Decking Boards
Browse our full range of timber decking boards across multiple species and profiles. Suitable for DIY and professional landscaping projects.
Versatile
Graded
Natural
Various
13 products
In Stock
Premium Austrian Larch Decking 27x144mm Reversible Smooth/Reeded & Flat 4.0mtr long
Austrian Larch is a naturally durable, high-performance decking timber that can be oiled or stained to deepen its colour, or left untreated to weather naturally into an elegant silver-grey. We supply slow-grown Austrian Larch heartwood from sustainable European forests that are PEFC Certified, giving you a responsible, premium-grade decking option with full traceability.
A superb alternative to Siberian Larch
If you’re looking for the closest match to Siberian Larch, Austrian Larch is one of the best options available. Like Siberian Larch, it is highly resinous, dense, and extremely hard-wearing, making it ideal for outdoor use where durability matters. Its natural resistance to the elements means it performs exceptionally well without added preservatives, offering a strong, stable, long-lasting deck at excellent value.
Austrian Larch is also a great alternative to hardwood decking where you want a natural product with no chemical treatment, but still need a robust timber that stands up to daily use and changing weather.
Premium slow-grown quality
Our Austrian Larch is sourced from Austrian alpine regions with long, cold winters and short summers. Timber grown in these conditions develops tight growth rings, refined grain structure, and higher density, all of which contribute to superior outdoor performance, stability, and a clean finished look. This slow-grown characteristic is a key reason Austrian Larch is so widely respected as a premium decking softwood.
Reversible profile & optional finishes
Total Price
£220.00
Coverage
0.00 m²
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£5.00
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0.00 m²
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£5.00
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0.00 m²
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£737.50
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0.00 m²
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£1,121.00
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0.00 m²
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Green treated UC3 softwood pine deck boards one side flat, grooved on reverse 28x145mm
28x145mm Green Treated Softwood. Our affordable Softwood Green Treated Decking doesn’t compromise on quality. We offer great value as well as transforming your garden into a beautiful outdoor space. Machine cut from A/B Grade Redwood to provide a long-lasting and high-quality product. You can choose between a smooth or reeded surface with these reversible boards. To maximise the lifespan of the wooden decking, we treat it with a preservative to protect against rot and insect infestation i.e tanalised. Treated timber decking not only looks amazing but also fits seamlessly into the natural aesthetic of any garden. Landscape gardens, balconies, pools and spas will all benefit from this type of decking. For Decking fixing, we recommend Stainless Steel Decking Screw 4.5x65mm. The Decking is Sold in bundles of 10 pieces.
Total Price
£5.00
Coverage
0.00 m²
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In Stock
Green treated UC3 softwood pine deck boards one side flat, grooved on reverse 28 x 120mm
Our 28x120mm – Green Treated Softwood Decking, sold in packs of 4, offers a perfect blend of quality and affordability. Machine-cut from A/B Grade Redwood, this decking is built to last, making it an excellent choice for transforming your garden into a stunning outdoor space.
These reversible boards feature the most commonly used UK timber decking profile, giving you the option to choose between a smooth or grooved surface to suit your design preferences. Each board is pressure treated (tanalised) with a high-performance preservative to protect against rot and insect infestation, ensuring durability and long-lasting performance.
Whether you’re enhancing a landscaped garden, creating a relaxing balcony, or upgrading a pool or spa area, this green treated decking will blend seamlessly with your outdoor aesthetic. Treated timber decking not only elevates the look of your space but also provides the added benefit of increased protection and longevity.
Total Price
£47.89
Coverage
0.00 m²
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Decking
In Stock
Softwood Decking Green Treated 28x145mm 10 pieces Reeded with a flat surface 600mm
Our affordable Softwood Green Treated Decking doesn’t compromise on quality. We offer great value as well as transforming your garden into a beautiful outdoor space.
Machine cut from A/B Grade Redwood to provide a long-lasting and high-quality product. You can choose between a smooth or reeded surface with these reversible boards.
