Best Timber & Sheet Materials — Treated Softwood C24 (2026)
1 timber & sheet materials matching material “Treated Softwood C24”, hand-picked from UK Amazon listings.
Not sure which one to pick? Read our Best Timber & Sheet Materials UK (2026) guide.
This selection of Treated Softwood C24 timber and sheet materials offers a robust and cost-effective solution for various outdoor projects, from garden decking to shed construction. C24 treated softwood is specifically designed to withstand the elements, offering enhanced durability against rot, decay, and insect attack – crucial factors when exposed to British weather conditions. This range provides versatile options for creating foundations, raised beds, or general structural components within your home and garden.
Each piece is manufactured from graded C24 softwood, recognised for its strength and stability. The ‘C’ denotes the timber's resistance to decay, while the '24' indicates the pressure treatment level – a robust protection against fungal growth and insect infestation. Remember to always follow guidance on application of any preservatives or coatings recommended by the manufacturer after installation to maximise the lifespan of your project.
These materials are commonly used for projects requiring external protection, such as garden furniture frames, fence posts, and raised beds. Always check the product dimensions before ordering to ensure it suits your specific requirements. You can find detailed specifications and further information on the Amazon UK listings below.
#1 Pick
C24 Sawn Treated Timber Joist 45x95mm 1.2M (4x2 Inch) Pack of 1- Treated Softwood C24
- 45 x 95mm x 1.2m
£13.99
Pros
- C24 structural grade suits load-bearing joist and stud applications
- Pressure treated for decent resistance to rot and insect attack
- Sold as a single length, handy for smaller repair jobs
Cons
- Buying single lengths works out pricier per metre than bulk packs
FAQ
What does 'C24' treated softwood mean?+
‘C24’ signifies that the timber has been pressure treated with a preservative to achieve a durability category of 24. This provides significant protection against rot, dampness, and insect damage, making it suitable for exterior use.
What kind of projects is C24 Treated Softwood suitable for?+
C24 timber is commonly used in projects exposed to outdoor conditions like decking, fencing, garden sheds, raised beds, and general structural components. It’s a versatile choice for both ground contact and above-ground applications.
How long does C24 treatment typically last?+
The longevity of the treatment depends on usage and maintenance. However, with proper care (including regular cleaning and occasional reapplication of preservative), C24 treated softwood can provide up to 10 years of protection against decay.
Do I need to apply any additional treatments after installation?+
While C24 treatment provides excellent initial protection, we recommend consulting the manufacturer's guidance regarding further preservation. Applying a suitable exterior wood preservative or stain will significantly extend the timber’s lifespan and enhance its appearance.
Can I cut C24 treated softwood with power tools?+
Yes, you can safely cut C24 treated softwood with standard power tools such as circular saws and mitre saws. However, always wear appropriate safety gear including eye protection and a dust mask to prevent exposure to wood dust.
What should I do if the timber arrives damaged?+
Please inspect your delivery immediately upon arrival. Report any damage to Amazon UK according to their standard returns policy for damaged goods – they will handle the process directly with the seller.
How should I store C24 treated softwood before use?+
Store untreated timber in a dry, covered area away from direct sunlight and rain. This prevents moisture absorption which can compromise the treatment effectiveness and lead to premature deterioration.
What tools will I need for working with C24 Treated Softwood?+
You’ll typically require tools such as a saw (hand or power), measuring tape, hammer, drill/driver, and potentially a spirit level. Ensure you have appropriate safety equipment like gloves and eye protection.
Is C24 treated softwood suitable for ground contact?+
C24 treated softwood is generally suitable for ground contact in non-load-bearing applications such as fence posts or raised beds, but always check local building regulations and consult a structural engineer for load-bearing situations.
What are the typical dimensions available for this material?+
Available dimensions vary depending on the supplier. Commonly found sizes include 66mm x 100mm planks, 44mm x 96mm boards and sheet materials in various thicknesses – check the specific Amazon UK listings for detailed specifications.