141 Arch Spreader

The United Rentals 141 Arch Spreader is a heavy-duty, high-clearance strut designed for use with light-duty steel and aluminium trench boxes. Engineered to maximise vertical space between the trench base and spreader underside, it supports efficient access for large-diameter pipe installations, boring pits, box culverts, and other deep excavation tasks requiring up to 2500mm of vertical clearance.

Compatible with the 3M-30 and 3M-60 Steel Trench Boxes, as well as the 4.2M-35 Aluminium Trench Box, the 141 Arch Spreader connects securely using a quick pin-and-clip system. Adjustable extension spacers allow for internal widths ranging from 1500mm to 6500mm, offering flexibility across a wide range of trench conditions.

Designed and manufactured in accordance with AS 4744.1: Shoring and Trench Lining Equipment and AS 4100: Steel Structures, this spreader ensures dependable performance and compliance on site.

Inclusions:

• 141 Arch Spreader End Post
• Bolts, Nuts and Washers required for installation
• Pin and clip connection system
• Extension spacers (as required per setup)
• Operating and safety instructions
• Professional Engineering advice available in-house

Options:

• United Rentals can provide custom designs to suit unique project needs.
• Steel or aluminium trench box hire (3M-30, 3M-60, 4.2M-35)

The 141 Arch Spreader is suited to a wide range of excavation and trenching applications where additional under-strut clearance is required. It’s commonly used in civil construction, utilities installation, and pipeline or sewer infrastructure works. The high-clearance design makes it ideal for boring pits, box culverts, twin pipes, and large-diameter pipe installations. Whether you're working on road and rail projects or general trenching works, the 141 Arch Spreader offers a safe and efficient solution for maximising vertical workspace.