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DIY Building Supplies  |  SKU: JS-FBJT4775-4.8

3x2 Treated Timber C16 Kiln Dried Regularised Joist 47x75mm - 4.8m


£7.00 Ex VAT
£8.40 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 premium C16 3x2 Timber is cut from quality, FSC certified wood, treated to resist moisture and pests. Sized at 47x75mm (finishing around 45mm x 70mm) and spanning 4.8m in length, this timber is kiln-dried and regularised, ensuring a sturdy yet lightweight composition ideal for a variety of uses.

  • Conforms to BS 4978 and EN 14081:20064
  • FSC Certified Timber
  • Suitable for partitioning and constructional applications
  • Regularised with eased corners
  • Kiln Dried for additional strength and durability

What is 3x2 Treated Timber in mm?

"3x2" relates to the joist's dimensions in inches, equivalent to 47 x 75mm. However, our 3x2 timber joists are regularised, which is done to maintain uniformity along their length, resulting in a "final" size slightly smaller, approximately 45mm x 70mm.

This slight variance in size usually doesn't have a significant impact on most projects and is a standard feature of 47x75mm (3x2) timber joists.

What are 3x2 C16 Treated Timber Joists Used For?

Commonly utilized in stud walling and partitioning, C16 timber has impressive strength, making it perfect for interior construction endeavors. Although not recommended for supporting a building's framework, its treatment expands its versatility, rendering it suitable for various outdoor applications like decking, fencing, sheds, pergolas, and a range of other outdoor structures.

What Does Kiln Dried Mean?

Kiln dried timber is timber that has undergone drying in a kiln as opposed to air-drying. It is often more suitable for construction purposes as the controlled environment within the kiln enables quicker and more consistent drying. This process reduces typical issues such as warping and cracking, often found in air-drying methods. The consistent moisture content significantly boosts the stability and strength of the wood.

What Lengths Does 3x2 C16 Timber Joist Come in?

We offer a range of 3x2 timber in various lengths: 2.4m, 3m, 3.6m, 4.2m, and 4.8m. While we strive to keep all sizes in stock for swift delivery, occasional delays or shortages in certain lengths may occur. If this happens, we may substitute longer lengths to ensure your order arrives on time.

What Does C16 Stand For?

In the UK, timber is graded based on its strength and quality, with C16 and C24 being the most common. These grades indicate how well the timber can bear loads, particularly when subjected to bending stress.

C24 is mainly employed for structural purposes, offering superior load-bearing capacity, ideal for extensive spans or heavier loads. On the other hand, C16, while slightly less robust than C24, maintains its sturdiness and is widely used in wall and roofing projects with lower load demands. Both grades assure reliability, and the choice between them hinges on the specific structural requirements of the project.

Do I Need Treated 3x2 Timber Joists?

Our treated 3x2 Timber is suitable for both interior and exterior uses. In projects prone to moisture or pest concerns, opting for treated timber might be preferable. Its enhanced resistance to moisture and pests makes it particularly fitting for outdoor projects such as decking, roofing, and similar applications.



  • Size
    3x2
  • Finished Size
    approx 45mm x 70mm
  • Thickness
    47mm
  • Length
    4.8m
  • Width
    75mm
  • Material
    Treated Timber
  • Finish
    Treated to UC2
  • Strength Grading
    C16
  • 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.

3x2-treated-timber-c16-4.8m-
DIY Building Supplies

3x2 Treated Timber C16 Kiln Dried Regularised Joist 47x75mm - 4.8m

£7.00 Ex VAT
£8.40 Inc VAT

Our premium C16 3x2 Timber is cut from quality, FSC certified wood, treated to resist moisture and pests. Sized at 47x75mm (finishing around 45mm x 70mm) and spanning 4.8m in length, this timber is kiln-dried and regularised, ensuring a sturdy yet lightweight composition ideal for a variety of uses.

What is 3x2 Treated Timber in mm?

"3x2" relates to the joist's dimensions in inches, equivalent to 47 x 75mm. However, our 3x2 timber joists are regularised, which is done to maintain uniformity along their length, resulting in a "final" size slightly smaller, approximately 45mm x 70mm.

This slight variance in size usually doesn't have a significant impact on most projects and is a standard feature of 47x75mm (3x2) timber joists.

What are 3x2 C16 Treated Timber Joists Used For?

Commonly utilized in stud walling and partitioning, C16 timber has impressive strength, making it perfect for interior construction endeavors. Although not recommended for supporting a building's framework, its treatment expands its versatility, rendering it suitable for various outdoor applications like decking, fencing, sheds, pergolas, and a range of other outdoor structures.

What Does Kiln Dried Mean?

Kiln dried timber is timber that has undergone drying in a kiln as opposed to air-drying. It is often more suitable for construction purposes as the controlled environment within the kiln enables quicker and more consistent drying. This process reduces typical issues such as warping and cracking, often found in air-drying methods. The consistent moisture content significantly boosts the stability and strength of the wood.

What Lengths Does 3x2 C16 Timber Joist Come in?

We offer a range of 3x2 timber in various lengths: 2.4m, 3m, 3.6m, 4.2m, and 4.8m. While we strive to keep all sizes in stock for swift delivery, occasional delays or shortages in certain lengths may occur. If this happens, we may substitute longer lengths to ensure your order arrives on time.

What Does C16 Stand For?

In the UK, timber is graded based on its strength and quality, with C16 and C24 being the most common. These grades indicate how well the timber can bear loads, particularly when subjected to bending stress.

C24 is mainly employed for structural purposes, offering superior load-bearing capacity, ideal for extensive spans or heavier loads. On the other hand, C16, while slightly less robust than C24, maintains its sturdiness and is widely used in wall and roofing projects with lower load demands. Both grades assure reliability, and the choice between them hinges on the specific structural requirements of the project.

Do I Need Treated 3x2 Timber Joists?

Our treated 3x2 Timber is suitable for both interior and exterior uses. In projects prone to moisture or pest concerns, opting for treated timber might be preferable. Its enhanced resistance to moisture and pests makes it particularly fitting for outdoor projects such as decking, roofing, and similar applications.



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