Description
WREKIN Tristar Grade A Surface Box – Multiple Size Options
The WREKIN Tristar Grade A Surface Box is a ductile iron access solution designed to provide consistent, secure access to underground services where durability and installation accuracy matter. With a uniform 100mm frame depth across all size options, the design supports stable bedding and effective load transfer, helping maintain alignment over time. Multiple clear opening sizes allow the surface box to be specified to suit service requirements without altering installation depth or detailing, simplifying specification across projects.
Specifications
| Product type | Wrekin Surface Box |
| Assembly type | Double Cover Surface Box |
| Primary material | Ductile iron |
| Standard | BS 5834 Grade A |
| Frame depth | 100mm |
| Available clear openings | 150x150mm, 225x225mm, 300x300mm |
| Badging options | Gas, Water, Unbadged |
| Product codes | DBT0A4/1515G, DBT0A4/2222G, DBT0A4/3030G, DBT0A4/1515, DBT0A4/2222, DBT0A4/3030, DBT0A4/1515W, DBT0A4/2222W, DBT0A4/3030W |
Key design features
The frame is designed with a consistent depth to support stable bedding across installations. The ductile iron construction provides resistance to impact and environmental exposure. Where configured as a Double Cover Surface Box, the twin cover design allows balanced lifting during inspection and maintenance.
Benefits
- Ductile iron construction supports long term durability.
- Uniform frame depth simplifies installation across projects.
- Multiple sizes allow accurate matching to service access points.
- Badging options support identification of underground services.
- Suitable for regular inspection and maintenance access.
Applications
This WREKIN Surface Box is used to provide access to utility services, inspection points, and cable loops in footpaths, verges, landscaped areas, and lightly trafficked locations. Where specified as a Double Cover Surface Box, it supports controlled lifting and balanced access during maintenance, making it suitable for installations requiring regular inspection without excessive surface disruption.
Explore the Range
Explore the full Wrekin surface box and manhole cover selection to view alternative sizes, load ratings, and access solutions for different site requirements.
Contact Us
For help selecting the correct Surface Box or confirming suitability for your application, contact our team via our contact page for expert advice and UK-wide supply.





