Howarth Timber & Building Supplies

News & Information (3)

Understanding Use Class UC4

Consumer and contract law require that any product offered for sale must be fit for its intended use and a wood product impregnated with preservative is no exception. The minimum standards for the ...

Treated Timber Use Classes Explained

Not all timber is created equally. When you're working on outdoor projects, choosing the right type of treated wood is vital. Different jobs need different treatments to protect the timber from weath ...

How to build a raised garden bed with sleepers

Incorporating raised beds in the garden is one of the easiest and most effective ways to transform your outdoor space. Whether you're growing vegetables, herbs, or flowers, a raised garden bed offers ...

Products (60)

Green Incised Softwood UC4 Treated Garden Sleeper 95 x 195 x 2400mm

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£40.82 each (Inc VAT)

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£34.02 each (Ex VAT)

Sleepers are a fantastic multipurpose feature for garden and landscaping projects. Popular uses include raised garden beds, pathways, edging or borders, steps, and even fences or walls. These...

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£40.82 each (Inc VAT)

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£34.02 each (Ex VAT)
Rough Sawn Timber UC3u Treated Green Unseasoned FSC 22 x 150mm (6x1)

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£2.85 - £16.39 per piece (Ex VAT)

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£3.42 - £19.67 per piece (Inc VAT)

Discover the unparalleled versatility and sustainability of our Rough Sawn Timber UC3u Treated Green Unseasoned FSC 22 x 150mm fencing boards. Crafted from FSC certified timber, with full chain of...

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£2.85 - £16.39 per piece (Ex VAT)

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£3.42 - £19.67 per piece (Inc VAT)
Green Incised Fence Post UC4 Treated Timber FSC 75 x 75 x 1800mm

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£8.88 each (Inc VAT)

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£7.40 each (Ex VAT)

Green Incised UC4 Treated Fence Post, suitable for all fencing applications. The incising process helps the pressure treatment penetrate further into the timber. Manufactured from FSC certified...

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£8.88 each (Inc VAT)

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£7.40 each (Ex VAT)
C24 Timber Joists UC4 Treated Redwood 47 x 100 x 3600mm (4x2)

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£18.73 each (Inc VAT)

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£15.61 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...

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£18.73 each (Inc VAT)

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£15.61 each (Ex VAT)
Wooden Fence Post UC4 FSC 75 x 75 x 2400mm

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£11.84 each (Inc VAT)

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£9.87 each (Ex VAT)

Crafted for durability and sustainability, the Wooden Fence Post UC4 FSC 75x75x2400mm is the ideal choice for your outdoor projects. Designed with an incised pattern, it allows deeper penetration of...

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£11.84 each (Inc VAT)

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£9.87 each (Ex VAT)
C16 Timber Joists UC4 Treated Brown Incised Kiln Dried Regularised FSC 47 x 100mm (4x2)

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£4.20 - £24.16 per piece (Ex VAT)

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£5.04 - £28.99 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...

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£4.20 - £24.16 per piece (Ex VAT)

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£5.04 - £28.99 per piece (Inc VAT)
Green Incised Fence Post UC4 Treated Timber FSC 100 x 100 x 2400mm

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£21.06 each (Inc VAT)

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£17.55 each (Ex VAT)

The Pressure Treated Timber posts provide a decorative alternative to concrete posts. As these are pressure treated they will last longer than the ordinary timber posts. Fence panels are fitted to...

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£21.06 each (Inc VAT)

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£17.55 each (Ex VAT)
C24 Timber Joists UC4 Treated Redwood 47 x 150 x 3600mm (6x2)

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£28.09 each (Inc VAT)

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£23.41 each (Ex VAT)

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...

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£28.09 each (Inc VAT)

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£23.41 each (Ex VAT)
C24 Timber Joists UC4 Treated Redwood 47 x 100 x 4800mm (4x1)

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£21.07 each (Inc VAT)

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£17.56 each (Ex VAT)

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...

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£21.07 each (Inc VAT)

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£17.56 each (Ex VAT)
Incised Fencing Post UC4 Treated Green Sawn Diamand Top (4 Way) FSC 150 x 150 x 3000mm

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£61.01 each (Inc VAT)

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£50.84 each (Ex VAT)

This FSC-certified UC4 treated wood fence post was sustainably sourced and Green Treated, making it ideal for ground contact in fencing or decking posts, as it can be frequently wet. This timber was...

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£61.01 each (Inc VAT)

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£50.84 each (Ex VAT)
C16 Timber Joists UC4 Treated Brown Incised Kiln Dried Regularised FSC 47 x 150mm (6x2)

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£6.30 - £36.24 per piece (Ex VAT)

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£7.56 - £43.49 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,...

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£6.30 - £36.24 per piece (Ex VAT)

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£7.56 - £43.49 per piece (Inc VAT)
Incised Fencing Post UC4 Treated Green Sawn Diamond Top (4 Way) FSC 150 x 150 x 2400mm

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£48.83 each (Inc VAT)

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£40.69 each (Ex VAT)

This FSC-certified UC4 treated wood fence post was sustainably sourced and Green Treated, making it ideal for ground contact in fencing. This timber was incised throughout the production process to...

