Manhole Boxes

Manhole boxes are designed to offer a quicker and easier method of supporting a four-sided excavation, such as the construction of a manhole chamber, rather than using trench sheets and hydraulic manhole brace frames.

The 2.5m and 3m Light Duty Manhole Boxes are designed specifically for use with smaller excavators that have a limited lifting capacity and can be utilised in excavations up to 3 metres deep, as can the 2m Standard Manhole Box.

The Standard Manhole Boxes (with the exception of the 2m Manhole Box) are designed for use with larger excavators and can be utilised in excavations up to 5.4m deep.

Our manhole boxes come in a range of sizes and weights as shown in the tables below.

2m Manhole Box

Pro Shore’s User Guide aims to provide all the necessary information required to allow for safe, effective and well-­‐ informed use of Pro Shore’s 2m Square Manhole Box. The guide will cover aspects of practical handling, assembly, installation and systems of best practice. Aspects of the guide will assume general competence within the field, however item specifics such as design components and lifting points for safe slinging will be comprehensively described.

The Manhole Box’s overall aim is to provide an engineered Shoring solution for works that are being undertaken using small excavators, which do not have the lifting capacity to work with heavier trench box systems.

Operatives must ensure that guidance is followed for safe slinging. Although general competence is assumed, Operatives should ensure that the length and selected width of the box is sufficient for the intended works and should be aware that Pro Shore’s Manhole Boxes are not suitable for use in water bearing soils or excavations containing frequent services. Pro Shore’s Manhole Boxes should only be used under the aforementioned circumstance and is not recommended for any other operative purpose.

Manhole Boxes

Length (M)

Height (M)

Length of End Return (mm)

Panel Thickness (mm)

Weight (KG)

Clearance beneath bottom strut (mm)

Distance between struts (mm)

Standard 2m  Base

2.1

2

530

60

1300

1155

1870

Standard 2m Top

2.1

1

530

60

850

N/A

1870

 

2.5m 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

Manhole Boxes

Length (M)

Height (M)

Length of End Return (mm)

Panel Thickness (mm)

Weight (KG)

Clearance beneath bottom strut (mm)

Distance between struts (mm)

Light Duty Base 2.5m

2.44

2

545

60

1004

1200

2312

Light Duty Top 2.5m

2.44

1

545

60

556

N/A

2312

 

2.5m Manhole Box

Pro Shore’s User Guide aims to provide all the necessary information required to allow for safe, effective and well informed use of Pro Shore’s Manhole Box. The guide will cover aspects of practical handling, assembly, installation and systems of best practice. Aspects of the guide will assume general competence within the field, however item specifics such as design components and lifting points for safe slinging will be comprehensively described.

The Manhole Box’s overall aim is to provide an engineered trench support solution for trenches up to 5.4m deep.

Operatives must ensure that guidance is followed for safe slinging. Although general competence is assumed, Operatives should ensure that the length and selected width of the box is sufficient for the intended works and should be aware that Pro Shore’s Manhole Boxes are not suitable for use seawater applications. Pro Shore’s Manhole Boxes should only be used under the aforementioned circumstance and is not recommended for any other operative purpose.

Manhole Boxes

Length (M)

Height (M)

Length of End Return (mm)

Panel Thickness (mm)

Weight (KG)

Clearance beneath bottom strut (mm)

Distance between struts (mm)

Light Duty Base 2.5m

2.44

2

545

60

1004

1200

2312

Light Duty Top 2.5m

2.44

1

545

60

556

N/A

2312

 

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

Manhole Boxes

Length (M)

Height (M)

Length of End Return (mm)

Panel Thickness (mm)

Weight (KG)

Clearance beneath bottom strut (mm)

Distance between struts (mm)

Light Duty Base 3m

2.94

2

545

60

1100

1200

2812

Light Duty Top 3m

2.94

1

545

60

614

N/A

2812

 

3m Manhole Box

Pro Shore’s User Guide aims to provide all the necessary information required to allow for safe, effective and well-informed use of Pro Shore’s Manhole Box. The guide will cover aspects of practical handling, assembly, installation and systems of best practice. Aspects of the guide will assume general competence within the field, however item specifics such as design components and lifting points for safe slinging will be comprehensively described.

The Manhole Box’s overall aim is to provide an engineered trench support solution for trenches up to 5.4m deep.

