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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
    Terrafuzion%20-%20Espresso%20with%20Mocha.jpg.jpeg Terrafuzion%20-%20Espresso%20with%20Mocha%20Edge.png
    Special Offer

    Piranha Terrafuzion Reversible Composite Decking Board Mocha & Espresso 140 x 23 x 3600mm

    The Espresso/Mocha composite decking boards are ideal for those looking to create a more traditional decked area with a natural wooden feel. Offering two shades of brown, this is an ideal solution for homeowners who want a natural and timeless look...
  • Special Offer
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    Special Offer

    Piranha Terrafuzion Reversible Composite Decking Board Sandstone & Island Mist 140 x 23 x 3600mm

    Sandstone/Island Mist is an ideal option for homeowners looking to create a light and modern decked area. Offering two shades of light grey, it is the perfect choice for those wanting to incorporate a modern colour palette whilst keeping a lighter...
  • Special Offer
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    Special Offer

    Piranha Terrafuzion Reversible Composite Decking Board Slate & Graphite 140 x 23 x 3600mm

    The Slate/Graphite composite decking boards are an ideal solution for homeowners who are looking for an ultra-modern decked area. Presenting a blend of dark grey and graphite, this decking is well suited in a contemporary space. owarth offer a wide...
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    Talasey Terrafuzion Reversible Composite Decking Board Slate & Graphite 140 x 23 x 3600mm

    Slate & Graphite composite decking boards are perfect for homeowners aiming to create a sleek, modern outdoor space. Featuring a blend of dark grey and graphite tones, they complement contemporary designs effortlessly. Matching edging and fascia pieces...

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