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DIY Building Supplies  |  SKU: JS-FAJR4717-2.4

7x2 Timber C24 Regularised Sawn Joist 47x175mm

Length

£7.43 Ex VAT
£8.92 Inc VAT
Shipping calculated at checkout.

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 7x2 timber is approx 45mm x 170mm (finished size) and is suitable for use in roofing and flooring applications due to their C24 graded bend strength. Kiln-dried and regularised for straightness and durability.

  • Kiln Dried for additional strength and durability
  • FSC / PEFC Certified
  • For use in timber framing, decking and roofing
  • Regularised for uniform size, with eased corners
  • Graded to C24 strength grade

What is 7x2 Timber in mm?

In metric measurements, the dimensions of 7x2 timber translate to 47x150mm. However, the actual millimetre size of 7x2 timber is slightly reduced due to the regularisation process our structural timber undergoes. This process involves machining the length of the timber to ensure smooth and consistent dimensions throughout.

Consequently, the "finished" size may be slightly smaller than 47x175mm, usually closer to 45mm x 170mm. This slight difference does not impact the large majority of projects and is a standard feature of using 7x2 regularised timber joists.

What are 7x2 Treated Timber Joists Used For?

7x2 timber joists can be used in various construction projects, particularly floor joists or in structural projects where the timber is graded to C16 or C24 strength grading. Treated timber is suitable for both internal and external projects.

What is Regularised Timber?

Regularised timber refers to timber that has been machined to achieve consistent and standardised dimensions. This typically means that the “finished” size is a few millimetres smaller than the stated size. Regularised timber is commonly used in construction because its standardised size makes it easier to work with and ensures consistency in building projects. It's often used for structural components like joists, studs, and rafters, where precise dimensions and a smooth finish are essential for stability and ease of assembly.

What Does Kiln Dried Mean?

Kiln-dried timber is wood that has undergone a controlled drying process in a kiln to reduce the moisture content. This method enhances the wood's stability, strength, and durability by lowering moisture levels, minimising the risk of warping or cracking, making it ideal for construction,Additionally, the drying process helps deter mold growth and makes the wood less appealing to pests, ensuring its quality and longevity in different applications.

What Lengths Do 7x2 C24 Treated Timber Joists Come in?

Our 7x2 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 several grades commonly used in the UK. Distinguished by its greater strength compared to C16 timber, the "C" denotes the wood type (coniferous), while the numeral indicates its bend strength rating.

Renowned for its exceptional strength and capacity to bear heavy loads, C24 timber is often used in structural roles, requiring timber of superior strength - especially in scenarios involving larger spans, heavy loads, or where bolstered structural resilience is crucial.

Do I Need Treated 7x2 Timber?

7x2 timber is a suitable choice for various projects, however it is advisable to treat Timber Joists for any uses where they are likely to come into contact with moisture or pests, in which case, our Treated 7x2 Timber may be more suitable.

    • Size
      7x2
    • Finished Size
      approx 45mm x 170mm
    • Thickness
      47mm
    • Length
      2.4m, 3.0m, 3.6m, 4.2m, 4.8m
    • Width
      175mm
    • Material
      Untreated Timber
    • Finish
      Untreated
    • Strength Grading
      C24
    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.

    7x2-untreated-timber
    DIY Building Supplies

    7x2 Timber C24 Regularised Sawn Joist 47x175mm

    From £7.43 Ex VAT
    £8.92 Inc VAT

    Our 7x2 timber is approx 45mm x 170mm (finished size) and is suitable for use in roofing and flooring applications due to their C24 graded bend strength. Kiln-dried and regularised for straightness and durability.

    What is 7x2 Timber in mm?

    In metric measurements, the dimensions of 7x2 timber translate to 47x150mm. However, the actual millimetre size of 7x2 timber is slightly reduced due to the regularisation process our structural timber undergoes. This process involves machining the length of the timber to ensure smooth and consistent dimensions throughout.

    Consequently, the "finished" size may be slightly smaller than 47x175mm, usually closer to 45mm x 170mm. This slight difference does not impact the large majority of projects and is a standard feature of using 7x2 regularised timber joists.

    What are 7x2 Treated Timber Joists Used For?

    7x2 timber joists can be used in various construction projects, particularly floor joists or in structural projects where the timber is graded to C16 or C24 strength grading. Treated timber is suitable for both internal and external projects.

    What is Regularised Timber?

    Regularised timber refers to timber that has been machined to achieve consistent and standardised dimensions. This typically means that the “finished” size is a few millimetres smaller than the stated size. Regularised timber is commonly used in construction because its standardised size makes it easier to work with and ensures consistency in building projects. It's often used for structural components like joists, studs, and rafters, where precise dimensions and a smooth finish are essential for stability and ease of assembly.

    What Does Kiln Dried Mean?

    Kiln-dried timber is wood that has undergone a controlled drying process in a kiln to reduce the moisture content. This method enhances the wood's stability, strength, and durability by lowering moisture levels, minimising the risk of warping or cracking, making it ideal for construction,Additionally, the drying process helps deter mold growth and makes the wood less appealing to pests, ensuring its quality and longevity in different applications.

    What Lengths Do 7x2 C24 Treated Timber Joists Come in?

    Our 7x2 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 several grades commonly used in the UK. Distinguished by its greater strength compared to C16 timber, the "C" denotes the wood type (coniferous), while the numeral indicates its bend strength rating.

    Renowned for its exceptional strength and capacity to bear heavy loads, C24 timber is often used in structural roles, requiring timber of superior strength - especially in scenarios involving larger spans, heavy loads, or where bolstered structural resilience is crucial.

    Do I Need Treated 7x2 Timber?

    7x2 timber is a suitable choice for various projects, however it is advisable to treat Timber Joists for any uses where they are likely to come into contact with moisture or pests, in which case, our Treated 7x2 Timber may be more suitable.

    Length

    • 2.4m
    • 3.0m
    • 3.6m
    • 4.2m
    • 4.8m
    View product