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The UK's most affordable, high-quality decking board

Decking Calculator

When buying decking the first question is "How much decking will I need?". Our handy decking calculator will give you an idea of how many decking boards you need, and an indicative cost for your preferred decking choice. This is only based on the square meterage of the area and additional boards should be added where required. Please note this is a guide only and you should always check calculations are correct. Would you like personal assistance with your quotation from a trained member of staff? You can call us on 01837 659901 or email us at a [email protected]. We aim to respond within an hour, during office hours of 8-5 Monday to Friday, or 8-1 on Saturdays .

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Dimensions

Decking Type

Choose which type of decking board you would like to construct your decking.

Select Your Colour

Choose a colour for your decking.

Fascia Boards

Fascia Boards are designed to be installed around the sides of your Decking area to conceal any joists and gaps beneath the Boards, whilst preventing debris and small animals from entering the underside of your installation. They create a seamless, high-quality finish whilst protecting the Decking Boards and their supporting structure.

Fascia Boards measure 2.4m in length, and so you may require multiple Fascia Boards depending on the size of your Deck.

They are available in all eight matching Composite Decking Board colours so you can complement or contrast the edging of your Decking.

Fascia Diagram U Shape Area A Area B Area C Area D Area E Area F Area G Area H
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Fascia Diagram U Shape Area A Area B Area C Area D Area E Area F
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Fascia Diagram U Shape Area A Area B Area C Area D Area E Area F
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Fascia Diagram U Shape Area A Area B Area C Area D
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Fascia Diagram U Shape Area A Area B Area C Area D
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Fascia boards cover the sides of your deck and hide the frame.

Fascia boards cover the sides of your deck and hide the frame.

Bullnose / Picture Frame Edging

Bullnose Decking Boards are used to neatly finish the edges of your Decking project by creating a sophisticated border, thanks to their solid, rounded edge that runs along one side of the Board. Due to their natural colour variations, Bullnose Boards are not intended to seamlessly match your Composite Decking Boards. We suggest choosing a contrasting colour of Board to create a picture frame effect.

Select the sides of your Decking you would like to add a Bullnose Board to below.
Please note, Boards are available in 4m lengths that can be cut to size using standard woodworking tools.

bullnose Diagram u-shape Shape Side A Side B Side C Side D Side E Side F Side G Side H
bullnose Diagram j-shape Shape Side A Side B Side C Side D Side E Side F
bullnose Diagram l-shape Shape Side A Side B Side C Side D Side E Side F
bullnose Diagram rectangle Shape Side A Side B Side C Side D
bullnose Diagram square Shape Side A Side B Side C Side D
Create a picture framed effect by using our bullnose edging in a contrasting colour.

Create a picture framed effect by using our bullnose edging in a contrasting colour.

Frame Materials

Choose from a number of deck framing posts and decking joist materials to give your decking the lift and sturdiness it deserves.

*Please note Cladco composite joists must be used on a solid concrete base. The concrete base should be at least 10cm thick and have a slight slope.

Additional items for your project

Below we have estimated additional items you may need to complete your project.

Please click on any items you do not require.

Review and add to basket

4m Hollow Domestic Grade Composite Decking Board in Coffee4m Hollow Domestic Grade Composite Decking Board in Coffee£28.80394£11347.20

Order Summary

For a decking area of your final price comes to:

Total:

Please note: This final price does not contain delivery. Please click on the variable options on our checkout page.

Delivery Information

Please note: The final price above does not contain delivery. Please click on the variable options on our checkout page, or view our delivery pricing on the table opposite.

 
Estimated 5 working days £96.00
(Orders over £1000)
National Delivery*
£192.00
(Orders under £1000)
National Delivery*
FREE
(Orders over £1500)
National Delivery*
 
Estimated 15 working days £360.00 Scotland Delivery
 
Estimated within 1 hour Free Collection from Okehampton, Devon
 
Estimated within 1 hour Free Collection from Andover, Hampshire
*Please allow for public holidays and weekends (non-delivery days)

Installation Guide

Decking Installation Guide

Before beginning work

Having taken delivery of your boards, we recommend you allow them a day to adjust to your local temperature and conditions before starting work. We do not recommend installing your deck in cold weather. Your Cladco decking® boards can be worked with normal woodworking tools. We recommend using a wood saw with a fine-tooth blade to cut boards to size. When cutting, care should be taken to ensure the boards are properly supported.

