub-contractor perspective, I’ve even suggested having a designated team to work with this product at all times so I would definitely recommend it.” Clive Hewitt, General Foreman at Galliford Try
Flexibility Of Choice And Heavy-Duty Performance Combined
Subterra chambers offer a stackable, interlocking design for easy depth adjustment and fast installation, without compromising strength. For higher load applications, our pre-assembled chamber options provide enhanced compressive performance. From modular builds to heavy-duty solutions, Subterra delivers the full range of access chamber capabilities.
- 100% Recycled Polypropylene Made from 100% recycled material and fully recyclable at end of life
- 40-90t Varying vertical load resistance Designed to perform under heavy traffic and infrastructure without requiring structural backfill
- 50 kN/m² Tested to withstand lateral loads up to 50 kN/m² Ensuring stability against soil pressure and sidewall forces in buried environments
- 150mm Interlocking ring sections Chambers can be configured to custom depths and sizes using stackable modules, allowing flexible installation across varied site conditions.
Sustainable By Design
Subterra access chambers are manufactured using 100% recycled polypropylene. This high-grade recycled polymer is selected for its mechanical integrity, chemical resistance, and long-term durability, ensuring compliance with industry standards for underground infrastructure.
The chambers exhibit excellent structural performance under load, while contributing to reduced environmental impact through lower embodied carbon compared to virgin polymer alternatives.
Complete the Solution
Ridgiduct Utilities
Ridgiduct is a robust twin‑wall cable protection system available in colour‑coded options for power, lighting, gas, water, telecoms and utility applications.
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Composite Covers & Frames
Our comprehensive range of access covers and frames is designed to seamlessly complement our network solutions offering. Engineered for use primarily with the SubTerra Axess-PP and MCX chamber systems, the extensive Apex portfolio caters to a wide spectrum of loading requirements.
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Steel Recessed Covers & Frames
Apex Covers and Frames provide durable, secure access for underground chambers, with multiple sizes, materials and load classes for reliable, long‑lasting performance.
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Ductile Iron Covers & Frames
Apex Covers and Frames deliver durable, secure access for underground chambers, with multiple materials, sizes and load classes for long‑lasting, reliable performance.
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