Description The Access Chamber Box – 300mm Easy Liner Flat Packed (4 Panels) is a compact, modular chamber designed for underground service access where space, weight, and ease of installation matter. Made from recycled polypropylene, this unit provides a sustainable alternative to concrete or brickwork chambers. Each chamber includes four interlocking side panels, supplied flat-packed for ease of transport and quick on-site assembly. With an internal working size of 300mm x 300mm and 55mm wall thickness, it delivers excellent strength for a variety of ducted service applications, including water, electrical, and telecoms infrastructure. Ideal for utility providers, civil contractors, and groundwork teams, the 300mm Easy Liner system allows for quick deployment in confined areas without compromising long-term performance. Key Features • Compact and Flat Packed: Supplied as 4 interlocking side panels for efficient site handling and storage • Material: Tough recycled polypropylene for sustainability and resistance to environmental conditions • Dimensions: 300mm internal width and length with a strong 55mm wall thickness • Load Rating: A15 on its own, or up to B125 when encased in a concrete surround — suitable for pedestrian and light-duty vehicular zones • Modular Integration: Compatible with Easy Liner access covers and bases for a full chamber solution Specifications • Size: 300mm x 300mm internal dimensions • Wall Thickness: 55mm • Material: Recycled polypropylene • Load Rating: A15 standalone / B125 with concrete surround • Supplied As: Flat-packed 4-panel chamber (sides only) • Colour: Black Applications This 300mm modular chamber is ideal for use in: • Ducted water supply and drainage systems • Telecom and broadband fibre installations • Cable junction points in commercial and residential projects • Inspection chambers in restricted-space areas • Pedestrian access areas or small utility enclosures Its small footprint makes it especially suitable for tight service corridors, retrofit work, or small-scale trench runs. Why Choose Stanley John LTD At Stanley John LTD, we offer site-ready modular systems that prioritise sustainability, durability, and speed of installation. From our base in Newbury, Berkshire, we deliver across Berkshire, Hampshire, Wiltshire, Oxfordshire, Surrey, Greater London and more. All Easy Liner products are selected to meet the evolving needs of UK infrastructure teams. ➡ View our full access chamber systems range: Stanley John LTD Access Chamber Systems Order Now Order the Access Chamber Box – 300mm Easy Liner Flat Packed (4 Panels) today for fast installation and compact underground access. Buy online from Stanley John LTD.
