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Manhole Boxes

For rapid construction of manhole chambers and interceptors with each box being assembled and installed quickly and without the need for an operative to enter the unsupported excavation.

Manhole Box 3D Manhole Spindles 3D
  • Can be used in trenches up to 5.5m deep in conjunction with up to two top extenstion units
  • Five panel lenghts are available to suit all common pre-cast ring sizes.
  • Manhole boxes may be installed in either a pre-dug trench in stable ground, or by a progressive 'dig and push' method.
  • Handrail panels are available for this product.

Maximum panel pressure nust not be exceeded.

2.5m Long 3.0m Long 3.5m Long 4.0m Long 4.7m Long
Base Top Ext Base Top Ext Base Top Ext Base Top Ext Base Top Ext
To suit ring size (m) 1050/1200/1350 1350/1500/1800 1800/2100 2100/2400/2700 2700/3000
Plate Length (m) 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.7 4.7
Plate Height (m) 2.5 1.5 2.5 1.5 2.5 1.5 2.5 1.5 2.5 1.5
Plate Thickness (mm) 106 106 106 106 106 106 106 106 106 106
Overall Trench Width (m) 1.5-5.3 1.5-5.3 1.5-5.3 1.5-5.3 1.5-5.3 1.5-5.3 1.5-5.3 1.5-5.3 4.7 4.7
Typical Weight (Kg) 2430 1660 2710 1840 3025 2036 3272 2200 3450 2050
Distance Between Struts (m) 2.05 2.05 2.55 2.55 3.05 3.05 3.55 3.55 4.45 4.45
Strut Clearance Height (m) 1.5 - 1.5 - 1.5 - 1.5 - 1.5 -

* Weights are approximate and may vary with extensions used.
Note: 4.7m box uses fixed struts.