Hire – Manhole Box Lower Extension – Knife Edge

Need extra reach and manoeuvrability in tight or angled excavations?

The Manhole Box Lower Extension – With Knife Edge offers full-depth trench protection with open-end access for smooth bucket clearance. Its integrated knife edge reduces soil disruption, while the modular design allows flexible setup for sewer, stormwater, or chamber installs.

Rated to 81kPa and available in Heavy Duty Steel or Lightweight Alloy, this hire solution gives you safety, access, and speed—without the custom build delay.

Available Options

This product is available in multiple configurations. Choose from:

• Material: Heavy Duty Steel or Lightweight Alloy (Select from the dropdown)
• Height × Length (mm): Multiple fixed panel combinations available (Select from the dropdown)
• Width (mm) – Fixed Strut: Selectable trench widths from outer panel face to outer panel face (Select from the dropdown)

Key Features

• Knife Edge Entry: Allows smooth placement with minimal ground resistance
• Open-End Design: Enables angled bucket movement and clear trench access
• Stackable System: Compatible with ASC Upper Extensions
• Certified Safe: Rated to 81kPa for trench safety compliance
• QR Tracked: Asset ID and certification tracking via QR code

Best Suited For

• Manhole construction at alignment bends or offset entries
• Sewer and stormwater pit excavation
• Trenching with confined access or angled digger approach
• Jobs needing open-end protection with easy visibility

Complete Your Setup

Pair this lower extension with our Manhole Box Upper Extension – (Hire) to extend depth while maintaining modular flexibility.

🔍 View: Safe Work Australia Model Code of Practice: Excavation work