WREKIN D400 Surface box 445 x280 x 100 D/Tri Highway

Description

WREKIN D400 Surface Box 445x280x100 D/Tri Highway – DBT0D4/4428/KT

The Wrekin Tristar D400 Surface Box (DBT0D4/4428/KT) is a heavy-duty ductile iron access solution designed for highway and trafficked environments. With a 445mm x 280mm clear opening and a 100mm frame depth, this 445×280 surface box provides stable, long-term access to underground services beneath carriageways and service roads. Its robust frame design supports effective load transfer into surrounding bedding, helping maintain alignment and surface integrity under repeated vehicle loading.

Specifications

Key design features

The frame design helps distribute loads vertically into the surrounding bedding. A three point seating arrangement supports stable positioning under vehicle loading. Indexed corners assist with correct installation alignment. The ductile iron construction supports long term durability in highway environments.

Benefits

• Suitable for installations exposed to regular vehicle traffic.
• Ductile iron construction provides resistance to impact and wear.
• Stable seating helps limit movement under repeated loading.
• Frame design supports consistent load transfer into bedding.
• Available with unbadged or FH badging options.

Applications

This D400 Surface box is specified for utility access in highways, carriageways, industrial estates, service roads, and commercial forecourts. It is suited to locations where regular vehicular traffic is present and a reliable, compliant access solution is required without compromising surface performance.

Explore the Range

To view alternative sizes, frame depths, and load-rated access solutions, explore the full Wrekin range of surface boxes and manhole covers suitable for highway and utility installations.

Contact Us

If you need help confirming suitability or selecting the correct D400 Surface box for your project, contact our team via our contact page for expert technical advice and dependable UK-wide supply.