Operatives must ensure that guidance is followed for safe slinging. Although general competence is assumed, Operatives should ensure that the length and selected width of the box is sufficient for the intended works and should be aware that Pro Shore’s Manhole Boxes are not suitable for use seawater applications. Pro Shore’s Manhole Boxes should only be used under the aforementioned circumstance and is not recommended for any other operative purpose.

Manhole Boxes

Length (M)

Height (M)

Length of End Return (mm)

Panel Thickness (mm)

Weight (KG)

Clearance beneath bottom strut (mm)

Distance between struts (mm)

Standard 3m Base

3

2.5

600

100

2650

1500

2680

Standard 3m Top

3

2.5

600

100

1400

N/A

2680

 

3.5m Manhole Box

Pro Shore’s User Guide aims to provide all the necessary information required to allow for safe, effective and well-informed use of Pro Shore’s Manhole Box. The guide will cover aspects of practical handling, assembly, installation and systems of best practice. Aspects of the guide will assume general competence within the field, however item specifics such as design components and lifting points for safe slinging will be comprehensively described.

The Manhole Box’s overall aim is to provide an engineered trench support solution for trenches up to 5.4m deep.

Operatives must ensure that guidance is followed for safe slinging. Although general competence is assumed, Operatives should ensure that the length and selected width of the box is sufficient for the intended works and should be aware that Pro Shore’s Manhole Boxes are not suitable for use seawater applications. Pro Shore’s Manhole Boxes should only be used under the aforementioned circumstance and is not recommended for any other operative purpose.

 

Manhole Boxes

Length (M)

Height (M)

Length of End Return (mm)

Panel Thickness (mm)

Weight (KG)

Clearance beneath bottom strut (mm)

Distance between struts (mm)

Standard 3.5m Base

3.5

2.5

600

100

3000

1500

3300

Standard 3.5m Top

3.5

2.5

600

100

2100

N/A

3300

 

4m Manhole Box

Pro Shore’s User Guide aims to provide all the necessary information required to allow for safe, effective and well-informed use of Pro Shore’s Manhole Box. The guide will cover aspects of practical handling, assembly, installation and systems of best practice. Aspects of the guide will assume general competence within the field, however item specifics such as design components and lifting points for safe slinging will be comprehensively described.

The Manhole Box’s overall aim is to provide an engineered trench support solution for trenches up to 5.4m deep.

Operatives must ensure that guidance is followed for safe slinging. Although general competence is assumed, Operatives should ensure that the length and selected width of the box is sufficient for the intended works and should be aware that Pro Shore’s Manhole Boxes are not suitable for use seawater applications. Pro Shore’s Manhole Boxes should only be used under the aforementioned circumstance and is not recommended for any other operative purpose.

 

Manhole Boxes

Length (M)

Height (M)

Length of End Return (mm)

Panel Thickness (mm)

Weight (KG)

Clearance beneath bottom strut (mm)

Distance between struts (mm)

Standard 4m Base

4

2.5

930

100

3560

1500

3760

Standard 4m Top

4

1.5

930

100

2500

N/A

3760

 

4.7m Manhole Box

Pro Shore’s User Guide aims to provide all the necessary information required to allow for safe, effective and well-informed use of Pro Shore’s Manhole Box. The guide will cover aspects of practical handling, assembly, installation and systems of best practice. Aspects of the guide will assume general competence within the field, however item specifics such as design components and lifting points for safe slinging will be comprehensively described.

The Manhole Box’s overall aim is to provide an engineered trench support solution for trenches up to 5.4m deep.

Operatives must ensure that guidance is followed for safe slinging. Although general competence is assumed, Operatives should ensure that the length and selected width of the box is sufficient for the intended works and should be aware that Pro Shore’s Manhole Boxes are not suitable for use seawater applications. Pro Shore’s Manhole Boxes should only be used under the aforementioned circumstance and is not recommended for any other operative purpose.

Manhole Boxes

Length (M)

Height (M)

Length of End Return (mm)

Panel Thickness (mm)

Weight (KG)

Clearance beneath bottom strut (mm)

Distance between struts (mm)

Standard 4.7m Base

4.7

2.5

930

100

3850

1500

4460

Standard 4.7m Top

4.7

1.5

930

100

2660

N/A

4460


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