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Manhole Covers

Professional Building Supplies stock a wide range of steel, plastic and cast and ductile iron manhole covers in a number of shapes and sizes. Please note that most modern covers will not fit into old frames – it is much easier and very much safer to remove the old frame entirely and fit the new cover and frame as a complete unit. 

 

New Build Installations

Almost all manhole covers fitted in new build installations are installed onto polyropylene inspection chambers. Whilst most chambers are round, the cover that fits over them can be round, square or rectangular. Recessed covers for block paving or screed that fit directly onto plastic inspection chambers are also now very popular, and these are available in a range of sizes.

 

Replacing Broken Manhole Covers

All manhole covers, regardless of the manufacturer, are measured by the clear opening size. For example, if you have measured your broken cover as being 26” x 20”, you will need a 600mm x 450mm manhole cover (24” x 18”). Unless your broken cover is relatively new it is very unlikely that a new cover will fit your old frame – you will be much better advised to break out the old frame and fit the new frame that comes with our cover. It will be much stronger and safer and will last much longer. The only additional items you are likely to need for this job are a spirit level and a small bag of sand and cement.

 

Loading of Manhole Covers

A cover that is rated 2.5 tonne is for pedestrian use only.

A 5 tonne cover will support a slow moving wheel load of 1.25 tonnes, and is especially recommended for domestic driveway applications.

A 10 tonne cover will support a slow moving wheel load of 2.5 tonnes, and is recommended for restricted access and service areas.

A 17 tonne cover will support a slow moving wheel load of 4.25 tonnes, and will take a small rigid commercial vehicle.

Covers with up to 38 tonne loadings are also available for heavy industrial applications.

 

Forklifts and Manhole Covers

Forklifts have smaller diameter tyres and a smaller contact area than standard rod going vehicles. This, coupled with the solid tyres and minimal suspension means that they apply a much greater load than a 10 tonne lorry. Professional Building Supplies are able to supply a range of 40 tonne covers for use in typical forklift loading areas. Please contact us for further details.

Professional Building Supplies are one of the UK’s leading underground drainage suppliers. Check out our range, which is BS approved and is fully compatible with our soil pipe system.

We stock a wide range of steel, plastic and cast and ductile iron manhole covers in a number of shapes and sizes. Please note that most modern covers will not fit into old frames – it is much easier and very much safer to remove the old frame entirely and fit the new cover and frame as a complete unit. Read more about Manhole Covers

Almost all manhole covers fitted in new build installations are installed onto polyropylene inspection chambers. Whilst most chambers are round, the cover that fits over them can be round, square or rectangular. Recessed covers for block paving or screed that fit directly onto plastic inspection chambers are also now very popular, and these are available in a range of sizes.

All manhole covers, regardless of the manufacturer, are measured by the clear opening size. For example, if you have measured your broken cover as being 26” x 20”, you will need a 600mm x 450mm manhole cover (24” x 18”). Unless your broken cover is relatively new it is very unlikely that a new cover will fit your old frame – you will be much better advised to break out the old frame and fit the new frame that comes with our cover. It will be much stronger and safer and will last much longer. The only additional items you are likely to need for this job are a spirit level and a small bag of sand and cement.

A cover that is rated 2.5 tonne is for pedestrian use only. A 5 tonne cover will support a slow moving wheel load of 1.25 tonnes, and is especially recommended for domestic driveway applications. A 10 tonne cover will support a slow moving wheel load of 2.5 tonnes, and is recommended for restricted access and service areas. A 17 tonne cover will support a slow moving wheel load of 4.25 tonnes, and will take a small rigid commercial vehicle. Covers with up to 38 tonne loadings are also available for industrial applications.

Forklifts have smaller diameter tyres and a smaller contact area than standard rod going vehicles. This, coupled with the solid tyres and minimal suspension means that they apply a much greater load than a 10 tonne lorry. Professional Building Supplies are able to supply a range of 40 tonne covers for use in typical forklift loading areas. Please contact us for further details.