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£48.83 each (Inc VAT)

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£40.69 each (Ex VAT)
C24 Timber Joists UC4 Treated Redwood 47 x 150 x 4800mm (6x2)

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£37.46 each (Inc VAT)

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£31.22 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...

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£37.46 each (Inc VAT)

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£31.22 each (Ex VAT)
Wood Fence Post UC4 FSC 100 x 100 x 3000mm

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£26.32 each (Inc VAT)

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£21.93 each (Ex VAT)

This Pressure Treated Wood Fence Post provides a stylish and durable alternative to traditional concrete posts. Designed to last longer than ordinary timber posts, these wood fence posts are pressure...

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£26.32 each (Inc VAT)

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£21.93 each (Ex VAT)
Green Incised Fence Post UC4 Treated Timber FSC 100 x 100 x 1800mm

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£15.79 each (Inc VAT)

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£13.16 each (Ex VAT)

Elevate your garden's appeal and functionality with the Green Incised Fence Post UC4 Treated Timber, a robust and environmentally conscious choice for your outdoor projects. These wooden fence posts...

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£15.79 each (Inc VAT)

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£13.16 each (Ex VAT)
Brown Incised Fence Post UC4 Treated Timber FSC 75 x 75 x 2400mm

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£12.10 each (Inc VAT)

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£10.08 each (Ex VAT)

Pailing Fencing Panels and timber pailing fence are an elegant wood fence panel that enables air to pass through, making them suitable for settings requiring adequate air circulation and a cosmetic...

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£12.10 each (Inc VAT)

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£10.08 each (Ex VAT)
C24 Timber Joists UC4 Treated Green PEFC 45 x 145mm (6x2)

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£6.49 - £37.30 per piece (Ex VAT)

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£7.79 - £44.76 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...

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£6.49 - £37.30 per piece (Ex VAT)

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£7.79 - £44.76 per piece (Inc VAT)
C24 Timber Joists UC4 Treated Green PEFC 45 x 95mm (4x2)

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£4.32 - £24.86 per piece (Ex VAT)

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£5.18 - £29.83 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...

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£4.32 - £24.86 per piece (Ex VAT)

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£5.18 - £29.83 per piece (Inc VAT)
Brown Incised Fence Post UC4 Treated Timber FSC 100 x 100 x 2400mm

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£21.50 each (Inc VAT)

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£17.92 each (Ex VAT)

The treated fence post has been incised for deeper preservative penetration giving it a 15 year anti-rot guarantee for use in ground contact. Ideal for all fencing projects. Please note: Timber and...

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£21.50 each (Inc VAT)

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£17.92 each (Ex VAT)
Brown Incised Fence Post UC4 Treated Timber FSC 75 x 75 x 1800mm

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£9.07 each (Inc VAT)

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£7.56 each (Ex VAT)

Pailing Fencing Panels and timber pailing fence are an elegant wood fence panel that enables air to pass through, making them suitable for settings requiring adequate air circulation and a cosmetic...

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£9.07 each (Inc VAT)

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£7.56 each (Ex VAT)
Machine Round Pointed Post UC4 Treated Green Redwood Kiln Dried FSC 85 x 1800mm

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£10.36 each (Inc VAT)

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£8.63 each (Ex VAT)

These redwood round pointed posts are a fantastic multipurpose feature for garden and landscaping projects. Popular within the agriculture market but also great for making borders or sections within...

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£10.36 each (Inc VAT)

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£8.63 each (Ex VAT)
Brown Softwood UC3u Treated Garden Sleeper 95 x 195 x 2400mm

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£29.40 each (Inc VAT)

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£24.50 each (Ex VAT)

Sleepers are a fantastic multipurpose feature for garden and landscaping projects. Popular uses include raised garden beds, pathways, edging or borders, steps, and even fences or walls. These brown...

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£29.40 each (Inc VAT)

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£24.50 each (Ex VAT)
Brown Incised Fence Post UC4 Treated Timber FSC 100 x 100 x 3000mm

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£26.88 each (Inc VAT)

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£22.40 each (Ex VAT)

The treated fence post has been incised for deeper preservative penetration giving it a 15 year anti-rot guarantee for use in ground contact. Ideal for all fencing projects. Please note: Timber and...

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£26.88 each (Inc VAT)

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£22.40 each (Ex VAT)
Machine Round Pointed Post UC4 Treated Green Redwood Kiln Dried FSC 100 x 1800mm

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£13.16 each (Inc VAT)

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£10.97 each (Ex VAT)

These redwood round pointed posts are a fantastic multipurpose feature for garden and landscaping projects. Popular within the agriculture market but also great for making borders or sections within...

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£13.16 each (Inc VAT)

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£10.97 each (Ex VAT)

Featured Products

Siniat GTEC Standard Plasterboard Square Edge 2400 x 1200 x 12.5mm

Designed for partitions, linings and ceilings, this standard board is square edged and most suitable for undecorated applications or textured finishes. It is also suitable for gypsum plaster...

