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9x3 Timber

Our heavy-duty 9x3 timber is perfect for structural applications requiring superior strength and durability. Ideal for beams, joists and framing, it delivers reliable support for both indoor and outdoor construction projects.

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  • C24%2070x220%20Main.jpg.jpeg C24%2070x220%20Top%20Angle_.jpg.jpeg

    C24 Timber Joists Untreated Kiln Dried Regularised PEFC 75 x 225mm (9x3)

    £30.18 - £86.78 per piece (Ex VAT)
    £36.22 - £104.14 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...
    £30.18 - £86.78 per piece (Ex VAT)
    £36.22 - £104.14 per piece (Inc VAT)
  • C24%2070x220%20Main.jpg.jpeg C24%2070x220%20Top%20Angle_.jpg.jpeg

    C24 Timber Joists UC2 Treated Kiln Dried Regularised FSC 75 x 225mm (9x3)

    £32.40 - £93.15 per piece (Ex VAT)
    £38.88 - £111.78 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...
    £32.40 - £93.15 per piece (Ex VAT)
    £38.88 - £111.78 per piece (Inc VAT)
  • C24%2044x220%20Main.jpg.jpeg C24%2044x220%20Top%20Angle.jpg.jpeg

    C24 Timber Joists UC2 Treated Kiln Dried Regularised PEFC 75 x 225mm (9x3)

    £32.40 - £93.15 per piece (Ex VAT)
    £38.88 - £111.78 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...
    £32.40 - £93.15 per piece (Ex VAT)
    £38.88 - £111.78 per piece (Inc VAT)
  • C24%2070x220%20Main.jpg.jpeg C24%2070x220%20Top%20Angle_.jpg.jpeg

    C24 Timber Joists Untreated Kiln Dried Regularised FSC 75 x 225mm (9x3)

    £30.18 - £86.78 per piece (Ex VAT)
    £36.22 - £104.14 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...
    £30.18 - £86.78 per piece (Ex VAT)
    £36.22 - £104.14 per piece (Inc VAT)
  • C24%2070x220%20Main.jpg.jpeg C24%2070x220%20Top%20Angle_.jpg.jpeg

    C16 Timber Joists Untreated Kiln Dried Regularised FSC 75 x 225mm (9x3)

    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...
  • C24%2070x220%20Treated%20Main.jpg.jpeg C24%2070x220%20Treated%20Top.jpg.jpeg

    C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 75 x 225mm (9x3)

    These C16 carcassing timber lengths are UC3u treated timber, meaning they perfect for outdoor use providing it is above ground. Carcassing is a generic trade term which refers to the use of a species...

Our range of 9x3 timber is suitable for indoor and outdoor use for any projects requiring heavy duty strength. Built to withstand demanding environments, this timber size is a trusted choice for professionals and DIY enthusiasts alike.

Why choose 9x3 timber?

Heavy-duty 9x3 timber is designed for situations where extra width and strength are required. Common uses include:

  • Beams
  • Joists
  • Stud work
  • Structural applications

    • What is 9x3 timber in mm?

    9x3 is approximately 75mm x 225mm.

    Sizes and options

    We stock 9x3 timber in a variety of lengths to suit your project needs. It's also available in C24 and C16 grades.

    Shop our full range for reliable, long-lasting construction materials. Strong, stable and versatile, perfect for any structural project.