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Decking

Decking is one of the easiest ways to create a functional and stylish outdoor living space. Whether you’re building a raised platform, extending your patio, or upgrading your garden, our range of decking boards and composite decking offers durable, long-lasting solutions for every project.

At Howarth Timber, we supply both timber and composite decking suitable for trade professionals and DIY customers, with a wide choice of sizes, finishes, and styles.

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  • Special Offer
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    Special Offer

    Talasey Hunter Composite Decking Boards Mid Grey 136 x 25 x 3600mm

    Talasey Hunter mid grey composite decking board creates a modern, hard wearing outdoor deck. Buy online with delivery or Click & Collect today.
  • Special Offer
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    Special Offer

    Cheshire Mouldings Pine Decking Stair UC3 3 Tread String Treated 872 x 250 x 48mm (DS3)

    The 3 Tread Decking String is made using treated Pine and allows you to create steps to various levels of decking with great ease. 5 Tread Decking Strings also available. Pine is a durable timber, which is easy to work with and looks great outside...
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    Talasey Terrafuzion Slim Metal Clips Composite Decking (100 Pack)

    Talasey Terrafuzion slim metal clips for composite decking supplied in packs of 100 for secure concealed fixing. Buy online today.
  • Special Offer
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    Special Offer

    Timber Decking UC3u Treated Grooved or Reeded Reversible 32 x 125 x 3600mm (5") (Finished Size 27x118mm)

    UC3 treated reversible timber decking board grooved or reeded 32 x 125 x 3600mm for garden decking. Buy online today.
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    Piranha Terrafuzion Composite Decking Fascia Board Espresso 120 x 10 x 3600mm

    To accompany our Terrafuzion range of decking boards we offer Fascia Boards, which allow you to create a neat finish to your installation. Our Fascia Boards are designed to cover the front edges of the decking once laid, so the underside of the...
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    Trex Composite Decking Enhance Square Edge Foggy Wharf 25 x 140 x 4880mm

    The Square Composite Decking in Foggy Wharf is part of the Trex Enhance Naturals range that is designed to offer a decking that has the natural beauty of timber, including a realistic woodgrain but without the high maintenance, as the composite decking...
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    Piranha Terrafuzion Composite Decking Edging Board Espresso 120 x 10 x 3600mm

    Piranha Terrafuzion composite decking edging board in Espresso 120 x 10 x 3600mm. Buy online today.
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    Trex Composite Decking Enhance Grooved Foggy Wharf 25 x 140 x 4880mm

    The Grooved Composite Decking in Foggy Wharf is part of the Trex Enhance Naturals range of decking, which is designed to be affordable and low maintenance. Manufactured from 95% recycled materials, the decking won't fade and requires no applications of...
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    Piranha Hunter Composite Decking Fascia Boards Anthracite 150 x 10 x 3600mm

    Piranha Hunter composite decking fascia board in Anthracite 150 x 10 x 3600mm. Buy online today.
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    Piranha Terrafuzion Composite Decking Fascia Board Graphite 120 x 10 x 3600mm

    Piranha Terrafuzion composite decking fascia board in Graphite 120 x 10 x 3600mm. Buy online today.
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    Trex Composite Decking Transcend Square Edge Island Mist 25 x 140 x 4880mm

    Square Board from Trex Transcend is a popular option for those looking for a traditional decking that fixes like timber with deck screws, and offers a durable finish. Island Mist is an exotic silver colour that copies the natural tones of tropical woods...
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    Trex Composite Decking Enhance Square Edge Saddle 25 x 140 x 3660mm

    The Square Composite Decking in Saddle is part of the Trex Enhance Basics range which comes at a great price whilst offering a decking option that is easy to maintain as it won't fade or stain, removing the need for adding paints or oils to the surface...
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    ArborDeck Timber Balustrade Treated Turned Decking Newel 90 x 90 x 1.25m

    The Arbordeck Softwood Decking Newel posts are pressure treated and kiln dried to ensure longevity and quality of product. Because they are incredibly durable, they can provide a 15 year service life when used above DPC and in accordance with approved...
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    Piranha Terrafuzion Composite Decking Fascia Board Mocha 120 x 10 x 3600mm

    Piranha Terrafuzion composite decking fascia board in Mocha 120 x 10 x 3600mm for a smart deck finish. Buy online today.
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    Talasey Hunter Composite Decking Fascia Boards Mid Grey 150 x 10 x 3600mm

    Talasey Hunter composite decking fascia board in Mid Grey 150 x 10 x 3600mm for professional deck edging. Buy online today.
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    Trex Composite Decking Transcend Grooved Tiki Torch 25 x 140 x 3660mm