Siniat GTEC Cove 120 3000mm

A gypsum plaster moulding manufactured in a larger traditional cove profile, provides an attractive feature at the junction of walls and ceilings.

Unilin Thin-R Pitched Roof Insulation PIR Board 2400 x 1200 x 100mm

Unilin / Xtratherm XT Thermal Liner MF Insulation PIR Board is a composite insulated panel of Unilin / Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge...

Kronospan P5 Chipboard Flooring TG4 FSC 2400 x 600 x 18mm

The Kronospan P5 is the perfect chipboard flooring for adding practical space to your loft area. It is rated Particleboard P5 and therefore designed to be a load-bearing panel for use in dry and...

Kronospan P5 Chipboard Flooring TG4 FSC 2400 x 600 x 22mm

The Kronospan P5 is the perfect chipboard flooring for adding practical space to your loft area. It is rated Particleboard P5 and therefore designed to be a load-bearing panel for use in dry and...

Plywood PRC Mixed Light Hardwood EN636-2S Class 2 FSC 18 x 1220 x 2440mm

MLH (Mixed Light Hardwoods) is an internal and external plywood. It has a light sanded finish, which can be easily cut or painted and has a variety of uses. These include treated exteriors such as...

Plywood PRC Mixed Light Hardwood EN636-2S Class 2 FSC 12 x 1220 x 2440mm

MLH (Mixed Light Hardwoods) is an internal and external plywood. It has a light sanded finish, which can be easily cut or painted and has a variety of uses. These include treated exteriors such as...

Green Incised Softwood UC4 Treated Garden Sleeper 95 x 195 x 2400mm

Sleepers are a fantastic multipurpose feature for garden and landscaping projects. Popular uses include raised garden beds, pathways, edging or borders, steps, and even fences or walls. These...

OSB3 Board Square Edge FSC 2440 x 1220 x 11mm

The OSB is suitable for load bearing applications in construction and all different environmental conditions such as extreme humidity and dryness. The moisture resistant board is engineered for...

OSB3 Board Square Edge FSC 2440 x 1220 x 18mm

Sterling OSB3 is engineered for both industrial and domestic applications, providing exceptional performance in extreme humidity and dryness. This moisture-resistant board is perfect for a wide range...

CLS Timber PEFC 50 x 75 x 2400mm

Canadian Lumber Standard (CLS) is a structural timber available in a variety of sections and lengths most used in construction. CLS has PAR rounded four corners for ease of handling. It has been kiln...

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Timloc Single Pantile Tile Vent Grey (RTV-SPGR )

Profiled roof tile vent to enable ventilation directly into a roof space or connect to a ducted ventilation system. Timloc Building Products has been serving the building industry for over 50 years...

Gutter Trim Internal Corner Black (910017.CB)

These components make the detailing of roof perimeters fast and easy without having to make any compromise.

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Timloc Clip Fit Plastic Access Panel White 205 x 205mm (AP200)

This access panel allows easy access to connectors and concealed services which are hidden in ceilings, ducting and behind dry lined walls. This access panel features a clip fit door panel.

Everbuild 503 SBR Bond 5 Litre (SBR5L)

SBR Bond is a latex based, water resistant bonding agent and admixture for use in areas subject to humidity, dampness and continuous water contact. It improves water resistance of cement mixtures by...

Brett Martin 110mm 0'-30' Adjustable Double Socket Bend Terracotta 110 x 250 x 110mm

Our comprehensive range of underground products include pipes in up to 13 diameters from 58.9mm to 600mm, industry compliant fittings All Brett Martin products including Brett Martin 110mm 0'-30'...

Hanson Multicem Cement Plastic Bag (25kg)

Introducing Hanson Multicem Cement, your go-to solution for reliable and high-quality construction projects. This innovative cement mix is specially formulated for easy spreading, superior water...

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Everbuild Opti-Mix Mortar Plasticiser 1 Litre

The world's first 1:25 plasticiser, Opti-Mix Mortar Plasticiser is essentially Pure Admix that smells and operates like the best traditional Admix. Superior plasticising effect, controlled dosage,...

C24 Timber Joists UC2 Treated Kiln Dried Regularised PEFC 44 x 95mm (4x1)

£4.15 - £23.86 per piece (Ex VAT)

£4.98 - £28.63 per piece (Inc VAT)

Treated C24 is a structural timber that's commonly used for stud walls, roof and floor joists, and structural joinery. The use of C24 grade timber, which has a smaller cross section, allows for...

£4.15 - £23.86 per piece (Ex VAT)

£4.98 - £28.63 per piece (Inc VAT)

C24 Timber Joists Kiln Dried Regularised PEFC 44 x 95mm (4x1)

£3.84 - £22.08 per piece (Ex VAT)

£4.61 - £26.50 per piece (Inc VAT)

C24 is a structural timber typically used to support structures and frameworks for buildings such as walls, ceilings and decking joists. It has many other uses for structural joinery. The use of C24...

£3.84 - £22.08 per piece (Ex VAT)

£4.61 - £26.50 per piece (Inc VAT)

63 results for 'uc4'

News & Information (3)

Products (60)

Featured Products