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C16 Timber

Our range of C16 timber is ideal for structural applications where strength and durability are essential. Graded to meet UK building standards, timber C16 is commonly used for floor joists, roof battens, and stud walls.

We offer a wide selection of C16 timber sizes to suit your project needs, with both untreated and C16 treated timber options available for added resistance to moisture and decay.

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  • C24%2044x70%20Treated%20Main.jpg.jpeg C24%2044x70%20Treated%20TopAngle.jpg.jpeg

    C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 47 x 75mm (3x2)

    £3.25 - £18.67 per piece (Ex VAT)
    £3.90 - £22.40 per piece (Inc VAT)
    Treated timber is suitable to be used externally and is suitable for wet areas or areas where the timber will be coming into contact with the ground. Examples of treated timber uses are outdoor decking, shed bases, posts, sleepers. Regularised timber has...
    £3.25 - £18.67 per piece (Ex VAT)
    £3.90 - £22.40 per piece (Inc VAT)
  • C24%2044x70%20Treated%20Main.jpg.jpeg C24%2044x70%20Treated%20TopAngle.jpg.jpeg

    C16 Timber Joists Treated Kiln Dried Regularised PEFC 44 x 70mm (3x2)

    £3.52 - £20.21 per piece (Ex VAT)
    £4.22 - £24.25 per piece (Inc VAT)
    C16 graded carcassing is a structural timber commonly used for stud walls, roof and floor joists, and structural joinery. C16 is normally the grade that is produced from faster grown UK timber. It is machined to have rounded edges, smooth faces, and...
    £3.52 - £20.21 per piece (Ex VAT)
    £4.22 - £24.25 per piece (Inc VAT)
  • C24%2044x70%20Main.jpg.jpeg C24%2044x70%20Top%20Angle.jpg.jpeg

    C16 Timber Joists Untreated Kiln Dried Regularised FSC 47 x 75mm (3x2)

    £2.95 - £16.96 per piece (Ex VAT)
    £3.54 - £20.35 per piece (Inc VAT)
    C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher...
    £2.95 - £16.96 per piece (Ex VAT)
    £3.54 - £20.35 per piece (Inc VAT)
  • C24%2044x70%20Main.jpg.jpeg C24%2044x70%20Top%20Angle.jpg.jpeg

    C16 Timber Joists Kiln Dried Regularised FSC 44 x 70mm (3x2)

    £3.28 - £18.88 per piece (Ex VAT)
    £3.94 - £22.66 per piece (Inc VAT)
    C16 graded carcassing is a structural timber commonly used for stud walls, roof and floor joists, and structural joinery. C16 is normally the grade that is produced from faster grown UK timber. It is machined to have rounded edges, smooth faces, and...
    £3.28 - £18.88 per piece (Ex VAT)
    £3.94 - £22.66 per piece (Inc VAT)
  • C24%2044x70%20Main.jpg.jpeg C24%2044x70%20TopAngle.jpg.jpeg

    C16 Timber Joists Kiln Dried Regularised PEFC 44 x 70mm (3x2)

    £3.28 - £18.88 per piece (Ex VAT)
    £3.94 - £22.66 per piece (Inc VAT)
    C16 graded carcassing is a structural timber commonly used for stud walls, roof and floor joists, and structural joinery. C16 is normally the grade that is produced from faster grown UK timber. It is machined to have rounded edges, smooth faces, and...
    £3.28 - £18.88 per piece (Ex VAT)
    £3.94 - £22.66 per piece (Inc VAT)

Our range of C16 timber is a trusted choice for structural projects. This strength-graded timber is ideal for internal building work where durability matters. All our timber C16 is kiln-dried for stability and can be used for joists, rafters, and stud walls.

What is C16 timber?

C16 timber is structural timber graded for use in domestic and light commercial buildings. It offers strength and stability at an affordable price. If you’re building floors, roofs, or partitions, C16 treated timber is the ideal solution for lasting protection against moisture and decay.

C16 timber sizes

We stock a wide selection of C16 timber sizes to suit any project. Common dimensions include:

  • 47mm x 100mm
  • 47mm x 150mm
  • 47mm x 200mm

Whether you need short lengths or full-sized beams, our range has you covered.

C16 vs C24 timber

Many customers ask about C16 vs C24 timber. The main difference is strength. C24 is stronger and often used for heavy loads or larger spans. However, C16 timber is more than enough for most internal structural work, offering great value without compromising safety.

Why choose C16 treated timber?

For outdoor or damp environments, choose C16 treated timber. It’s pressure-treated to resist rot, fungal decay, and insect attack. This makes it a smart choice for joists in ground-floor areas or outdoor frames where durability matters.

Explore our full range of C16 timber and find the perfect size for your project. Strong, reliable, and cost-effective – it’s the ideal choice for structural building work.

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