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Rough Sawn Timber UC3u Treated Green Unseasoned FSC 22 x 100mm (4x1)
£1.90 - £10.93 per piece (Ex VAT)£2.28 - £13.12 per piece (Inc VAT)Treated timber is suitable to be used externally and is suitable for wet areas, however UC3u treated timber shouldn't be used for in-ground or water contact. Examples of UC3u treated timber uses are outdoor decking, shed bases, posts, sleepers... -
C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 44 x 95 x 4800mm (4x2)
£4.28 - £24.63 per piece (Ex VAT)£5.14 - £29.56 per piece (Inc VAT)Our planed & regularised treated sawn timber is perfect for structural timber carcassing as it comes in������C24 grade. This timber is ideal for a number of uses in the home and garden. The pressure treatment on this timber protects it against wood... -
Timber Floor Joist UC3u Treated C16 FSC 44 x 145mm (6x2)
£6.43 - £36.94 per piece (Ex VAT)£7.72 - £44.33 per piece (Inc VAT)Our treated timber floor joists are designed for external use, making them ideal for wet areas or direct ground contact. Common applications include timber decking joists, shed bases, posts, and sleepers. Available in various timber joist dimensions,... -
C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 47 x 75mm (3x2)
£3.25 - £18.67 per piece (Ex VAT)£3.90 - £22.40 per piece (Inc VAT)Treated timber is suitable to be used externally and is suitable for wet areas or areas where the timber will be coming into contact with the ground. Examples of treated timber uses are outdoor decking, shed bases, posts, sleepers. Regularised timber has... -
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C24 Timber Joists UC4 Treated Redwood 47 x 100 x 3600mm (4x2)
C24 deck joists are perfect for supporting your decked area. This timber is UC4 treated, meaning that not only is it ideal for outdoor use, but it is also suitable for direct contact with the ground. C24 graded timber is a premium loadbearing grade... -
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C16 Timber Joists UC4 Treated Brown Incised Kiln Dried Regularised FSC 47 x 100mm (4x2)
£2.36 - £13.59 per piece (Ex VAT)£2.83 - £16.31 per piece (Inc VAT)This C16 deck joists make the perfect companion for your decking area, as they support the decking planks in place. Featuring UC4 treatment, means that not only is it ideal for outdoor use, but it is also suitable for direct contact with the ground. C16... -
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C24 Timber Joists UC4 Treated Redwood 47 x 150 x 3600mm (6x2)
C24 deck joists are perfect for supporting your decked area. This timber is UC4 treated, meaning that not only is it ideal for outdoor use, but it is also suitable for direct contact with the ground. C24 graded timber is a premium loadbearing grade... -
Special OfferSpecial Offer
C24 Timber Joists UC4 Treated Redwood 47 x 100 x 4800mm (4x1)
C24 deck joists are perfect for supporting your decked area. This timber is UC4 treated, meaning that not only is it ideal for outdoor use, but it is also suitable for direct contact with the ground. C24 graded timber is a premium loadbearing grade... -
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C16 Timber Joists UC4 Treated Brown Incised Kiln Dried Regularised FSC 47 x 150mm (6x2)
£3.13 - £17.97 per piece (Ex VAT)£3.76 - £21.56 per piece (Inc VAT)C16 deck joists are perfect for supporting your decking area, as they sit under your decking planks. This brown timber carcassing is UC4 treated, meaning that not only is it ideal for outdoor use, but it is also suitable for direct contact with the... -
Special OfferSpecial Offer
C24 Timber Joists UC4 Treated Redwood 47 x 150 x 4800mm (6x2)
C24 deck joists are perfect for supporting your decked area. This timber is UC4 treated, meaning that not only is it ideal for outdoor use, but it is also suitable for direct contact with the ground. C24 graded timber is a premium loadbearing grade... -
C16 Timber Joists Untreated Kiln Dried Regularised FSC 44 x 95mm (4x2)
£3.93 - £22.61 per piece (Ex VAT)£4.72 - £27.13 per piece (Inc VAT)C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher... -
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C24 Timber Joists UC4 Treated Green PEFC 45 x 145mm (6x2)
£4.50 - £25.88 per piece (Ex VAT)£5.40 - £31.06 per piece (Inc VAT)Our C24 timber joists are ideal for supporting your decked area. This timber is treated with UC4 preservative, meaning that not only is it ideal for outdoor use, but it is also suitable for direct contact with the ground. C24 graded timber is produced... -
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C24 Timber Joists UC4 Treated Green PEFC 45 x 95mm (4x2)
£3.00 - £17.25 per piece (Ex VAT)£3.60 - £20.70 per piece (Inc VAT)Our C24 timber joists are a perfect for supporting your decked area. This timber is UC4 treated, meaning that not only is it ideal for outdoor use, but it is also suitable for direct contact with the ground. C24 graded timber is produced from slower... -
C16 Timber Joists Untreated Kiln Dried Regularised FSC 44 x 195mm (8x2)
