3m Light Duty Manhole Box

The Light Duty Manhole Box provides a quick and effective method of ground support for manhole excavations up to 3 metres deep when using a machine with limited lifting capacity. They can also be used for the installation of small tanks/vessels. Manhole boxes can be used as an alternative to trench sheets and hydraulic frames when the area is free from underground services.

  • Lightweight Panel Construction
  • Fixed Lengths Struts are supplied as standard
  • Maximum Lateral Earth Pressure : 20kN/m2
  • Top Extension Panels can be utilised for excavation depths up to 3 metres
External Manhole Box Size (m) Internal Dimension (mm) Length Of Return (mm) Base Top Extension Return / Panel Thickness (mm)
Height (m) Weight (t) Height (m) Weight (t)
3 2748 545 2 1100 1 614 60

Download Full User Guide


Contact Us

Head Office

  • T: 0845 003 8984
  • E: enquiries@proshore.co.uk
  • Bridge Works, Wakefield Road, Ossett, WF5 9AW

Opening Hours

  • Mon-Fri 7:30am-5:00pm