Treated Timber | Howarth Timber

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Green Paling Fence Board Treated Rough Sawn Timber UC3u Unseasoned FSC 22 x 100mm (4x1)

WAS: per metre

WAS

£1.82 per metre (Inc VAT)

WAS: per metre

WAS

£1.52 per metre (Ex VAT)

Discover the robustness and sustainability of our Rough Sawn Timber UC3u Treated Green Unseasoned FSC 22x100mm planks, perfect for supporting your outdoor projects. Crafted from responsibly sourced spruce/pine and fir, this timber upholds the full chain...

WAS: per metre

WAS

£1.82 per metre (Inc VAT)

WAS: per metre

WAS

£1.52 per metre (Ex VAT)
C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 47 x 100mm (4x2)

WAS: per metre

WAS

£4.16 per metre (Inc VAT)

WAS: per metre

WAS

£3.47 per metre (Ex VAT)

Discover the incredible strength and versatility of our C16 Timber Joists. These structural wood pieces are kiln dried and expertly pressure treated, making them resistant to wood-destroying fungi and ideal for both indoor and outdoor projects. With...

WAS: per metre

WAS

£4.16 per metre (Inc VAT)

WAS: per metre

WAS

£3.47 per metre (Ex VAT)
C16 Timber UC3u Treated Kiln Dried Regularised FSC 47 x 75mm (3x2)

WAS: per metre

WAS

£3.12 per metre (Inc VAT)

WAS: per metre

WAS

£2.60 per metre (Ex VAT)

Due to the size of this 3x2 C16 graded timber carcassing, we recommended using it purely for vertical non-load bearing stud positions. C16 Timber Joists, expertly crafted for those who seek durability and reliability in construction projects. These...

WAS: per metre

WAS

£3.12 per metre (Inc VAT)

WAS: per metre

WAS

£2.60 per metre (Ex VAT)
Special Offer

Special Offer

C24 Timber Decking Joists UC4 Treated Kiln Dried Regularised Redwood 47 x 100 x 3600mm (4x2)

WAS: each

WAS £18.73

£12.24 each (Inc VAT)

WAS: each

WAS £15.61

£10.20 each (Ex VAT)

Crafted for durability and strength, our C24 Timber Joists UC4 Treated Redwood 47x100x3600mm are the ideal choice for your outdoor decking projects. These joists are UC4 treated, ensuring they are well-suited for ground and water contact, making them...

WAS: each

WAS £18.73

£12.24 each (Inc VAT)

WAS: each

WAS £15.61

£10.20 each (Ex VAT)
C24 Timber Joists UC2 Treated Kiln Dried Regularised PEFC 47 x 100mm (4x2)

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£4.18 - £24.01 per piece (Ex VAT)

WAS

£5.02 - £28.81 per piece (Inc VAT)

C24 Timber Joists UC2 Treated Kiln Dried Regularised PEFC timber is your go-to choice for robust structural applications. C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that...

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WAS:

WAS

£4.18 - £24.01 per piece (Ex VAT)

WAS

£5.02 - £28.81 per piece (Inc VAT)
C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 47 x 150mm (6x2)

WAS: per piece

WAS

£6.24 per piece (Inc VAT)

WAS: per piece

WAS

£5.20 per piece (Ex VAT)

Transform your outdoor spaces with our Timber Floor Joist, designed specifically for external use, making them perfect for decking joists. These robust timber joists are your go-to solution for projects requiring reliable structural support in...

WAS: per piece

WAS

£6.24 per piece (Inc VAT)

WAS: per piece

WAS

£5.20 per piece (Ex VAT)
C24 Timber Joists Untreated Kiln Dried Regularised PEFC 47 x 75mm (3x2)

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£2.90 - £16.68 per piece (Ex VAT)

WAS

£3.48 - £20.02 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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WAS

£2.90 - £16.68 per piece (Ex VAT)

WAS

£3.48 - £20.02 per piece (Inc VAT)
Special Offer

Special Offer

C16 Timber Decking Joists UC4 Treated Brown Incised Kiln Dried Regularised FSC 47 x 100mm (4x2)

WAS: per piece

WAS £4.34

£2.70 per piece (Inc VAT)

WAS: per piece

WAS £3.62

£2.25 per piece (Ex VAT)

These UC4 Treated Brown Incised Kiln Dried Regularised joists are the backbone of a durable and sustainable deck, offering exceptional support for your decking planks. Crafted from premium load bearing C16 graded conifer timber, including spruce and fir,...

