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DIY Building Supplies  |  SKU: JS-FAJT4715-2.4

6x2 Treated Timber C24 Regularised Sawn Joist 47x150mm - 2.4m


£6.59 Ex VAT
£7.91 Inc VAT
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Nationwide Delivery in 3-5 WORKING DAYS

  • Delivery: £35 ex VAT (only £25 with order value over £120 inc vat)
  • FREE DELIVERY OVER £500

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Our 6x2 C24 Timber Joists are made using high-quality timber responsibly gathered from FSC Certified forests. These are kiln-dried to ensure optimal straightness and durability, featuring smoothed edges for easy handling. Sized at 47x150mm (finished size approximately 45x145mm) and available in 2.4m lengths.

  • Kiln Dried for additional strength and durability
  • FSC Certified
  • For use in timber framing, decking and roofing
  • Regularised for uniform size, with eased corners
  • Graded to C24 strength grade
  • Conforms to BS 4978 and EN 14081:2006

What is 6x2 Timber in mm?

The designation "6x2" in inches translates to 47x150mm in metric measurements. However, the actual size of 6x2 Timber in mm is slightly reduced due to the regularisation process applied to our structural timber. Regularisation involves machining the length to achieve a consistent width and thickness throughout.

As a result, the "finished" size might be a few millimeters smaller than 47x150mm, typically closer to 45mm x 145mm. This minor variance is generally insignificant in the majority of projects and is a standard characteristic of using 6x2 regularised timber joists.

What are 6x2 Treated Timber Joists Used For?

The larger size of 6x2 timber joists and its stronger, C24 strength grading makes 6x2 timber joists ideal for use in roofing and flooring applications, house framing and deck framing, amongst other uses. Due to the nature of its treatment against moisture and pests,  6x2 Treated Timber Joists are suitable for use in both internal and outdoor projects.

What is Regularised Timber?

Regularised timber is timber that is mechanically finished to achieve consistent and uniform measurements throughout the length. This method guarantees a smooth and uniform finish, and means the finished size of a length is slightly smaller than the given size.

Particularly useful in construction, regularised timber ensures uniformity in structural elements like joists, studs, and framing materials, streamlining assembly processes and ensuring precise fits in building projects.

What Does Kiln Dried Mean?

Kiln-dried refers to a process in which timber or wood is placed inside a kiln in order to reduce the moisture content of the wood to a specific level. The kiln provides controlled heat and airflow, for a faster and more uniform drying process, which helps to minimise issues such as warping, cracking, and fungal growth in the wood. 

What Lengths Do 6x2 C24 Timber Joists Come in?

Our 6x2 Timber joists are available in 2.4m, 3m, 3.6m, 4.2m and 4.8m. We try to keep all of these lengths in stock wherever possible, but on occasions where stock levels or availability in your area is low, we may substitute for a longer length.

What Is C24 Timber?

C24 timber is one of a few grades of timber commonly used in the UK, assessed by their bend strength. C24 denotes a higher strength grade compared to C16 timber. The "C" signifies the type of wood (coniferous), while the number indicates its bend strength grading.

C24 timber is known for its superior strength and load-bearing capacity, making it suitable for more demanding structural applications. It is commonly used in construction projects that require timber with higher strength characteristics, such as in larger spans, heavy loads, or situations where increased structural resilience is necessary. C24 timber is often chosen for applications like roof trusses, beams, and other structural components where enhanced strength and durability are essential.

Do I Need Treated 6x2 Timber?

Our 6x2 Treated timber has a variety of uses, but is particularly useful for projects exposed to moisture or possible pests. 6x2 treated timber can be used in indoor or outdoor projects.


  • Size
    6x2
  • Finished Size
    approx 45mm x 145mm
  • Thickness
    47mm
  • Length
    2.4m
  • Width
    150mm
  • Material
    Treated Timber
  • Finish
    Treated to UC2
  • Strength Grading
    C24
  • Chain of Custody Scheme
    FSC
Need Help? Call our Team on 0115 6976 800

Do You Ship to My Address?

We deliver to most mainland UK addresses. If you are in one of the areas listed below and are unable to checkout, please give us a call to put together a custom quote.

