Decking

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Accoya A1 Grade Rough Sawn Timber Kiln Dried FSC 75 x 100mm (4")

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£66.05 - £189.89 per piece (Ex VAT)

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£79.26 - £227.87 per piece (Inc VAT)

High Performance Accoya is an exceptional high-performance, eco-friendly wood known for its remarkable durability and stability. Through its non-toxic acetylation treatment, Accoya outperforms even the best tropical hardwoods, offering long-lasting...

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£66.05 - £189.89 per piece (Ex VAT)

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£79.26 - £227.87 per piece (Inc VAT)
Accoya A1 Grade Rough Sawn Timber Kiln Dried FSC 75 x 150mm (6")

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£99.07 - £284.83 per piece (Ex VAT)

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£118.88 - £341.80 per piece (Inc VAT)

High Performance Accoya is an exceptional high-performance, eco-friendly wood known for its remarkable durability and stability. Through its non-toxic acetylation treatment, Accoya outperforms even the best tropical hardwoods, offering long-lasting...

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£99.07 - £284.83 per piece (Ex VAT)

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£118.88 - £341.80 per piece (Inc VAT)
Accoya A1 Grade Rough Sawn Timber Kiln Dried FSC 75 x 200mm (8")

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£156.19 - £449.04 per piece (Ex VAT)

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£187.43 - £538.85 per piece (Inc VAT)

FSC certified Accoya rough sawn timber, kiln dried for outstanding durability and stability in external projects. Buy online or Click & Collect today.

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£156.19 - £449.04 per piece (Ex VAT)

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£187.43 - £538.85 per piece (Inc VAT)
ArborDeck Timber Decking & Rail UC3u Treated Smooth 38 x 150 x 3600mm (6") (Finished Size 32x145mm)

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£26.12 per piece (Inc VAT)

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£21.77 per piece (Ex VAT)

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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£26.12 per piece (Inc VAT)

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£21.77 per piece (Ex VAT)
ArborDeck Timber Decking UC3u Treated Grooved or Reeded Reversible 32 x 150 x 2400mm (6") (Finished Size 27x145mm)

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£10.43 each (Inc VAT)

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£8.69 each (Ex VAT)

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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£10.43 each (Inc VAT)

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£8.69 each (Ex VAT)
ArborDeck Timber Decking UC3u Treated Grooved or Reeded Reversible 32 x 150 x 2700mm (6") (Finished Size 27x145mm)

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£11.72 each (Inc VAT)

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£9.77 each (Ex VAT)

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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£11.72 each (Inc VAT)

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£9.77 each (Ex VAT)
ArborDeck Timber Decking UC3u Treated Grooved or Reeded Reversible 32 x 150 x 3000mm (6") (Finished Size 27x145mm)

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£13.03 per piece (Inc VAT)

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£10.86 per piece (Ex VAT)

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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£13.03 per piece (Inc VAT)

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£10.86 per piece (Ex VAT)
ArborDeck Timber Decking UC3u Treated Grooved or Reeded Reversible 32 x 150 x 3300mm (6") (Finished Size 27x145mm)

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£14.34 each (Inc VAT)

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£11.95 each (Ex VAT)

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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£14.34 each (Inc VAT)

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£11.95 each (Ex VAT)
ArborDeck Timber Decking UC3u Treated Grooved or Reeded Reversible 32 x 150 x 3600mm (6") (Finished Size 27x145mm)

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£15.64 per piece (Inc VAT)

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£13.03 per piece (Ex VAT)

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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£15.64 per piece (Inc VAT)

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£13.03 per piece (Ex VAT)
ArborDeck Timber Decking UC3u Treated Grooved or Reeded Reversible 32 x 150 x 3900mm (6") (Finished Size 27x145mm)

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£16.94 each (Inc VAT)

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£14.12 each (Ex VAT)

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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£16.94 each (Inc VAT)

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£14.12 each (Ex VAT)
ArborDeck Timber Decking UC3u Treated Grooved or Reeded Reversible 32 x 150 x 4200mm (6") (Finished Size 27x145mm)

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£18.24 per piece (Inc VAT)

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£15.20 per piece (Ex VAT)

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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£18.24 per piece (Inc VAT)

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£15.20 per piece (Ex VAT)
ArborDeck Timber Decking UC3u Treated Grooved or Reeded Reversible 32 x 150 x 4500mm (6") (Finished Size 27x145mm)

