Hire – Enclosed Manhole Box Lower Extension
Product Description
Need edge-to-edge protection for deep sewer or stormwater pit works? The Enclosed Manhole Box – Lower Extension offers full-perimeter trench safety for projects where exposed pit edges pose a risk. Available in your choice of Heavy-Duty Steel or Lightweight Alloy, this modular system provides maximum trench protection without extra plates or panels.
Use it as the base of a fully enclosed shoring system—stackable with matching upper extensions to achieve your required depth.
Available Size Options
This product is available in multiple size options. Choose from:
- Height × Length (mm): Fixed-size panels (Select from the dropdown)
- Width (mm) – Fixed Strut: Selectable trench widths from outer panel face to outer panel face (Select from the dropdown)
- Material: Choose between Lightweight Alloy or Heavy-Duty Steel (Select from the dropdown)
Key Features
- Fully Enclosed Design: Eliminates exposed trench edges for increased safety
- Modular System: Stack with ASC Enclosed Upper Extensions for added depth
- Certified for Compliance: Tested to 136kPa (Alloy) and rated for trench safety
- Material Choice: Select between reinforced aluminium alloy or robust steel depending on your site and lifting capabilities
- QR Code Tracked: Each box is tagged and traceable for hire management
Specifications
- Material: Reinforced Aluminium Alloy or Heavy-Duty Steel
- Max Panel Pressure: 136kPa (Alloy)
- System: Modular enclosed shoring box (lower section)
Common Use Cases
- Deep manhole installations in residential or industrial areas
- Sewer and stormwater pits requiring full-perimeter trench protection
- Sites with high foot or vehicle traffic requiring enhanced safety
- Installations near schools, roads, or civil infrastructure zones
Pair With
Stack with our Enclosed Manhole Box – Upper Extension (Hire) for complete vertical coverage and deeper protection.
🔍 View: Safe Work Australia Model Code of Practice: Excavation work











