141 Arch Spreader

Technical Specifications

Specification	Detail
Product Type	High Clearance Strut – 141 Arch Spreader
Clearance	Clearance 2175mm (Steel Trench Boxes) / 2620mm (Aluminium Trench Box)
Internal Widths	1500mm – 6500mm
End Post Weight	279kg
Section Sizes	250mm – 2500mm beam lengths available
Section Weights	67kg (AS250) – 324kg (AS2500)
Accessories	141 Arch Spreader Pin & Clip, bolts, nuts, washers
Standards Compliance	AS 4744.1, AS 4100

141 Arch Spreader

Description

The 141 Arch Spreader from United Rentals (formerly Shore Hire) is a heavy-duty, high-clearance strut designed for use with our range of light duty steel and aluminium trench boxes. Engineered to maximise the vertical height between the base of the excavation and the underside of the arch spreader, it provides safe and efficient clearance for large-diameter pipe installation, boring pits, box culverts, and similar applications. With quick connection to 3M-30, 3M-60 Steel Trench Boxes and the 4.2M-35 Aluminium Trench Box, it offers flexible trench support where working room is critical.

Certified to AS 4744.1 and AS 4100 standards, it delivers reliable, compliant support for complex shoring applications.

Features

Provides 2175mm clearance on 3M-30and 3M-60 Steel Trench Boxes, and 2620mm clearance on 4.2m-35 Aluminium LD Trench Boxes.
Adjustable to 6500mm max. internal width, meeting a wide range of site requirements.
Pin-and-clip connection allows fast and safe installation.
Manufactured from 350 grade high-strength steel, compliant with AS 3679 and AS 1544 weld standards.
Designed in accordance with AS 4744.1 Shoring and Trench Lining and AS 4100: Steel Structures.

Suited For

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.