Northern Ireland (BT), Isle of Wight (PO30-37), Isle of Man (IM), Scottish Highlands and Orkney Isles (PA, ML, EH, KA, G, KY, PH, DD, AB, IV, KW), Outer Hebrides and the Shetland Isles (HS, ZE) will incur additional charges and may also experience delivery delays.

How Much Will My Delivery Cost?

You can work out the cost of delivery on your order before checkout by heading to our Delivery Info page.

How Long Will Delivery Take?

We aim to deliver your items in 3 - 5 Working Days unless otherwise specified (eg - Sheds and Paving Kits). After you have placed your order, we will process your order and book a delivery day - which will then be sent to you via Email.

If have a specific request, please do give our team a call on 01156976800 and we will do our best to help.

What If I Need to Return Something?

If for any reason you wish to return your purchase, we will offer a refund or an exchange as long as this is requested within 14 days of receiving your order.

A manufacturer’s restocking charge may also apply on certain products such as non-stock items, which may be up to 30% of the purchase price, and you will be notified of this amount when you request a refund or exchange.

For full information visit our Returns Policy.

6x2-c24-timber-joist-2.4m
DIY Building Supplies

6x2 Treated Timber C24 Regularised Sawn Joist 47x150mm - 2.4m

£6.59 Ex VAT
£7.91 Inc VAT

Our 6x2 C24 Timber Joists are made using high-quality timber responsibly gathered from FSC Certified forests. These are kiln-dried to ensure optimal straightness and durability, featuring smoothed edges for easy handling. Sized at 47x150mm (finished size approximately 45x145mm) and available in 2.4m lengths.

What is 6x2 Timber in mm?

The designation "6x2" in inches translates to 47x150mm in metric measurements. However, the actual size of 6x2 Timber in mm is slightly reduced due to the regularisation process applied to our structural timber. Regularisation involves machining the length to achieve a consistent width and thickness throughout.

As a result, the "finished" size might be a few millimeters smaller than 47x150mm, typically closer to 45mm x 145mm. This minor variance is generally insignificant in the majority of projects and is a standard characteristic of using 6x2 regularised timber joists.

What are 6x2 Treated Timber Joists Used For?

The larger size of 6x2 timber joists and its stronger, C24 strength grading makes 6x2 timber joists ideal for use in roofing and flooring applications, house framing and deck framing, amongst other uses. Due to the nature of its treatment against moisture and pests,  6x2 Treated Timber Joists are suitable for use in both internal and outdoor projects.

What is Regularised Timber?

Regularised timber is timber that is mechanically finished to achieve consistent and uniform measurements throughout the length. This method guarantees a smooth and uniform finish, and means the finished size of a length is slightly smaller than the given size.

Particularly useful in construction, regularised timber ensures uniformity in structural elements like joists, studs, and framing materials, streamlining assembly processes and ensuring precise fits in building projects.

What Does Kiln Dried Mean?

Kiln-dried refers to a process in which timber or wood is placed inside a kiln in order to reduce the moisture content of the wood to a specific level. The kiln provides controlled heat and airflow, for a faster and more uniform drying process, which helps to minimise issues such as warping, cracking, and fungal growth in the wood. 

What Lengths Do 6x2 C24 Timber Joists Come in?

Our 6x2 Timber joists are available in 2.4m, 3m, 3.6m, 4.2m and 4.8m. We try to keep all of these lengths in stock wherever possible, but on occasions where stock levels or availability in your area is low, we may substitute for a longer length.

What Is C24 Timber?

C24 timber is one of a few grades of timber commonly used in the UK, assessed by their bend strength. C24 denotes a higher strength grade compared to C16 timber. The "C" signifies the type of wood (coniferous), while the number indicates its bend strength grading.

C24 timber is known for its superior strength and load-bearing capacity, making it suitable for more demanding structural applications. It is commonly used in construction projects that require timber with higher strength characteristics, such as in larger spans, heavy loads, or situations where increased structural resilience is necessary. C24 timber is often chosen for applications like roof trusses, beams, and other structural components where enhanced strength and durability are essential.

Do I Need Treated 6x2 Timber?

Our 6x2 Treated timber has a variety of uses, but is particularly useful for projects exposed to moisture or possible pests. 6x2 treated timber can be used in indoor or outdoor projects.


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