Steel Trench Boxes
Trench work is one of the most dangerous jobs on a construction site, but it does not have to be. A Benchmark steel trench box puts a solid steel wall between your crew and the trench face, holding back loose and unstable soil if the walls let go. We stock steel trench boxes in a wide range of sizes and can build to your specifications. Every box comes with tabulated data stamped by a professional engineer, so you can show inspectors it is rated for your depth and soil. Excavation and underground utility contractors rely on Benchmark for trench shielding because we focus on quality and availability. Made-in-Canada shoring and road plate, in stock and ready to buy or rent.
How They Work?
What is a Trench Box?
A trench box, also called a trench shield, is made of two steel or aluminum side walls held apart by spreader pipes at each end. Crews work between the walls while they lay or repair sewer and water pipe, so if the trench collapses, the soil lands on the box instead of the workers.
When is a Trench Box Required?
In Canada, provincial occupational health and safety rules require a protective system such as shoring, sloping or a trench box once a trench reaches about 1.2 to 1.5 m (4 to 5 ft) deep, depending on the province. Shoring can also be needed to keep the surrounding soil from undermining nearby roads, buildings and utilities.
Are job built Trench Boxes Allowed?
No. Every trench box used on site must be backed by engineering, with tabulated data showing its depth and soil ratings. Keep that data on site and ready to show if an OHS officer inspects the job.
LONG LASTING
HEAVY-DUTY
LIGHT WEIGHT
MACHINE MATCHED
SMART CONNECT