Professional Building Supplies are one of the UK’s leading underground drainage suppliers. Check out our range, which is BS approved and is fully compatible with our soil pipe system.

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Steel Manhole Cover 2.5 Tonne 600mm x 450mm

Steel Manhole Cover 2.5 Tonne 600mm x 450mm

From 6 reviews

Code: PC6AG Size: 600mmx 450mm Opening Brand: ClarkDrain

£19.18 ex.VAT
£19.18 ex.VAT
From 6 reviews

Steel Manhole Cover 5 Tonne 600mm x 450mm

Steel Manhole Cover 5 Tonne 600mm x 450mm

From 4 reviews

Code: PC6BG Size: 600mmx 450mm Opening Brand: ClarkDrain

£22.93 ex.VAT
£22.93 ex.VAT
From 4 reviews

Steel Manhole Cover 10 Tonne 600mm x 450mm

Steel Manhole Cover 10 Tonne 600mm x 450mm

From 3 reviews

Code: PC6CG Size: 600mmx 450mm Opening Brand: ClarkDrain

£30.94 ex.VAT
£30.94 ex.VAT
From 3 reviews

Steel Manhole Cover 17 Tonne 600mm x 450mm

Steel Manhole Cover 17 Tonne 600mm x 450mm

From 2 reviews

Code: PC6DG Size: 600mmx 450mm Opening Brand: ClarkDrain

£44.54 ex.VAT
£44.54 ex.VAT
From 2 reviews

Steel Manhole Cover 2.5 Tonne 450mm x 450mm

Steel Manhole Cover 2.5 Tonne 450mm x 450mm

From 1 reviews

Code: PC5AG Size: 450mmx 450mm Opening Brand: ClarkDrain

£15.72 ex.VAT
£15.72 ex.VAT
From 1 reviews

Steel Manhole Cover 5 Tonne 450mm x 450mm

Steel Manhole Cover 5 Tonne 450mm x 450mm

Code: PC5BG Size: 450mmx 450mm Opening Brand: ClarkDrain

£20.63 ex.VAT
£20.63 ex.VAT

Steel Manhole Cover 10 Tonne 450mm x 450mm

Steel Manhole Cover 10 Tonne 450mm x 450mm

From 1 reviews

Code: PC5CG Size: 450mmx 450mm Opening Brand: ClarkDrain

£40.11 ex.VAT
£40.11 ex.VAT
From 1 reviews

Manhole Cover Cast Iron 1.5T 450mm With Circular Polypropylene Frame

Manhole Cover Cast Iron 1.5T 450mm With Circular Polypropylene Frame

Code: CLKS1657 Size: 450mm Diameter Opening Brand: ClarkDrain

£38.50 ex.VAT
£38.50 ex.VAT

Manhole Cover Cast Iron 12.5T 450mm With Circular Polypropylene Frame

Manhole Cover Cast Iron 12.5T 450mm With Circular Polypropylene Frame

From 1 reviews

Code: CLKS1657KMB Size: 450mm Diameter Opening Brand: ClarkDrain

£54.54 ex.VAT
£54.54 ex.VAT
From 1 reviews

Manhole Cover 1.5 Tonne Cast Iron 600mm x 450mm

Manhole Cover 1.5 Tonne Cast Iron 600mm x 450mm

From 3 reviews

Code: CLKS62 Size: 600mm x 450mm Opening Brand: ClarkDrain

£67.64 ex.VAT
£67.64 ex.VAT
From 3 reviews

Manhole Cover Ductile Iron 12.5 Tonne 600mm x 450mm

Manhole Cover Ductile Iron 12.5 Tonne 600mm x 450mm

From 1 reviews

Code: CLKS762KMB Size: 600mm x 450mm Opening Brand: ClarkDrain

£78.28 ex.VAT
£78.28 ex.VAT
From 1 reviews

Manhole Cover Ductile Iron 40 Tonne 600mm x 450mm

Manhole Cover Ductile Iron 40 Tonne 600mm x 450mm

Code: CLKS756KMD Size: 600mm x 450mm Opening Brand: ClarkDrain

£151.64 ex.VAT
£151.64 ex.VAT

Manhole Cover Ductile Iron 12.5 Tonne 600mm x 600mm

Manhole Cover Ductile Iron 12.5 Tonne 600mm x 600mm

From 1 reviews

Code: CLKS778KMB Size: 600mm x 600mm Opening Brand: ClarkDrain

£125.62 ex.VAT
£125.62 ex.VAT
From 1 reviews

Manhole Cover Ductile Iron 40 Tonne 600mm x 600mm

Manhole Cover Ductile Iron 40 Tonne 600mm x 600mm

Code: CLKS701KMD Size: 600mm x 600mm Opening Brand: ClarkDrain

