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10x2 Timber Treated (2 Products)

Where strength is key, look no further than C24-graded 10x2 treated timber. With its reputable strength and robust composition, C24 timber is one of the highest-quality types of timber available on the market. When pitted against the likes of C16-graded timber, C24 reigns supreme, featuring fewer defects, in both its characteristics and appearance. For your convenience, our 10x2 timber range is sawn to length and pressure-treated with chemicals to prevent fungal and insect attack. 

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10x2 Timber Treated

What Is 10x2 Timber?

Here at Materials Market, all of the 10x2 timber we sell is C24 graded. But what does C24 mean? 


C24 grade offers a stronger, more robust product than C16-graded timber and lower-graded timbers as it comprises considerably fewer knots. This higher strength deems it suitable for tasks which require durability and sturdiness, namely structural applications, such as floor joists or roof battens.

With its increased strength, C24 timber can support higher loads and wider spans. To achieve a C24 grade, the timber must be imported from areas where the weather conditions demand a slower growth rate (and hence a tighter grain). 


We stock 10x2 timber in lengths of 3.6m and 4.8m - these are also available in packs of 44. We also stock a range of accessories (such as wood screws) to help you get your project underway. 

For all other building materials (from decorative aggregates to concrete blocks) check out our many categories and find the best solution for your next project. 

10x2 Carcassing Timber Applications

10x2 carcassing timber is a kiln-dried treated structural graded softwood that is manufactured to perform in applications where a grading stamp is required. 

It can be applied both internally and externally and is a premium material choice for floor joists, roof joists, and timber framing construction.

10x2 carcassing timber performs best in the following applications: 

  • Stud walls
  • Joists - roofs, floors and decking
  • Structural and general joinery applications
  • Timber framing construction

10x2 Timber Specifications

  • Graded to a superior C24 standard - excellent tensile strength
  • Regularised with an eased edge - comfortable handling
  • High-density
  • Pressure treated with Tanalith 'E' - helps to prevent rot and protect from moisture 
  • Kiln dried for extra stability 
  • FSC Certified - responsibly sourced 

What Are The Benefits Of Using Treated Timber? 


With C24 graded timber, you won't need to pay mind to 'checking in' on the timber, as its pressure treatment renders it unaffected by both fungal and insect attack. Essentially meaning, it can fend for itself without you maintaining it. 

Here are just a handful of the benefits on offer with treated timber:  

  • It is treated to resist rot, decay and insect attacks
  • The most durable timber option which offers extra stability, making it ideal for outdoor use
  • Thanks to its treated nature, treated timber is also low-maintenance
  • You won't have to spend time and money regularly maintaining it

What Does Pressure Treated Mean? 

Pressure-treating wood is a process which impregnates timber's cellular structure with preservative chemicals. This process typically incorporates copper and organic co-biocides, which help to repel both insects and moisture.

Frequently Asked 10x2 Questions

Is It Possible To Paint 10x2 Timber C24?

It's actually very easy to paint treated wood, but it's important to keep in mind that the wood should be allowed to completely dry out before any paint or primer is applied.

Be mindful of where you store the timber as too much heat or direct sunlight can cause the timber to warp rather than dry out. Conversely, damp conditions can lengthen the drying out period, prolonging the time before work can begin.

What Is Sawn Timber? 

Sawn timber is wood that has been cut to the required dimensions but hasn't yet been pressure treated and kiln dried. Pressure-treated timber, otherwise known as tanalised timber (due to the Tanalith E wood preservative that impregnates the wood) provides many benefits, such as resistance to the elements.

Am I Able To Cut Treated Timber To My Preferred Size?

Yes, it is possible to cut treated timber, provided that you have all the appropriate power tools, eye protection, and a respirator to hand before cracking on. Donning the correct PPE is essential as the cutting process releases tiny airborne particles of wood, possibly impregnated with the chemicals used in pressure-treating.

Treated wood also cuts a little more like wet wood so some extra care should be afforded to ensure the blade doesn’t slip while cutting. 

Is 10x2 Treated Timber Environmentally Sustainable?

All of the treated timber for purchase on the Materials Market website is Forest Stewardship Council (FSC) or Programme for the Endorsement of Forest Certification (PEFC) certified, which means that the timber we stock is in good condition and responsibly sourced from environmentally responsible suppliers.

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