Composite Decking

Composite Decking

Our high quality, affordable 3D wood grain effect Alpha Composite Decking can help transform your outdoor space this summer.

Alpha Composite Decking boards come in two sizes 3.66m (12ft) lengths and 2.2m (7.21ft) lengths.

Choose from our 4 amazing colours including anthracite, our ever popular grey, teak and oak. We also sell all the fixings and accessories you will need to complete your project.

Once you have had a look through, don't forget to order your FREE sample box to get a real feel. All our low maintenance composite decking comes with a 15 year warranty giving you total peace of mind for years to come.

We have free, fast delivery with large orders to Essex, Surrey and mainland Britain.


3.66m Boards

2.2m Boards

15 Year Residential Warranty
Low maintenance, never treat or stain
No rotting, warping or splinters
Highly rated non-slip decking

Order your FREE sample box

Get a real feel and see the quality for yourself. Receive your sample within 2-3 working days. 1 Sample box per customer.

A sample box of our Composite Decking containing all 4 colours
£ 0.00 
Buy now

Composite Decking FAQs

What are the main benefits of composite decking?

Alpha Decking's WPC decking needs far less maintenance and in most circumstances none compared to traditional wood decking options. The plastic content in our decking means our boards are resistant to rot and damp, and are extremely slip resistant with no warping or cracking. WPC decking will also never need to be sealed, stained or painted saving you £1000’s over your decking’s life span.

What does the 15 year warranty cover?

Alpha Decking's 15 year warranty protects against warping, cracking, splitting, rotting and fungal decay caused by manufacturing defects, when subject to normal use. You can find the full warranty here.

Will my decking colour fade?

Over the first couple of months after installation you will notice your decking go through a weathering process, like anything left outside, due to UV exposure where the colour will start to become slightly lighter (around 10%) including a very slight reduction in the wood grain. Please do not worry as this is completely normal and will stabilise after this initial period. We have a picture graph below to give an example and a general representation of colour changes after 2 months outside exposed to UV light. Please note we have tried to accurately capture the colours but different lighting, angles and cameras and of course actual UV exposure means this may not be exactly how all boards will look after 2 months.

Will I see the fixings?

No, you won't. Our decking boards have seamless installation with hidden fixings.

How do I know how much decking I will need?

To work out how many decking boards and other fixtures and fittings you will need you will first need to take your measurements where you would like the decking to go. You can put these measurements into our online price calculator which will automatically work out what you need and allow you to easily checkout online. If you need any extra assistance you can always call our sales team on 0203 011 1661 or email

What colours do you have available?

We have 4 amazing colours to choose from. Our beautiful deep anthracite, ever popular grey, traditional teak and majestic oak. We also will have new colours coming in Spring 2021.

How fast and how much is delivery?

We have fast delivery times all year round, lead times at the moment are 3-5 days. Our distribution hub is based in Essex so we are ideally located to serve all of mainland Britain. Delivery is free for all orders over £1,200*. For orders under £1,200 standard delivery is only £60.

Use our free decking calculator

Length (Meters)


Width (Meters)

or enter the area in Sqm

You will need

0 3.66m boards

Use of full decking calculator here
Full Calculator
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Alpha Composite Decking is a wood-plastic composite decking (WPC ) that has a natural beauty and the feel of real wood. Choose natural looking wood grain Alpha Composite Decking for an authentic alternative to timber decking without the maintenance.

Our 3D wood grain effect WPC composite decking will transform your outdoor space and provide years of enjoyment. What’s great about our decking is that it needs far less maintenance and in most circumstances none, compared to traditional wood decking options. The plastic content in our decking means our boards are resistant to rot and damp, and are extremely slip resistant with no warping or cracking. WPC decking will also never need to be sealed, stained or painted saving you £1000’s over your decking’s life span.

It is engineered from an innovative composition of 60% FSC® certified wood reclaimed from post-industrial manufacturing and 40% recycled High Density Polyethylene. Using recycled wood polymer construction makes it so much more durable than timber. The low maintenance, life-proof durability and weather-resistant qualities are just some of the reasons why it is perfect for your decking garden.

All our composite decking is UV protected meaning it is extremely durable under UV light. Scrubbing and staining your decking every year is a thing of the past with composite wood decking. Alpha decking comes in 4 natural shades that resist fading caused by air-pollutants, weather and UV exposure. Our decking comes with a 15 year limited residential warranty against splits, splinters, rot and fungal decay. This low maintenance solution is therefore the perfect choice for any commercial space or residential garden deck.

You'll find our composite decking to be extremely resilient, and it can be used for simple garden projects or complex landscaping projects. Clever concealed fixings give a neat flawless finish which can be installed quickly and easily making Alpha composite decking the ideal choice.

Alpha Decking operate out of Essex and Surrey. We can supply composite decking throughout most of the UK and whether you’re a property owner looking to improve their garden or a tradesman looking for ongoing supply for your projects, get in touch and we will be happy to help.

Alpha Composite Decking Boards in a garden

Additional items you may need

The ultimate sealant and adhesive. Perfect for attaching corner trims to composite decking.

EB25 - 300ml

£ 11.50 
inc VAT
Corner trims can be used to finish and complete your new decking. All trims are made from the same composite material as our decking boards and available in the same colours.

Edge Trim 2.2m

£ 8.99 
inc VAT
2.2m Composite Fascia Board

Fascia Boards 2.2m

£ 11.99 
inc VAT
Joists are weatherproof, low maintenance, hardwearing support for your decking. They create a stable subframe.

Composite Joist 2.2m

£ 9.50 
inc VAT
Our plastic support pedestals are incredibly robust. With support heights from 150mm - 250mm, they can create a stable base for your decking.

Plastic Pedestal

£ 4.99 
inc VAT
Screws are included.

Box of 100 Black Stainless Steel Spacer Clips and Screws

£ 32.00 
inc VAT
Create a clean look using these hidden starter clips, perfect for creating a hidden deck fastening system.

Box of 50 Stainless Steel Starter Clips and Screws

£ 15.00 
inc VAT