£148.03 ex.VAT
£148.03 ex.VAT

Gully Grating Hinged Ductile Iron 12.5 Tonne 302mm x 302mm

Gully Grating Hinged Ductile Iron 12.5 Tonne 302mm x 302mm

Code: CD58DDI Size: 302mm x 302mm Opening Brand: ClarkDrain

£37.09 ex.VAT
£37.09 ex.VAT

Gully Grating Hinged Ductile Iron 40 Tonne 430mm x 370mm

Gully Grating Hinged Ductile Iron 40 Tonne 430mm x 370mm

Code: CLKS180KMD Size: 430mm x 370mm Opening Brand: ClarkDrain

£99.62 ex.VAT
£99.62 ex.VAT

Gully Grating Hinged Ductile Iron 40 Tonne 510mm x 360mm

Gully Grating Hinged Ductile Iron 40 Tonne 510mm x 360mm

Code: CLKS179KMD Size: 660mm x 466mm Brand: ClarkDrain

£154.16 ex.VAT
£154.16 ex.VAT

380mm Square Manhole Cover and Frame

380mm Square Manhole Cover and Frame

From 3 reviews

Code: CLKS300 Size: 400mm x 400mm x 300mm Diameter Opening Brand: ClarkDrain

£20.48 ex.VAT
£20.48 ex.VAT
From 3 reviews

580mm Square Manhole Cover and Frame

580mm Square Manhole Cover and Frame

Code: CLKS456 Size: 580mm x 580mm x 450mm Diameter Opening Brand: ClarkDrain

£47.34 ex.VAT
£47.34 ex.VAT

250mm Circular Manhole Cover and Frame

250mm Circular Manhole Cover and Frame

From 2 reviews

Code: UCL2 Size: 250mm Diameter Opening Brand: Marley Plumbing & Drainage

£24.81 ex.VAT
£24.81 ex.VAT
From 2 reviews

450mm Circular Manhole Cover and Frame

450mm Circular Manhole Cover and Frame

From 1 reviews

Code: CLKS452 Size: 450mm Diameter Opening Brand: ClarkDrain

£26.88 ex.VAT
£26.88 ex.VAT
From 1 reviews

Recessed Manhole Cover 10T 450mm x 450mm x 80mm for 450mm Circular Chambers

Recessed Manhole Cover 10T 450mm x 450mm x 80mm for 450mm Circular Chambers

Code: CLKS450SR Size: 450mm x 450mm x 80mm Brand: ClarkDrain

£48.78 ex.VAT
£48.78 ex.VAT

Recessed Manhole Cover 10T 450mm x 450mm x 46mm for 450mm Circular Chambers

Recessed Manhole Cover 10T 450mm x 450mm x 46mm for 450mm Circular Chambers

From 1 reviews

Code: CLKS450SR/46SL Size: 450mm x 450mm x 46mm Brand: ClarkDrain

£58.33 ex.VAT
£58.33 ex.VAT
From 1 reviews

Recessed Manhole Cover 5T 600mm x 450mm x 46mm

Recessed Manhole Cover 5T 600mm x 450mm x 46mm

From 2 reviews

Code: T11G3 Size: 600mm x 450mm Opening x 46mm Brand: ClarkDrain

£48.15 ex.VAT
£48.15 ex.VAT
From 2 reviews

Guides & Reviews

Top Tips For Buying Drainage Online

Top Tips For Buying Drainage Online

This helpful article gives tips on purchasing drainage materials, from selecting suppliers to comparing prices and checking your list.

Inspection Chambers - The Options Available

Inspection Chambers - The Options Available

This is short video gives an overview of the factors to consider when buying from our wide range of Inspection Chambers.

Comparing PVC Drainage to Other Materials

Comparing PVC Drainage to Other Materials

Not sure whether to install clay or PVC pipes? Read on to learn about the differences between the two systems.

Channel Drainage Garage Packs

Channel Drainage Garage Packs

An overview of our handy Channel Drain Garage Pack - all the parts you need to install channel drainage in front of a standard garage.

Drain Odours - The Main Causes and Cures

Drain Odours - The Main Causes and Cures

