Timber Decking Joist C16 – 100mm x 47mm

4 x 2 Timber Joists
£13.88 £15.55save 10.7%
Per 3.6m Joist Price Including VAT

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C16 Timber Joists

C16 100mm x 47mm also commonly known as 4 by 2 timber joists, is the most popular timber size on the market today. This is due to its almost limitless variability on construction & home projects, from building a deck and supporting the frame, to building a garden room, garage or even a roof extension are a place for this product on any project.

Pressure-treated for extra durability and performance over time, creating the perfect option for your decking frame and timber joists.


  • C16 strength graded
  • Homegrown timber
  • Resawn Timber
  • Kiln Dried
  • Pressure Treated
  • FSC Certification
  • Machined
  • Perfect for Decking Joists
  • Finishing sizes 95 x 45mm ( +/- 1mm)

C16 Timber is the most common form of timber used; due to its strength, versatility and cost. They are used in many different applications, from commercial projects to DIY home improvement projects.

Our experienced staff will highly recommend C16 timber for a high percentage of DIY outdoor improvements such as a new decking project due to its strength, durability & cost.

Our C16 timber is kiln-dried to reduce the amount of moisture in the wood, improving its overall strength and durability. Kiln-dried offers a much more consistent moisture content when compared to air-dried timber.



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