4 x 2 inch (47mm x 100mm) x 4.8m Green Treated UC3 Timber

Building durable garden structures, outdoor frameworks and timber supports requires materials that can withstand exposure to the British weather. 4 x 2 Inch Green Treated UC3 Timber provides a versatile solution for above-ground exterior construction, combining a substantial timber profile with preservative treatment designed to help protect against fungal decay and wood-boring insects.

With finished dimensions of 47mm x 100mm and a generous 4.8m length, this timber is suitable for a wide range of framing, support and general construction applications. Its wider profile provides additional depth compared with 3 x 2 timber, making it useful for projects requiring a more substantial timber section, subject to the appropriate structural specification.

The UC3 pressure treatment classification makes this timber suitable for exterior applications where it may be exposed to rain, moisture and changing weather conditions but does not come into direct contact with the ground. The preservative treatment helps improve resistance to biological deterioration, supporting a longer service life when the timber is correctly installed and maintained.

Its characteristic green treated finish is associated with the preservative process and will gradually weather over time. The timber can be cut, drilled, screwed and fixed using conventional woodworking tools and suitable exterior-grade fixings, making it a practical choice for professional builders, landscapers, fencing contractors and DIY enthusiasts.

The 4.8m length is particularly convenient for larger outdoor projects, allowing longer continuous sections to be used where appropriate and potentially reducing the number of joints required. From garden buildings and pergolas to fencing frameworks and general exterior carpentry, this treated timber offers flexibility across a broad range of applications.

Typical Uses

• Garden building and shed frameworks

• Pergolas and outdoor timber structures

• Fence rails and supporting frameworks

• Above-ground decking components where specified

• Exterior timber framing and supports

• Garden landscaping and construction projects

• Outbuilding repairs and renovation work

• General exterior carpentry and DIY

Product: Green Treated UC3 Timber
Nominal Size: 4 x 2 Inch
Finished Dimensions: 47mm x 100mm
Length: 4.8m / 4800mm
Material: Preservative-Treated Softwood
Treatment: Green Pressure Treated
Use Class: UC3 – Above-Ground Exterior Applications
Application: Timber Framing, Outdoor Structures and General Construction
Suitable for: Garden Buildings, Fencing, Landscaping and Exterior DIY

For creating sturdy garden frameworks, building outdoor structures or completing general exterior timber projects, 4 x 2 Inch (47mm x 100mm) x 4.8m Green Treated UC3 Timber offers a practical combination of versatility, substantial dimensions and preservative protection.

Important: UC3 timber is intended for above-ground use and should not be installed in direct contact with soil or permanently wet conditions. Use appropriately specified UC4 treated timber for ground-contact applications. Treat cut ends, notches and drilled areas with a suitable preservative in accordance with the manufacturer's instructions, and use fixings compatible with treated timber. Natural variations in grain, knots, colour and minor dimensional movement may occur. For load-bearing applications, confirm the timber's strength grade, allowable spans and structural suitability before installation.

Delivery

• Standard delivery costs £20.00.
• Delivery is free on orders over £100.

Full delivery information

Returns

See our returns policy for how to return an item.