Manhole Box

A ground support system for forming a concrete manhole.

The Conquip Manhole Box is a simple to assemble, two sided trench lining support system designed to be installed by an excavator using the ‘dig and push’ technique, or by simply carrying out the excavation and then lowering each box into place.

The manhole boxes are available in a range of sizes: 2.5m, 3.5m and 4.0m external length. It is generally suitable for trench depths of up to 5.18m.

Quantity

Specification

ITEM PRODUCT CODE HEIGHT EXTERNAL LENGTH INTERNAL LENGTH WORKING WIDTH (Min - Max) MAXIMUM WEIGHT* LIMIT STATE DESIGN LOAD
Base Box 2500 TL103-00011 2560mm 2500mm 2180mm 1565-3465mm 2766kg 80.96kN/m²
Extension Box 2500 TL103-00012 1310mm 2500mm 2180mm 1565-3465mm 1592kg 80.96kN/m²
Base Box 3500 TL103-00007 2560mm 3500mm 3180mm 1565-3465mm 3266kg 57.83kN/m²
Extension Box 3500 TL103-00008 1310mm 3500mm 3180mm 1565-3465mm 1872kg 57.83kN/m²
Base Box 4000 TL103-00009 2560mm 4000mm 3680mm 2070-3470mm 3516kg 45.43kN/m²
Extension Box 4000 TL103-00010 1310mm 4000mm 3680mm 2070-3470mm 1972kg 45.43kN/m²
*Weight will be equal to or less than the weight stated depending on your strut configuration. Our team will provide more information on trench widths or working widths depending on requirements specified in your quote request.