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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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    ArborDeck Timber Decking UC3u Treated Smooth or Grooved Reversible 32 x 150 x 4500mm (6") (Finished Size 27x145mm)

    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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    ArborDeck Timber Decking UC3u Treated Smooth or Grooved Reversible 32 x 150 x 5100mm (6") (Finished Size 27x145mm)

    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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    ArborDeck Timber Decking UC3u Treated Smooth or Grooved Reversible 32 x 150 x 5700mm (6") (Finished Size 27x145mm)

    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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    ArborDeck Timber Decking UC3u Treated Smooth or Grooved Reversible 38 x 125 x 4200mm (5") (Finished Size 33x120mm)

    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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    BuildDeck Prime Solid Composite Decking Board Dual Sided Ebony 132 x 20 x 3600mm

    The Prime Range of composite decking is designed to combine lasting performance with timeless style, creating an attractive and functional outdoor space. Manufactured with a blend of FSC-certified wood fibres and recycled plastics, this range offers a...
  • BuildDeck-prime-vintage-teak-composite-decking.webp decking%20built%20to%20last%20asset.jpg.jpeg

    BuildDeck Prime Solid Composite Decking Board Dual Sided Teak 132 x 20 x 3600mm

    The Prime Range of composite decking is designed to combine lasting performance with timeless style, creating an attractive and functional outdoor space. Manufactured with a blend of FSC-certified wood fibres and recycled plastics, this range offers a...
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    BuildDeck QuickFit Aluminium Decking 3600 x 21 x 152mm (RAL7039)

    BuildDeck QuickFit aluminium decking board RAL7039 3600 x 152 x 21mm for durable, low maintenance decking. Buy online today.
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    BuildDeck Regent Composite Step Board Charcoal 22 x 140 x 3600mm

    Capped decking step boards with bull-nose edging provide a polished, functional finish for Regent Lite composite decking, creating smooth, safe edges for steps and perimeters while enhancing the overall elegance of outdoor spaces. Available in four...
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    BuildDeck Regent Composite Step Board Grey 22 x 140 x 3600mm

    Capped decking step boards with bull-nose edging provide a polished, functional finish for Regent Lite composite decking, creating smooth, safe edges for steps and perimeters while enhancing the overall elegance of outdoor spaces. Available in four...
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    BuildDeck Regent Composite Step Board LPE 22 x 140 x 3600mm

    Capped decking step boards with bull-nose edging provide a polished, functional finish for Regent Lite composite decking, creating smooth, safe edges for steps and perimeters while enhancing the overall elegance of outdoor spaces. Available in four...
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    BuildDeck Regent Lite Fascia Trim Board Ebony 10 x 100 x 3600mm

    The Regent Lite Fascia Trim Board is designed to deliver a professional and refined finish to composite decking projects. Suitable for both residential and commercial spaces, this fascia trim provides a practical solution for concealing exposed edges...
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    BuildDeck Regent Lite Fascia Trim Board Grey 10 x 100 x 3600mm

    BuildDeck Regent Lite grey fascia trim board 10 x 100 x 3600mm for a smart decking finish. Buy online today.
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    BuildDeck Regent Lite Fascia Trim Board Redwood 10 x 100 x 3600mm

    The Regent Lite Fascia Trim Board is designed to deliver a professional and refined finish to composite decking projects. Suitable for both residential and commercial spaces, this fascia trim provides a practical solution for concealing exposed edges...
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    BuildDeck Regent Lite Fascia Trim Board Teak 10 x 100 x 3600mm

    The Regent Lite Fascia Trim Board is designed to deliver a professional and refined finish to composite decking projects. Suitable for both residential and commercial spaces, this fascia trim provides a practical solution for concealing exposed edges...
  • Special Offer
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    Special Offer

    BuildDeck Regent Lite Round Hole Decking Board Grey/Charcoal 23 x 138 x 3600mm

    The Regent Lite Range combines smart value with lasting style, offering a fully capped, lightweight composite board that enhances any garden with a premium look and feel. Designed to balance sophistication, durability, and eco-friendliness, these boards...
  • Special Offer
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    Special Offer

    BuildDeck Regent Lite Round Hole Decking Board Teak/Ipe 23 x 138 x 3600mm

    The Regent Lite Range combines smart value with lasting style, offering a fully capped, lightweight composite board that enhances any garden with a premium look and feel. Designed to balance sophistication, durability, and eco-friendliness, these boards...

  • Cheshire Mouldings Core Deck American Spindle UC3 Treated 32 x 32 x 895mm

    The American Decking Spindle boasts a simple but timeless design and adds style and personality to decking effortlessly.

  • Cheshire Mouldings Core Deck Newel Post with Cap UC3 Treated 1500 x 83 x 83mm

    Featuring a classic but unique design the Decking Newel Post with Ball Newel Cap included eliminates the time and effort associated with installing newel caps to newel posts.

  • Cheshire Mouldings Cross Hatch Decking Panel UC3 Treated 1135 x 760 x 38mm

    The Cross Hatch Decking Panel is made from treated Pine and boasts the timeless cross hatch design offering addition style and personality to the decking.

  • Cheshire Mouldings Decking Capping Rail 1795 x 80 x 16mm

    The Treated Pine 1.8 metre Capping Rail features a simple but timeless design and fits on top of the decking rail with great ease.

  • Cheshire Mouldings Dek Baluster Decking Rail UC3 Treated 1795 x 83 x 35mm

    The Dek Treated Pine Decking Rail can easily be attached to the newel posts using the bracket. Co-ordinates perfectly with Bow& Eden and American decking ranges

  • Cheshire Mouldings Iron Deck Hanger Rail Fixing Bracket Black 97 x 62 x 12mm

    This fixing bracket joins the rail to the newel post simply and adds a stylish finishing touch.

  • Cheshire Mouldings Iron Deck Pre-Drilled Rail Treated 1800 x 36 x 84mm

    This pre-treated rail is pre-drilled for easier fitting
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    Forest Garden Patio Deck Tile 600 x 600 x 38mm (4 Pack)

    Forest Garden patio deck tiles 600 x 600 x 38mm supplied in packs of 4 for patios and balconies. 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