For your safety

As with other building work it is important to work safely and to take suitable safety precautions including the wearing of protective clothes, gloves, safety goggles and dust mask.

1

Make sure that the area to be decked is flat and stable. The concrete base should be at least 10cm thick and have a slight slope – we suggest a gradient of 1 in 80 – that runs away from the property to allow for the run-off of water that collects under the deck.

2

The maximum recommended space between joist rows depends on the angle at which you intend to lay your boards in relation to the joists, but should never exceed 40cm, please see diagram (above).

3

Boards must not be laid directly on the ground but should be fixed to the joists of a suitable supporting substructure. This will vary, for a domestic patio deck we typically recommend a simple concrete base and our own WPC joists.

4

A gap of at least 15mm should be left between the ends of joists and a fixed object such as a wall and of at least 8mm between the ends of joists at butt joints. These allow for proper drainage and temperature expansion.

5

A starter clip needs to be fixed to the end of the WPC joists before laying the first board. Place these at the end of each joist where you will start to lay your boards, leaving a gap of 15mm between the wall and the starter clip to allow for expansion.

6

Starter clips allow you to start and finish your decking precisely where you want, meaning you wont have a large gap when fitting against a wall of fence. Attach the stainless steel starter clip to the end of the WPC joist before starting to lay your Cladco decking boards.

7

Our WPC boards are easily fastened to the joists of a supporting substructure with the help of our stainless steel screw and plastic T-Clip system. Start at the outside of the area to be decked. Place your first board and fix it to each joist it crosses using a row of starter clips.

8

Then fit T-clips into the groove along the side of the board and screw them into the supporting joists with the screws provided, one T-Clip for each supporting joist. We recommend you use our stainless steel wood screws offering increased wear and less corrosion.

9

Fit your next board by sliding it onto the T-Clips used to secure the first board and fitting another set of T-Clips to secure the opposite side of the board, again one T-Clip for each supporting joist. Follow a similar process to fix subsequent boards.

10

The ends of boards must be fully supported. No overhang or cantilever is allowed.

11

At butt joints – where the ends of two decking boards meet, this may mean doubling up on supporting joists as you will need to ensure that each board is held in place with it’s own T-Clip where they meet.

12

Having fastened your boards all that remains is to tidy up the sides of your new deck with our WPC skirting and corner trims which can be used to hide the unfinished end of boards and supporting joists.

13

Our hollow decking end caps are used to seal off the ends of hollow core boards to give your decking a professional finished look, and are available in the same colours as all our composite decking boards. Apply them to neatly complete your decking project.

14

Corner trims are available in both composite material or aluminium and can be applied subsequently to skirting trims to achieve a finished look to your project by screwing them directly into the joist below the decking.

15

Our skirting trims can be screwed directly into joists with wood screws. A gap of at least 8mm should be maintained between skirting trims and the ends and sides of boards to allow for expansion due to temperature increases.

16

We recommend you do not fully close your deck to allow for the free circulation of air and drainage. Every deck is different and this should be used as a guide only. We accept no liability for any loss or injury caused by any reliance placed on this guide.

Installing decking on grass

Before beginning work

Having taken delivery of your boards, we recommend you allow them a day to adjust to your local temperature and conditions before starting work. We do not recommend installing your deck in cold weather. Your Cladco decking boards can be worked with normal woodworking tools. We recommend using a wood saw with a fine-tooth blade to cut boards to size. When cutting, care should be taken to ensure the boards are properly supported.

If installing on grass ..

...follow the four steps below, then continue as shown on the previous steps above.

1

Clear away any plants, weeds, rocks, or other material that might be obstructing your site. Cut away the turf of the lawn by using an edger to cut the area and then a spade to remove it. Make sure the ground is level, you can do this by checking your site with a spirit level.

2

Remove the turf until the ground is completely even. Cover the area of your site with a layer of weed control fabric to prevent any weed regrowth coming up under your decking. You may want to pin your weed mat down at this stage.

3

The maximum recommended space between joist rows depends on the angle at which you intend to lay your boards in relation to the joists, but should never exceed 40cm, please see diagram (above).

4

Starter clips needs to be fixed to the end of the joists before laying the first board. Place these at the end of each joist, leaving a gap of 15mm between the wall and the starter clip to allow for expansion. Continue with steps 5-16 on the previous page.