    The Grooved Board in Tiki Torch is a part of Trex's Transcend range of decking. Tiki Torch is a beautifully earthy shade with streaking designed to resemble red-brown hardwood. Please note: Timber and stone are natural materials, and as such, variation...
  • Special Offer
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    Special Offer

    Talasey Hunter Composite Decking Boards Brown 136 x 25 x 3600mm

    Talasey Hunter brown composite decking board combines timber style with low maintenance performance. Buy online or Click & Collect today.
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    Trex Composite Decking Transcend Square Edge Spiced Rock 25 x 140 x 4880mm

    The Square Board from Trex Transcend incorporates Trex's signature shell, ensuring that it is strong and durable. Similar to traditional timber boards, the square boards are installed using deck screws. Spiced Rum is a rich, earthy shade. Please note:...
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    ArborDeck Timber Decking & Rail UC3u Treated Smooth 38 x 150 x 4800mm (6") (Finished Size 32x145mm)

    The Arbordeck Treated Timber Deck is manufactured from high quality imported softwood, with a high-pressure treatment providing longer life. Crafted from premium Redwood, these decking boards promise exceptional strength and durability, ensuring...
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    Talasey Hunter Composite Decking Edging Boards Anthracite 136 x 25 x 3600mm

    Talasey Hunter composite decking edging board in Anthracite 136 x 25 x 3600mm for durable deck edging. Buy online today.
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    Trex Composite Decking Enhance Square Edge Calm Water 25 x 140 x 3660mm

    The Square Composite Decking in Calm Water is part of the Trex Enhance Naturals range that is a mid-range choice offering affordable decking that is made from 95% recycled material but has a realistic woodgrain finish. Being a composite type of decking...
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    Trex Composite Decking Transcend Grooved Tiki Torch 25 x 140 x 4880mm

    Trex Transcend Grooved Board is a high-quality decking that is durable and attractive. Tiki Torch is a warm colour with hardwood streaks. Other shades are also available. Please note: Timber and stone are natural materials, and as such, variation in...
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    Trex Composite Decking Enhance Square Edge Rocky Harbour 25 x 140 x 3660mm

    The Square Composite Decking in Rocky Harbour is part of the Trex Enhance Naturals range that offers the perfect combination of affordability with a decking that is made from materials that are 95% recycled, whilst still having the appearance of...
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    VersaDeck Composite Decking Board Platinum or Sandstone Reversible 23 x 143 x 3600mm

    VersaDeck reversible composite decking board in Platinum or Sandstone offers a durable, low maintenance deck. Buy online today.

Transform your garden with quality decking

Timber decking boards

Timber decking provides a traditional, natural look and is a cost-effective choice for many garden projects. Our treated timber decking boards are designed to resist rot and decay, making them ideal for outdoor use.

Composite decking

Composite decking is a low-maintenance alternative that offers long-term durability. Resistant to weathering, fading, and warping, it’s perfect for modern outdoor spaces.

Decking kits & components

Complete your project with:

Choosing the right decking

When selecting decking, consider:

  • Material – Timber for a natural finish, composite for low maintenance
  • Durability – Treated timber lasts longer outdoors
  • Style – Grooved boards for grip, smooth for a modern look
  • Project type – Raised decks, patios, or garden seating areas

Complete your decking project

Make sure you have everything you need:

If you are working on a new project or renovating an existing outdoor space, pop into your local Howarth branch or browse our website. We also offer Click & Collect and Delivery options.

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Frequently Asked Questions

What timber do I need for decking?
Pressure-treated timber is one of the best options for decking frames because of its affordability.
How many deck boards do I need?
You'll need to calculate the area of the deck in m2 to figure out how many deck boards you'll need. To do this, multiply your deck's length by its width. For example: The length of your deck will be 5 metres, and the width will be 4 metres. 5 x 4 = 20, so the total area of your deck will be 20m2. Then you'll need to figure out how big a single board is. You must double the board's length by its width to achieve this. Finally, divide the deck's area by the area of the deck to figure how much decking you'll need to build your new deck.
What size wood for decking frame?
The most used joist sizes for decking are 2x6, 2x8, 2x10.
Do you need planning permission for decking?
You may need planning permission for decking if it covers more than fifty percent of your garden or is installed more than 30cm off the ground.
What is the best decking material?
Timber decking is affordable and traditional, while composite decking offers long-term durability with minimal maintenance.
How long does decking last?
Treated timber decking can last 10–15 years, while composite decking can last 20+ years.
Do I need treated timber for decking?
Yes, treated timber is recommended as it provides protection against moisture, rot, and insects.

How to guides

Decking - An Ultimate Guide

A helpful article with all the answers to the most frequently asked questions regarding both regular and composite decking in one place!

How to build a raised deck

Need help building a raised deck? We've got you covered with a full step by step guide.

Customer inspiration