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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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    Trex Composite Decking Transcend Square Board New Gravel Path 25 x 140 x 4880mm

    Trex square edge board decks are traditionally installed with deck screws like timber decking. The Trex Transcend line of composite decking is the best of the best. With superior quality and appearance, it is manufactured in luxurious, fade resistant...
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    Trex Composite Decking Transcend Square Edge Island Mist 25 x 140 x 3660mm

    The Trex Transcend Square Board has square edges and closely resembles traditional timber, including installation with deck screws. Island Mist is a relaxing silver shade that mimics the natural colouring of tropical hardwoods. Please note: Timber and...
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    Trex Composite Decking Transcend Square Edge Lava Rock 25 x 140 x 3660mm

    Square Boards in Gravel Path are a dark red / black coloured deck board from Trex Transcend. Designed to be durable and strong, the boards fit into place like timber, with decking screws. Please note: Timber and stone are natural materials, and as such,...
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    Trex Composite Decking Transcend Square Edge Lava Rock 25 x 140 x 4880mm

    Square Boards from Trex Transcend are a strong decking board that are similar to timber and are fitted using deck screws. Available in Lava Rock; a red-black shade with hardwood streaks. Please note: Timber and stone are natural materials, and as such,...
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    Trex Composite Decking Transcend Square Edge Spiced Rum 25 x 140 x 3660mm

    The Trex Transcend Square Board in Spiced Rum is a traditional style of decking board that offers both strength and durability. Spiced Rum is a warm and earthy shade. Please note: Timber and stone are natural materials, and as such, variation in colour,...
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    Trex Composite Decking Transcend Square Edge Tiki Torch 25 x 140 x 3660mm

    Trex Transcend Square Board in Tiki Torch is an earthy toned board with hardwood streaks in brown-red. This durable deck board is similar to timber decking and installs the same way, using deck screws. Please note: Timber and stone are natural materials,...
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    Trex Composite Decking Transcend Square Edge Tiki Torch 25 x 140 x 4880mm

    The Square Board from Trex Transcend is a decking board that is designed to be installed like traditional timber boards, with deck screws. Tiki Torch is a warm colour with dark red hardwood streaks. Please note: Timber and stone are natural materials,...
  • Special Offer
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    Special Offer

    VersaDeck Composite Decking Board Onyx or Pewter Reversible 23 x 143 x 3600mm

    The 3.6m VersaDeck capped composite decking board is exclusive to trade and features a dual-sided colour design, giving installers the flexibility to create eye-catching decking designs. With enhanced resistance to moisture, fading caused by UV damage,...
  • Special Offer
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    Special Offer

    VersaDeck Composite Decking Board Platinum or Sandstone Reversible 23 x 143 x 3600mm

    The 3.6m VersaDeck capped composite decking board is exclusive to trade and features a dual-sided colour design, giving installers the flexibility to create eye-catching decking designs. With enhanced resistance to moisture, fading caused by UV damage,...
  • Special Offer
    Cladco%20VersaDeck%20Bullnose_Rosewood%20copy.jpg.jpeg Cladco%20VersaDeck_Rosewood_Burnt%20Oak%20copy.png
    Special Offer

    VersaDeck Composite Decking Board Rosewood or Burnt Oak Reversible 23 x 143 x 3600mm

    The 3.6m VersaDeck capped composite decking board is exclusive to trade and features a dual-sided colour design, giving installers the flexibility to create eye-catching decking designs. With enhanced resistance to moisture, fading caused by UV damage,...
  • Special Offer
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    Special Offer

    WPC Tade Composite Decking Board Charcoal Grained or Grooved Reversible 25 x 150 x 3600mm

    Exclusive to trade partners, these 3.6m reversible composite decking boards feature a woodgrain finish on one side and narrow anti-slip grooves on the other. Lightweight, low-maintenance and available in four popular colours.  Manufactured from a...
  • Special Offer
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    Special Offer

    WPC Tade Composite Decking Board Coffee Grained or Grooved Reversible 25 x 150 x 3600mm

    Exclusive to trade partners, these 3.6m reversible composite decking boards feature a woodgrain finish on one side and narrow anti-slip grooves on the other. Lightweight, low-maintenance and available in four popular colours.  Manufactured from a...
  • Special Offer
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    Special Offer

    WPC Tade Composite Decking Board Grey Grained or Grooved Reversible 25 x 150 x 3600mm

    Exclusive to trade partners, these 3.6m reversible composite decking boards feature a woodgrain finish on one side and narrow anti-slip grooves on the other. Lightweight, low-maintenance and available in four popular colours.  Manufactured from a...
  • Special Offer
    Cladco_Reversible_Bullnose-Composite_Teak.jpg.jpeg Cladco_Reversible_Solid-Composite_Teak.jpg.jpeg
    Special Offer

    WPC Tade Composite Decking Board Teak Grained or Grooved Reversible 25 x 150 x 3600mm

    Exclusive to trade partners, these 3.6m reversible composite decking boards feature a woodgrain finish on one side and narrow anti-slip grooves on the other. Lightweight, low-maintenance and available in four popular colours.  Manufactured from a...
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    Trex Composite Decking Transcend Grooved Island Mist 25 x 140 x 4880mm

    TREX Transcend decking's deep wood-grain pattern and luxurious colours give it a premium, timeless appearance that sets it apart from other composites. Rich, fade-resistant colours resemble the look of natural wood while requiring little maintenance...
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    Trex Composite Decking Transcend Grooved Island Mist 25 x 140 x 3660mm

    The Grooved Decking Boards are part of the Trex Transcend range of decking. Available in Island Mist, these decking boards are strong with a natural silver colouring. Please note: Timber and stone are natural materials, and as such, variation in colour,...
  • Special Offer
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    Special Offer

    Cheshire Moulding Pine Square UC3 Treated Deck Newel Post 1250 x 83 x 83mm (DEP12BLANK)

    The Cheshire Mouldings pine softwood decking newel post is a simple, plain designed but very functional deck post which adds strength and a focal point for deck balustrading. A simple, yet stylish design this is an essential part of any decking area...

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