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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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    Forest Garden Patio Deck Tile 600 x 600 x 38mm (4 Pack)

    This Patio Deck Tile is ideal if you want to make a feature outside your house. This tile's broad shape means that it creates a sizable surface area for lounging or entertaining. Additionally, it has inbuilt bearers, so you won't have to worry about how...
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    Forest Garden Patio Deck Tile 900 x 900 x 38mm (4 Pack)

    If you want to create a feature outside your home, then this Patio Deck Tile is just the thing for you! The large format of this tile means that it creates a large surface area for entertaining or relaxing. It also comes with integral bearers, so there's...
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    Forest Garden Pressure Treated Patio Decking Kit PEFC 2.4 x 2.4 x 1.3m

    Kit containing everything you need to transform your garden to create an al fresco dining area or somewhere to relax, including decking and balustrades. Transform your garden with this Patio Deck Kit. The kit contains everything you need to transform...
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    Forest Garden Ultima Pergola and Decking Kit 2.4 x 2.4m

    With the help of this pre-built raised pergola and decking kit, transform your landscape. The kit is made of pressure-treated wood with a 15-year warranty against rot and fungus decay. Additionally, the pergola has been smooth-planed for a splinter-free...
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    Forest Garden Ultima Pergola and Decking Kit 2.4 x 4.8m

    With the help of this pre-built raised pergola and decking kit, transform your landscape. The kit is made of pressure-treated wood with a 15-year warranty against rot and fungus decay. Additionally, the pergola has been smooth-planed for a splinter-free...
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    Forest Garden Value Decking Board PEFC 19 x 120 x 2400mm (5") (10 Pack)

    A traditional, vertical board with a ridged profile made from pressure treated timber for a natural finish. The Value Deck Board from Forest is a traditional vertical board, at 2.4m in length it's ideal for creating a beautiful decked area in your garden...
  • Special Offer
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    Special Offer

    Timber Decking UC3u Treated Grooved or Reeded Reversible 32 x 125 x 3000mm (5") (Finished Size 27x118mm)

    The Arbordeck Treated Timber Deck is manufactured from high quality imported Scandinavian softwood, with a high-pressure green treatment providing longer life.Arbordeck decking boards are a perfect choice for traditional or contemporary gardens and...
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    Timber Decking UC3u Treated Smooth or Grooved Reversible 32 x 125 x 3000mm (5") (Finished Size 27x118mm)

    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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    Timber Decking UC3u Treated Smooth or Grooved Reversible 32 x 125 x 4200mm (5") (Finished Size 27x118mm)

    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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    Timber Decking UC3u Treated Smooth or Grooved Reversible 32 x 125 x 4800mm (5") (Finished Size 27x118mm)

    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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    Timber Decking UC3u Treated Smooth or Grooved Reversible 32 x 125 x 5100mm (5") (Finished Size 27x118mm)

    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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    Timber Decking UC3u Treated Smooth or Grooved Reversible 32 x 125 x 5400mm (5") (Finished Size 27x118mm)

    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...

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