There are few things more unpalatable than drain odours – especially inside a house. This article explains how to solve the problem.

Stormsaver Rainwater Harvesting System

Stormsaver Rainwater Harvesting System

Take a look at the innovative Stormsaver Rainwater Harvesting System from Floplast - available from Drainage Sales.

Land Drain System Maintenance

Land Drain System Maintenance

Click here for help and advice on keeping your Land Drains in top condition, and steps to take if they do become blocked.

An Overview of the Channel Drainage System

An Overview of the Channel Drainage System

Learn about the basics of the Domestic Channel Drainage system, including how to join lengths and corners.

Tips for Keeping Household Drains Clear

Tips for Keeping Household Drains Clear

Drainage Sales gives a few hints and tips on how to avoid blocked drains in this short video - click here to see it!

Top Tips for Using Underground Ducting

Top Tips for Using Underground Ducting

A few tips to help you choose and install your Underground Ducting correctly.

Installation & Maintenance

How to install a duct access chamber

How to install a duct access chamber

Learn how to install our duct access chambers with a step-by-step guide containing easy to follow instructions and diagrams.

How to Join Underground Drainage Pipes

How to Join Underground Drainage Pipes

A quick Drainage Sales tutorial covering the basics of cutting, chamfering and joining Underground Drainage Pipes.

Underground Drainage Installation

Underground Drainage Installation

This informative video from FloPlast covers all the basics of Underground Drainage Installation, from planning to final implementation.

Ground Guard Installation Sheet

Ground Guard Installation Sheet

Take a look at an instruction leaflet for installing Ground Guard with both soil and gravel surfaces, also available to download.

Land Drains - Connecting Land Drains Together

Land Drains - Connecting Land Drains Together

If you have a large area to drain, you may need to join two or more land drains together. Take a look at our video to find out how.

Using Chambers at a change of direction

Using Chambers at a change of direction

Most people get this wrong! Watch this short video to make sure that your chamber bases are correctly laid out.

Gullies - How, why and where to use them

Gullies - How, why and where to use them

Confused by the wide variety of Gullies available? This video explains the key differences between the different options.

A Guide to Channel Drainage Installation

A Guide to Channel Drainage Installation

A handy Infographic that explains the component parts of the channel drainage system along with an installation guide.

Land Drains - Overview, Layout & Installation

Land Drains - Overview, Layout & Installation

An extended overview of Land Drains, including types of Land Drain, function, layout planning and some helpful installation tips.

Channel Drain Installation Instructions PDF

Channel Drain Installation Instructions PDF

Click here for a link to download our detailed step-by-step PDF installation guide for Channel Drainage Installation.

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