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DIY Building Supplies  |  SKU: JS-PCL5010A

4x2 CLS Timber Studwork & Framing 38x89mm - 2.4m


£4.14 Ex VAT £4.46
£4.97 Inc VAT
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  • Delivery: £35 ex VAT (only £25 with order value over £120 inc vat)
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This 4x2 CLS Timber has a finished size of approximately 38mm x 89m, which has a slightly smaller profile than our 4x2 C24 Timber as it is finished on all sides. It is 2.4m long and ideal for stud walls, partitioning and framing.  

  • For use in stud walls, framing and partitioning applications
  • Regularised on all sides for uniform size, with eased corners
  • Conforms to BS 4978 and EN 14081:2006
  • Kiln Dried for additional strength and durability
  • Sustainably Sourced Timber
  • Not suitable for use in direct ground contact.

What is 4x2 CLS Studwork Timber in mm?

The term "4x2," typically denoting the joist size in inches, equates to 47 x 100mm in metric measurements. However, CLS is planed on all sides to achieve an even and uniform finish, resulting in a "finished" size slightly smaller of approx 38mm x 89mm, to ensure consistency throughout.

This slight variance is typical in CLS timber and tends to lend itself specifically to structural projects where plasterboard etc will be applied to the structure. 

What is 4x2 CLS Timber Studwork Used For?

Typically, C16 CLS Studwork Timber is used for timber frame home construction, such as stud walling, carcassing and interior framing and partitioning. It is a C16 timber which makes it exceptionally strong, and suitable for interior construction applications. 

(Read: What is CLS Timber and Why You Should Use it in Your Next Project)

What Does Kiln Dried Mean?

Kiln-dried timber goes through a drying process involving a consistent heat application in kilns, efficiently removing excess moisture from freshly cut boards. This method reduces weight, enhances strength and straightness, and improves workability. In contrast to the prolonged duration of air-drying, kiln drying provides a faster and more reliable approach.

What Lengths Do 4x2 CLS Timber Studwork Come in?

We offer 4x2 timber in both a 2.4m length and a 4.8m length. We strive to maintain stock across all sizes for delivery, but there are occasionally instances where we would look to substitute a longer length as an alternative if there's a delay or unavailability of specific sizes in your area.

What Does CLS Stand For?

CLS stands for "Canadian Lumber Standard" as CLS Studwork Timber was initially sourced from Canada. However, presently, it's sourced from various countries, including the UK. Despite this, the term CLS remains a common identifier for this product.

What Does C16 Stand For?

In the UK, regularised timber is typically classified into two grades: C16 or C24. The "C" signifies the wood type, specifically Conifer. The numerical value indicates the bending strength, based on factors such as imperfections and knots. While C24 is the stronger grade, C16 remains exceptionally strong and is used in numerous wall and roofing applications.

Do I Need Treated 4x2 Timber?

Our 4x2 CLS Timber is untreated as it is typically used in internal applications. If your project is likely to be prone to moisture or pest issues, treated timber may be a better alternative, which is better suited for outdoor projects like decking, roofing, and similar projects.


  • Size
    4x2
  • Finished Size
    approx 38mm x 89mm
  • Thickness
    38mm
  • Length
    2.4m
  • Width
    89mm
  • Material
    Untreated Timber
  • Finish
    Untreated
  • Strength Grading
    C16
  • Chain of Custody Scheme
    PEFC / EPD
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.

cls-timber-4x2-2.4m
DIY Building Supplies

4x2 CLS Timber Studwork & Framing 38x89mm - 2.4m

£4.14 Ex VAT £4.46
£4.97 Inc VAT

This 4x2 CLS Timber has a finished size of approximately 38mm x 89m, which has a slightly smaller profile than our 4x2 C24 Timber as it is finished on all sides. It is 2.4m long and ideal for stud walls, partitioning and framing.  

  • For use in stud walls, framing and partitioning applications
  • Regularised on all sides for uniform size, with eased corners
  • Conforms to BS 4978 and EN 14081:2006
  • Kiln Dried for additional strength and durability
  • Sustainably Sourced Timber
  • Not suitable for use in direct ground contact.

What is 4x2 CLS Studwork Timber in mm?

The term "4x2," typically denoting the joist size in inches, equates to 47 x 100mm in metric measurements. However, CLS is planed on all sides to achieve an even and uniform finish, resulting in a "finished" size slightly smaller of approx 38mm x 89mm, to ensure consistency throughout.

This slight variance is typical in CLS timber and tends to lend itself specifically to structural projects where plasterboard etc will be applied to the structure. 

What is 4x2 CLS Timber Studwork Used For?

Typically, C16 CLS Studwork Timber is used for timber frame home construction, such as stud walling, carcassing and interior framing and partitioning. It is a C16 timber which makes it exceptionally strong, and suitable for interior construction applications. 

(Read: What is CLS Timber and Why You Should Use it in Your Next Project)

What Does Kiln Dried Mean?

Kiln-dried timber goes through a drying process involving a consistent heat application in kilns, efficiently removing excess moisture from freshly cut boards. This method reduces weight, enhances strength and straightness, and improves workability. In contrast to the prolonged duration of air-drying, kiln drying provides a faster and more reliable approach.

What Lengths Do 4x2 CLS Timber Studwork Come in?

We offer 4x2 timber in both a 2.4m length and a 4.8m length. We strive to maintain stock across all sizes for delivery, but there are occasionally instances where we would look to substitute a longer length as an alternative if there's a delay or unavailability of specific sizes in your area.

What Does CLS Stand For?

CLS stands for "Canadian Lumber Standard" as CLS Studwork Timber was initially sourced from Canada. However, presently, it's sourced from various countries, including the UK. Despite this, the term CLS remains a common identifier for this product.

What Does C16 Stand For?

In the UK, regularised timber is typically classified into two grades: C16 or C24. The "C" signifies the wood type, specifically Conifer. The numerical value indicates the bending strength, based on factors such as imperfections and knots. While C24 is the stronger grade, C16 remains exceptionally strong and is used in numerous wall and roofing applications.

Do I Need Treated 4x2 Timber?

Our 4x2 CLS Timber is untreated as it is typically used in internal applications. If your project is likely to be prone to moisture or pest issues, treated timber may be a better alternative, which is better suited for outdoor projects like decking, roofing, and similar projects.


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