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DIY Building Supplies  |  SKU: JS-FBJT4775-4.2

3x2 Treated Timber C16 Kiln Dried Regularised Joist 47x75mm - 4.2m


£6.13 Ex VAT
£7.36 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 3x2 Timber is a high-quality, C16 FSC certified timber, treated for moisture and pest resistance. Measuring at 47x75mm (finishing approximately at 45mm x 70mm) with a length of 4.2m, this timber undergoes both kiln-drying and regularisation processes, ensuring a robust yet lightweight structure suitable for various applications.

  • Conforms to BS 4978 and EN 14081:2006
  • Regularised with eased corners
  • Suitable for partitioning and constructional applications
  • FSC Certified Timber
  • Kiln Dried for additional strength and durability

What is 3x2 Treated Timber in mm?

The term "3x2" refers to the joist size in inches, equivalent to 47 x 75mm in metric measurements. However, our 3x2 timber joists undergo regularisation to achieve a uniform size along the entire length, resulting in a "finished" size slightly smaller, approximately 45mm x 70mm.

This slight variation in size generally won't significantly impact the majority of projects and is a standard characteristic across 47x75mm (3x2) timber joists.

What are 3x2 C16 Treated Timber Joists Used For?

Frequently employed in stud walling and partitioning, C16 timber exhibits remarkable strength, ideal for interior construction projects. While it's not advised for supporting the building's structure, its treatment broadens its applicability to diverse outdoor uses such as decking, fencing, sheds, pergolas, and various other outdoor structures.

What Does Kiln Dried Mean?

Timber that undergoes kiln drying is favoured in construction - the controlled conditions inside a kiln facilitate faster and more uniform drying, reducing common risks like warping and cracking, prevalent in air-dried methods. This uniform moisture content notably enhances wood stability and strength.

What Lengths Does 3x2 C16 Timber Joist Come in?

Our selection of 3x2 timber spans different lengths: 2.4m, 3m, 3.6m, 4.2m, and 4.8m. While we aim to have all sizes in stock for prompt delivery, occasional delays or shortages in specific lengths might arise. In such cases, we may substitute longer lengths to ensure timely delivery of your order.

What Does C16 Stand For?

In the UK, timber undergoes grading based on strength and quality, where C16 and C24 are prominent grades. These grades signify the timber's load-bearing capacity, especially under bending stress.

Primarily used for structural purposes, C24 is best suited for higher load-bearing capacity, such as extensive spans or heavier loads, whereas C16, though slightly less robust than C24, remains sturdy and extensively utilised in wall and roofing applications with less demanding load requirements. Both grades ensure reliability, the correct choice depends on structural needs of the project.

Do I Need Treated 3x2 Timber Joists?


Our Treated 3x2 Treated Timber is appropriate for both internal and external applications. In projects susceptible to moisture or pest issues, treated timber may be the preferred choice. Its increased resistance to moisture and pests makes it especially suitable for outdoor projects like decking, roofing, and similar applications.

  • Size
    3x2
  • Finished Size
    approx 45mm x 70mm
  • Thickness
    47mm
  • Length
    4.2m
  • 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-joist-c16-4.2m
DIY Building Supplies

3x2 Treated Timber C16 Kiln Dried Regularised Joist 47x75mm - 4.2m

£6.13 Ex VAT
£7.36 Inc VAT

Our 3x2 Timber is a high-quality, C16 FSC certified timber, treated for moisture and pest resistance. Measuring at 47x75mm (finishing approximately at 45mm x 70mm) with a length of 4.2m, this timber undergoes both kiln-drying and regularisation processes, ensuring a robust yet lightweight structure suitable for various applications.

What is 3x2 Treated Timber in mm?

The term "3x2" refers to the joist size in inches, equivalent to 47 x 75mm in metric measurements. However, our 3x2 timber joists undergo regularisation to achieve a uniform size along the entire length, resulting in a "finished" size slightly smaller, approximately 45mm x 70mm.

This slight variation in size generally won't significantly impact the majority of projects and is a standard characteristic across 47x75mm (3x2) timber joists.

What are 3x2 C16 Treated Timber Joists Used For?

Frequently employed in stud walling and partitioning, C16 timber exhibits remarkable strength, ideal for interior construction projects. While it's not advised for supporting the building's structure, its treatment broadens its applicability to diverse outdoor uses such as decking, fencing, sheds, pergolas, and various other outdoor structures.

What Does Kiln Dried Mean?

Timber that undergoes kiln drying is favoured in construction - the controlled conditions inside a kiln facilitate faster and more uniform drying, reducing common risks like warping and cracking, prevalent in air-dried methods. This uniform moisture content notably enhances wood stability and strength.

What Lengths Does 3x2 C16 Timber Joist Come in?

Our selection of 3x2 timber spans different lengths: 2.4m, 3m, 3.6m, 4.2m, and 4.8m. While we aim to have all sizes in stock for prompt delivery, occasional delays or shortages in specific lengths might arise. In such cases, we may substitute longer lengths to ensure timely delivery of your order.

What Does C16 Stand For?

In the UK, timber undergoes grading based on strength and quality, where C16 and C24 are prominent grades. These grades signify the timber's load-bearing capacity, especially under bending stress.

Primarily used for structural purposes, C24 is best suited for higher load-bearing capacity, such as extensive spans or heavier loads, whereas C16, though slightly less robust than C24, remains sturdy and extensively utilised in wall and roofing applications with less demanding load requirements. Both grades ensure reliability, the correct choice depends on structural needs of the project.

Do I Need Treated 3x2 Timber Joists?


Our Treated 3x2 Treated Timber is appropriate for both internal and external applications. In projects susceptible to moisture or pest issues, treated timber may be the preferred choice. Its increased resistance to moisture and pests makes it especially suitable for outdoor projects like decking, roofing, and similar applications.

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