WAS: per piece

WAS £4.34

£2.70 per piece (Inc VAT)

WAS: per piece

WAS £3.62

£2.25 per piece (Ex VAT)
Special Offer

Special Offer

C24 Timber Joists UC4 Treated Redwood 47 x 150 x 3600mm (6x2)

WAS: each

WAS £28.10

£18.36 each (Inc VAT)

WAS: each

WAS £23.42

£15.30 each (Ex VAT)

Discover the exceptional quality of our C24 Timber Joists, expertly crafted to support your decking projects with strength and reliability. Made from premium UC4 treated Redwood, these joists are ideal for outdoor use and can withstand direct ground...

WAS: each

WAS £28.10

£18.36 each (Inc VAT)

WAS: each

WAS £23.42

£15.30 each (Ex VAT)
C24 Timber UC2 Treated Kiln Dried Regularised PEFC 47 x 75mm (3x2)

WAS:

WAS:

WAS

£3.13 - £18.01 per piece (Ex VAT)

WAS

£3.76 - £21.61 per piece (Inc VAT)

Main usage is for vertical non-load bearing stud positions. Due to the size of this 3x2 C24 graded timber carcassing, we recommended using it purely for vertical non-load bearing stud positions. C16 and C24 are strength grades; the higher the grade, the...

WAS:

WAS:

WAS

£3.13 - £18.01 per piece (Ex VAT)

WAS

£3.76 - £21.61 per piece (Inc VAT)
Special Offer

Special Offer

C24 Timber Joists UC4 Treated Redwood 47 x 100 x 4800mm (4x2)

WAS: each

WAS £21.07

£16.32 each (Inc VAT)

WAS: each

WAS £17.56

£13.60 each (Ex VAT)

Elevate your outdoor projects with C24 Treated Timber Decking Joists, meticulously crafted from premium Redwood and UC4 treated for exceptional ground contact durability. These joists are engineered from dense Scandinavian softwood, offering...

WAS: each

WAS £21.07

£16.32 each (Inc VAT)

WAS: each

WAS £17.56

£13.60 each (Ex VAT)
C24 Timber Joists Untreated Kiln Dried Regularised PEFC 47 x 100mm (4x2)

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£3.87 - £22.24 per piece (Ex VAT)

WAS

£4.64 - £26.69 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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£3.87 - £22.24 per piece (Ex VAT)

WAS

£4.64 - £26.69 per piece (Inc VAT)
C24 Timber Joists Untreated Kiln Dried Regularised PEFC 47 x 150mm (6x2)

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£5.80 - £33.36 per piece (Ex VAT)

WAS

£6.96 - £40.03 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...

WAS:

WAS:

WAS

£5.80 - £33.36 per piece (Ex VAT)

WAS

£6.96 - £40.03 per piece (Inc VAT)
Special Offer

Special Offer

C16 Timber Decking Joists UC4 Treated Brown Incised Kiln Dried Regularised FSC 47 x 150mm (6x2)

WAS: per piece

WAS £6.52

£4.03 per piece (Inc VAT)

WAS: per piece

WAS £5.43

£3.36 per piece (Ex 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...

WAS: per piece

WAS £6.52

£4.03 per piece (Inc VAT)

WAS: per piece

WAS £5.43

£3.36 per piece (Ex VAT)
Special Offer

Special Offer

C24 Timber Joists UC4 Treated Redwood 47 x 150 x 4800mm (6x2)

WAS: each

WAS £37.46

£24.49 each (Inc VAT)

WAS: each

WAS £31.22

£20.41 each (Ex VAT)

Add the long lasting UC4 C24 Timber Joists to your garden, expertly designed for durability and strength. Ideal for constructing robust decking structures, these joists are UC4 treated, ensuring they withstand direct ground contact and resist moisture,...