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£19.55 each (Inc VAT)

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£16.29 each (Ex VAT)

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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£19.55 each (Inc VAT)

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£16.29 each (Ex VAT)
ArborDeck Timber Decking UC3u Treated Grooved or Reeded Reversible 32 x 150 x 5100mm (6") (Finished Size 27x145mm)

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£22.15 each (Inc VAT)

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£18.46 each (Ex VAT)

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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£22.15 each (Inc VAT)

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£18.46 each (Ex VAT)
ArborDeck Timber Decking UC3u Treated Grooved or Reeded Reversible 32 x 150 x 5400mm (6") (Finished Size 27x145mm)

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£23.46 each (Inc VAT)

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£19.55 each (Ex VAT)

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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£23.46 each (Inc VAT)

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£19.55 each (Ex VAT)
ArborDeck Timber Decking UC3u Treated Grooved or Reeded Reversible 38 x 125 x 3000mm (5") (Finished Size 33x120mm)

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£12.90 each (Inc VAT)

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£10.75 each (Ex VAT)

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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£12.90 each (Inc VAT)

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£10.75 each (Ex VAT)
Special Offer

Special Offer

ArborDeck Timber Decking UC3u Treated Grooved or Reeded Reversible 38 x 125 x 5100mm (5") (Finished Size 33x120mm)

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WAS £30.70

£18.05 each (Inc VAT)

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WAS £25.58

£15.04 each (Ex VAT)

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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WAS £30.70

£18.05 each (Inc VAT)

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WAS £25.58

£15.04 each (Ex VAT)
ArborDeck Timber Decking UC3u Treated Smooth or Grooved Reversible 32 x 150 x 2400mm (6") (Finished Size 27x145mm)

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£10.43 per piece (Inc VAT)

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£8.69 per piece (Ex VAT)

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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£10.43 per piece (Inc VAT)

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£8.69 per piece (Ex VAT)
ArborDeck Timber Decking UC3u Treated Smooth or Grooved Reversible 32 x 150 x 2700mm (6") (Finished Size 27x145mm)

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£11.72 each (Inc VAT)

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£9.77 each (Ex VAT)

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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£11.72 each (Inc VAT)

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£9.77 each (Ex VAT)
ArborDeck Timber Decking UC3u Treated Smooth or Grooved Reversible 32 x 150 x 3300mm (6") (Finished Size 27x145mm)

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£14.34 each (Inc VAT)

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£11.95 each (Ex VAT)

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...

WAS: each

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£14.34 each (Inc VAT)

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£11.95 each (Ex VAT)
ArborDeck Timber Decking UC3u Treated Smooth or Grooved Reversible 32 x 150 x 3900mm (6") (Finished Size 27x145mm)

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£16.94 each (Inc VAT)

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£14.12 each (Ex VAT)

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...

WAS: each

WAS

£16.94 each (Inc VAT)

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£14.12 each (Ex VAT)
ArborDeck Timber Decking UC3u Treated Smooth or Grooved Reversible 32 x 150 x 4500mm (6") (Finished Size 27x145mm)

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£19.55 per piece (Inc VAT)

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£16.29 per piece (Ex VAT)

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...

WAS: per piece

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£19.55 per piece (Inc VAT)

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£16.29 per piece (Ex VAT)
ArborDeck Timber Decking UC3u Treated Smooth or Grooved Reversible 32 x 150 x 5100mm (6") (Finished Size 27x145mm)

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£22.15 each (Inc VAT)

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£18.46 each (Ex VAT)

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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£22.15 each (Inc VAT)

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£18.46 each (Ex VAT)
ArborDeck Timber Decking UC3u Treated Smooth or Grooved Reversible 32 x 150 x 5700mm (6") (Finished Size 27x145mm)

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£24.76 each (Inc VAT)

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£20.63 each (Ex VAT)

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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£24.76 each (Inc VAT)

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£20.63 each (Ex VAT)
ArborDeck Timber Decking UC3u Treated Smooth or Grooved Reversible 38 x 125 x 4200mm (5") (Finished Size 33x120mm)

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£23.11 per piece (Inc VAT)

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£19.26 per piece (Ex VAT)

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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£23.11 per piece (Inc VAT)

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£19.26 per piece (Ex VAT)

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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.

Shop by Type

Composite Decking

Deck Railing

Decking Boards

Decking Joists

Decking Kits

Decking Fixings

Decking Finishes

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.