£7.87 - £45.23 per piece (Ex VAT)£9.44 - £54.28 per piece (Inc VAT)C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher... -
C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 44 x 120mm (5x2)
£5.35 - £30.79 per piece (Ex VAT)£6.42 - £36.95 per piece (Inc VAT)Treated timber is suitable to be used externally and is suitable for wet areas or areas where the timber will be coming into contact with the ground. Examples of treated timber uses are outdoor decking, shed bases, posts, sleepers. Regularised timber has... -
C16 Timber Joists Untreated Kiln Dried Regularised FSC 44 x 170mm (7x2)
£6.88 - £39.57 per piece (Ex VAT)£8.26 - £47.48 per piece (Inc VAT)C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher... -
C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 44 x 195mm (8x2)
£8.57 - £49.26 per piece (Ex VAT)£10.28 - £59.11 per piece (Inc VAT)Treated timber is suitable to be used externally and is suitable for wet areas or areas where the timber will be coming into contact with the ground. Examples of treated timber uses are outdoor decking, shed bases, posts, sleepers. Regularised timber has... -
C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 44 x 220mm (9x2)
£9.64 - £55.42 per piece (Ex VAT)£11.57 - £66.50 per piece (Inc VAT)Treated timber is suitable to be used externally and is suitable for wet areas or areas where the timber will be coming into contact with the ground. Examples of treated timber uses are outdoor decking, shed bases, posts, sleepers. Regularised timber has... -
C16 Timber Joists Untreated Kiln Dried Regularised FSC 44 x 150mm (6x2)
£5.90 - £33.92 per piece (Ex VAT)£7.08 - £40.70 per piece (Inc VAT)C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher... -
C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 44 x 170mm (7x2)
£7.50 - £43.10 per piece (Ex VAT)£9.00 - £51.72 per piece (Inc VAT)Treated timber is suitable to be used externally and is suitable for wet areas or areas where the timber will be coming into contact with the ground. Examples of treated timber uses are outdoor decking, shed bases, posts, sleepers. Regularised timber has... -
C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 72 x 97mm (4x3)
£6.84 - £39.30 per piece (Ex VAT)£8.21 - £47.16 per piece (Inc VAT)Treated timber is suitable to be used externally and is suitable for wet areas or areas where the timber will be coming into contact with the ground. Examples of treated timber uses are outdoor decking, shed bases, posts, sleepers. Regularised timber has... -
C16 Timber Joists Untreated Kiln Dried Regularised FSC 44 x 220mm (9x2)
£8.85 - £50.88 per piece (Ex VAT)£10.62 - £61.06 per piece (Inc VAT)C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher... -
Special OfferSpecial Offer
C16 Timber Joists UC4 Treated Green Incised Kiln Dried Regularised FSC 47 x 150mm (6x2)
£3.00 - £17.25 per piece (Ex VAT)£3.60 - £20.70 per piece (Inc VAT)C16 deck joists are perfect for supporting your decked area. This timber is UC4 treated, meaning that not only is it ideal for outdoor use, but it is also suitable for direct contact with the ground. C16 graded timber is home grown conifer timber such as... -
C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 72 x 145mm (6x3)
£10.25 - £58.95 per piece (Ex VAT)£12.30 - £70.74 per piece (Inc VAT)Treated timber is suitable to be used externally and is suitable for wet areas or areas where the timber will be coming into contact with the ground. Examples of treated timber uses are outdoor decking, shed bases, posts, sleepers. Regularised timber has...
Our range of treated timber is designed for durability and weather resistance. Perfect for both indoor and outdoor projects, it offers strength you can rely on. Every length is pressure treated timber to protect against rot, decay, and insects.
Whether you need small sections or heavy-duty sizes, we’ve got it covered. Popular options include:
- 4x2 treated timber – ideal for framing and structural work.
- 3x2 treated timber – great for smaller stud walls and internal jobs.
- 6x2 treated timber – perfect for joists and heavy load projects.
- 2x2 treated timber – a handy choice for battening or light frames.
- 4x2 timber treated – a versatile option for many DIY tasks.
All pieces are manufactured to high standards, ensuring long-lasting performance for construction and garden projects.
Why choose pressure treated timber?
Pressure treated timber is timber that has been infused with preservatives under high pressure. This process helps the wood resist moisture and pests, giving you peace of mind for years. It’s the smart choice for outdoor structures like decking, sheds, or fencing.
Can you paint treated timber?
Yes, you can. Many customers ask, “can you paint treated timber?” The answer is simple – once the wood is fully dry, you can paint or stain it to suit your style. This adds another layer of protection while improving the look of your project.
Explore our full range of treated timber in different sizes to suit every job. With quality, durability, and affordability combined, our timber is built to last.