WAS: each

WAS £37.46

£24.49 each (Inc VAT)

WAS: each

WAS £31.22

£20.41 each (Ex VAT)
Rough Sawn Timber Untreated Unseasoned FSC 22 x 100mm (4x1)

WAS: per piece

WAS

£1.68 per piece (Inc VAT)

WAS: per piece

WAS

£1.40 per piece (Ex VAT)

Unseasoned Timber This means the timber has not yet dried to a moisture content matched to its intended environment, which means it can still be used for for purpose. However you need to be aware of any shrinkage that may occur. Ungraded Timber This...

WAS: per piece

WAS

£1.68 per piece (Inc VAT)

WAS: per piece

WAS

£1.40 per piece (Ex VAT)
C24 Timber Joists UC2 Treated Kiln Dried Regularised PEFC 47 x 150mm (6x2)

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£6.26 - £36.02 per piece (Ex VAT)

WAS

£7.51 - £43.22 per piece (Inc VAT)

C24-treated timber joists are a top choice for structural applications, including stud walls, roof and floor joists, and joinery. With a smaller cross-section than C16, they can support higher loads and longer spans. Discover the unparalleled strength...

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£6.26 - £36.02 per piece (Ex VAT)

WAS

£7.51 - £43.22 per piece (Inc VAT)
C24 Timber Joists UC2 Treated Kiln Dried Regularised FSC 47 x 100mm (4x2)

WAS:

WAS:

WAS

£4.18 - £24.01 per piece (Ex VAT)

WAS

£5.02 - £28.81 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...

WAS:

WAS:

WAS

£4.18 - £24.01 per piece (Ex VAT)

WAS

£5.02 - £28.81 per piece (Inc VAT)
C24 Timber Joists UC2 Treated Kiln Dried Regularised PEFC 47 x 125mm (5x2)

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£5.22 - £30.02 per piece (Ex VAT)

WAS

£6.26 - £36.02 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...

WAS:

WAS:

WAS

£5.22 - £30.02 per piece (Ex VAT)

WAS

£6.26 - £36.02 per piece (Inc VAT)
C16 Timber UC2 Treated Kiln Dried Regularised PEFC 47 x 75mm (3x2)

WAS:

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WAS

£3.13 - £18.01 per piece (Ex VAT)

WAS

£3.76 - £21.61 per piece (Inc VAT)

C16 graded carcassing is a structural timber commonly used for stud walls, roof and floor joists, and structural joinery. C16 is normally the grade that is produced from faster grown UK timber. It is machined to have rounded edges, smooth faces, and...

WAS:

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WAS

£3.13 - £18.01 per piece (Ex VAT)

WAS

£3.76 - £21.61 per piece (Inc VAT)
C16 Timber Joists Untreated Kiln Dried Regularised FSC 47 x 100mm (4x2)

WAS: per piece

WAS

£3.82 per piece (Inc VAT)

WAS: per piece

WAS

£3.18 per piece (Ex 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...

WAS: per piece

WAS

£3.82 per piece (Inc VAT)

WAS: per piece

WAS

£3.18 per piece (Ex VAT)
C24 Timber Joists UC2 Treated Kiln Dried Regularised PEFC 47 x 200mm (8x2)

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£8.35 - £48.03 per piece (Ex VAT)

WAS

£10.02 - £57.64 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...

WAS:

WAS:

WAS

£8.35 - £48.03 per piece (Ex VAT)

WAS

£10.02 - £57.64 per piece (Inc VAT)
C16 Timber Untreated Kiln Dried Regularised FSC 47 x 75mm (3x2)

WAS: per piece

WAS

£2.86 per piece (Inc VAT)

WAS: per piece

WAS

£2.38 per piece (Ex 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...

WAS: per piece

WAS

£2.86 per piece (Inc VAT)

WAS: per piece

WAS

£2.38 per piece (Ex VAT)
C24 Timber Joists Untreated Kiln Dried Regularised PEFC 47 x 175mm (7x2)

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£6.77 - £38.92 per piece (Ex VAT)

WAS

£8.12 - £46.70 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...

WAS:

WAS:

WAS

£6.77 - £38.92 per piece (Ex VAT)

WAS

£8.12 - £46.70 per piece (Inc VAT)

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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.