Trench & Manhole Boxes

The LTW manhole boxes can be used for all areas of excavation support. Expert advice is available from qualified engineers and our drawing office staff are capable of dealing with the most complex or unusual of projects.

The LTW Mini Box is designed for medium duty work with a ground support pressure of 25kN/m2 maximum. Strut levels allow for pipes up to 600mm diameter to be installed. Base elements are 2.0m deep with 1.0m extensions. The internal dimension can be varied from 600mm to 2400mm LTW Standard Box system is designed to give a safe working load of 43kN/m2. Different sized spacers are available to give a range of internal widths from 800mm to 2400mm.

LTW Standard Manhole Boxes are designed to use the same parameters as the trench box. Supplied in three different lengths to suit available standard pre-cast manhole sections and can be supplied with 3400mm internal clear widths.

Key features

  • Simple to Assemble
  • Fabricated from High Grade steel to achieve minimum weight
  • Designed to comply with BS EN13331 Parts 1 & 2

Suitable for

  • All trench and manhole excavation supports


Ladder Access Platform

Ladder Access Platform

Our ladder access platform is used with excavation support systems. The system can be quickly and effectively clamped to trench boxes and trench sheets to provide a safe access platform for entry to the excavation which is compatible with either a steel or timber ladder.