To maximise the lifespan of the wooden decking, we treat it with a preservative to protect against rot and insect infestation. Treated timber decking not only looks amazing but also fits seamlessly into the natural aesthetic of any garden. Landscape gardens, balconies, pools and spas will all benefit from this type of decking.
For Decking fixing, we recommend Stainless Steel Decking Screw 4.5x65mm.
Green Treated Softwood Reversible Decking
Reversible decking
Dual-sided: grooved, reeded/small grooves with a flat surface
Slow grown Scandinavian Redwood
Quick and easy to install
Available in long lengths
Pressure-treated Tanalith E (Tanalised) in Green for protection against decay UC3
Sourced from Sustainable Forests and PEFC Certified
Timber Quality is A/B Grade.
Total Price
£72.00
Coverage
0.00 m²
Added to cart
Decking
In Stock
Green treated UC3 softwood pine deck boards one side flat, grooved on reverse 28x145mm 10 pieces 600mm length
Softwood Green Treated Decking doesn’t compromise on quality. Machine cut from A/B Grade Timber to provide a long-lasting and high-quality product. You can choose between a smooth or grooved surface with these reversible boards.
To maximize the lifespan of the wooden decking, we treat it with a preservative to protect against rot and insect infestation. Treated timber decking not only looks amazing but also fits seamlessly into the natural aesthetic of any garden. Landscape gardens, balconies, pools and spas will all benefit from this type of decking.
Total Price
£72.00
Coverage
0.00 m²
Added to cart
Sample
In Stock
Thermowood Redwood D For Cladding Or Decking Smooth Both Sides Square 26x118mm Sample
Thermowood can be used for both cladding and decking so is this profile which is smooth both sides with small eased edges. Thermowood is a durable product. which takes wood finishes e.g oils and coatings well if required. We supply Thermowood Redwood D Square profile in bundles of 5 pieces 4.2mtr long.
The samples sent out to you in the post will only be one piece; the images are of multiple pieces to see the fitting of the product and how it looks placed together.
Total Price
£4.50
Coverage
0.00 m²
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Choosing decking boards for a UK garden
Decking boards are the visible surface of a deck, laid across a frame of joists. The right choice depends on how much maintenance you want to do, how the deck will be used and how long you expect it to last. Our range covers several species, so you can compare them side by side.
Decking options
- Siberian larch: a dense, naturally durable softwood that weathers to a silver grey. See Siberian larch decking.
- Thermally modified timber: heat treated for stability and rot resistance without chemicals. See Thermowood decking.
- Yellow balau: a hard, dense tropical hardwood with a long outdoor record. See yellow balau decking.
If the deck will be wet a lot, such as near a pool or on a shaded patio, read about anti-slip decking before you order.
How much to order
Measure the deck area in square metres, then work out the linear metres of board by dividing by the board width plus the gap. Add about 10% for offcuts and mistakes. Boards laid on a diagonal need a little more.
Laying the boards
- Support the boards on a level frame with joists at 400 mm centres. Our decking substructure joists are made for this job.
- Leave a gap of 5 to 8 mm between boards so water drains and the timber can move.
- Where boards are grooved, check the manufacturer guidance on whether to lay the groove side up or down. Many people lay the grooved face up for grip.
- Keep the underside ventilated. Air must be able to move beneath the deck, and ground should be covered with a weed membrane and drained.
- Seal cut ends with end-grain preserver, and use pedestals on hard surfaces such as roofs and patios to lift the frame.
Use stainless steel decking screws, pre-drilling near board ends to avoid splitting. Find them in screws, nails and accessories.
Finishing and maintenance
Any decking can be left to weather naturally, or you can apply an oil to keep the original colour. Sweep off leaves and brush the surface now and then to stop algae building up. Our finishes and treatments include oils suited to decking.
Not sure yet?
Colour and grain are hard to judge on a screen. Order a free timber sample to see the real thing in your own light, or call us on 0161 504 0011. Shop prices include VAT and UK delivery, and many items ship next day.
Decking Boards FAQs
Common questions about our decking boards specifications, applications, and ordering.