Page 9 - Trenching & Shoring E-Catalogue
P. 9
Box Systems / 8
Manhole Boxes
GAP’s manhole boxes are designed for use in conjunction with our manhole
shutters, allowing fast manhole construction without the need for a worker
to enter the unsupported excavation.
Clearance Max. Lateral Weight of
Manhole Box Between Int. Trench earth Max. Trench Weight of Extension
Type Struts Width Pressure Depth Base Box Box
Standard 2.0m 1864mm 1800mm 42kN/M2 4000mm 1312kg 814kg
Backhoe 2.5m 2300mm 2300mm 20kN/M2 2900mm 960kg 580kg
Standard 2.5m 2214mm 2300mm 55kN/M2 5400mm 2290kg 1525kg
Standard 3.0m 2714mm 2800mm 45kN/M2 5400mm 2550kg 1750kg
Standard 3.5m 3214mm 3300mm 40kN/M2 5400mm 3060kg 2100kg
Standard 4m 3800mm 3800mm 35kN/M2 5400mm 3850kg 2750kg
Standard 4.7m 4500mm 4500mm 35kN/M2 5400mm 4150kg 2950kg
Edge Protection for Boxes
A lightweight barrier system used to provide enhanced safety on site, helping to prevent falls into excavations. Often used
with GAP’s range of trench boxes, drag boxes and manhole boxes.
• Kickboards to prevent debris falling into excavations
• Not intended to restrain or support excessive loads
• Weight of boxes: 9.2kg to 40.5kg
• Size lengths: 2500mm, 3000mm & 3500mm
Edge Protection Type Panel Height
Standard Box 1000mm
Backhoe Box 1000mm
Standard Manhole Box (2.5m) 1000mm
Backhoe Manhole Box (2.5m) 1000mm
Drag Box (5.0m) 1000mm