Building & Carcassing Timber

Timberlink stock the largest range of pressure treated timber in the UK, for DIY/Public and Contractors - Builders, Fencers, Landscapers and Farmers

We stock three grades of treated timber: the strongest structural premium grade C24 in 90 size/sections, the medium grade C16 in 20 sizes/sections (soon to be 30) and ungraded Rough Sawn in over 100 sizes/sections, so you can choose the best value and right grade of treated timber for your use - no need to overspec or overspend with Timberlink!

C24 vs C16

C24 is stronger than C16 mainly because it is much slower-grown, imported from Scandinavia, whereas home-grown C16 is much faster-grown with wider growth rings.

65 Items

  1. Redwood Treated Post - 125mm x 125mm (5"x5") 4WW x 1.4m by Timberlink
    Redwood Treated Post - 125mm x 125mm (5"x5") 4WW x 1.4m
    £34.87

    £14.53 /m

    £28.13

    £11.72 /m

    Out of stock
    Multi-buy discount available see all pricing
  2. Rough Sawn Treated Redwood 125mm x 75mm (5"x3") by Timberlink
    Rough Sawn Treated Redwood 125mm x 75mm (5"x3")
    £26.36

    £20.28
    Multi-buy discount available see all pricing
  3. Redwood Green Treated Post 075mm x 100mm (4"x3") by Timberlink
    Redwood Green Treated Post 075mm x 100mm (4"x3")
    £15.35

    £12.30
    Multi-buy discount available see all pricing
  4. C24
    C24 Kiln Dried Regularised Sawn Green Treated Timber 75mm x 150mm (6"x3") by Timberlink
    C24 Kiln Dried Regularised Sawn Green Treated Timber 75mm x 150mm (6"x3")
    £14.50

    £12.67
    Multi-buy discount available see all pricing
  5. Premium Planed Green Treated Redwood Garden Sleeper 75mm x 150mm (6"x3") by Timberlink
    Premium Planed Green Treated Redwood Garden Sleeper 75mm x 150mm (6"x3")
    £9.72

    £10.80 /m

    £7.90

    £8.78 /m

    Multi-buy discount available see all pricing
  6. Green Treated Standard Garden Sleeper 100mm x 200mm (8"x4") by Timberlink
    Green Treated Standard Garden Sleeper 100mm x 200mm (8"x4")
    £28.80

    £12.00 /m

    £24.48

    £10.20 /m

    Multi-buy discount available see all pricing
  7. Premium Green Treated Redwood Garden Sleeper 100mm x 200mm (8"x4") by Timberlink
    Premium Green Treated Redwood Garden Sleeper 100mm x 200mm (8"x4")
    £15.12

    £16.80 /m

    £11.88

    £13.20 /m

    Multi-buy discount available see all pricing
  8. Redwood Treated Post 150mm x 150mm (6"x6") 4WW (4 Way Weather) by Timberlink
    Redwood Treated Post 150mm x 150mm (6"x6") 4WW (4 Way Weather)
    Out of stock
    Multi-buy discount available see all pricing
  9. C24
    C24 Kiln Dried Regularised Sawn Green Treated Timber 75mm x 225mm (9"x3") by Timberlink
    C24 Kiln Dried Regularised Sawn Green Treated Timber 75mm x 225mm (9"x3")
    £28.92

    £12.05 /m

    £25.27

    £10.53 /m

    Multi-buy discount available see all pricing
  10. C24
    C24 Kiln Dried Regularised Sawn Green Treated Timber 75mm x 200mm (8"x3") by Timberlink
    C24 Kiln Dried Regularised Sawn Green Treated Timber 75mm x 200mm (8"x3")
    £25.70

    £10.71 /m

    £22.46

    £9.36 /m

    Multi-buy discount available see all pricing
  11. P6 Tongue and Groove Chipboard Mezzanine Flooring 2.4m x 0.6m x 38mm by Timberlink
    P6 Tongue and Groove Chipboard Mezzanine Flooring 2.4m x 0.6m x 38mm
    £45.00

    £18.75 /m

    £38.40

    £16.00 /m

    Out of stock
    Multi-buy discount available see all pricing
  12. C24
    Graded C24 Rough Sawn Treated Timber 75mm x 250mm (10"x3") by Timberlink
    Graded C24 Rough Sawn Treated Timber 75mm x 250mm (10"x3")
    £30.13

    £16.74 /m

    £24.30

    £13.50 /m

    Multi-buy discount available see all pricing
  13. C24
    Graded C24 Rough Sawn Treated Timber 100mm x 250mm (10"x4") by Timberlink
    Graded C24 Rough Sawn Treated Timber 100mm x 250mm (10"x4")
    £41.86

    £23.26 /m

    £33.76

    £18.76 /m

    Multi-buy discount available see all pricing
  14. C24
    Graded C24 Rough Sawn Treated Timber 100mm x 225mm (9"x4") by Timberlink
    Graded C24 Rough Sawn Treated Timber 100mm x 225mm (9"x4")
    £103.68

    £21.60 /m

    £84.24

    £17.55 /m

    Multi-buy discount available see all pricing
  15. C24
    Graded C24 Treated Timber 75mm x 300mm (12"x3") by Timberlink
    Graded C24 Treated Timber 75mm x 300mm (12"x3")
    £36.16

    £20.09 /m

    £29.16

    £16.20 /m

    Multi-buy discount available see all pricing
  16. C16
    C16 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 200mm (8"x2") by Timberlink
    C16 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 200mm (8"x2")
    £10.96

    £6.09 /m

    £8.93

    £4.96 /m

    Multi-buy discount available see all pricing
  17. C16
    C16 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 150mm (6"x2") by Timberlink
    C16 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 150mm (6"x2")
    £8.23

    £4.57 /m

    £6.71

    £3.73 /m

    Multi-buy discount available see all pricing
  18. C16
    C16 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 100mm (4"x2") by Timberlink
    C16 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 100mm (4"x2")
    £5.51

    £3.06 /m

    £4.49

    £2.49 /m

    Multi-buy discount available see all pricing
  19. C16
    CLS Graded C16 50mm x 100mm (4"x2") fin 38mm x 89mm Treated by Timberlink
    CLS Graded C16 50mm x 100mm (4"x2") fin 38mm x 89mm Treated
    £7.20

    £3.00 /m

    £5.40

    £2.25 /m

    Multi-buy discount available see all pricing
  20. Brown Sawn Treated Timber Board - 22mm x 75mm x 4.8m (3"x1") by Timberlink
    Brown Sawn Treated Timber Board - 22mm x 75mm x 4.8m (3"x1")
    £6.64

    £1.38 /m

    Out of stock
    Multi-buy discount available see all pricing
  21. Rough Sawn Treated Redwood 100mm x 150mm (6"x4") by Timberlink
    Rough Sawn Treated Redwood 100mm x 150mm (6"x4")
    £15.12

    £12.60 /m

    £11.88

    £9.90 /m

    Multi-buy discount available see all pricing
  22. Birdsmouth Treated Post 100mm x 100mm (4"x4") by Timberlink
    Birdsmouth Treated Post 100mm x 100mm (4"x4")
    £8.10

    £9.00 /m

    £6.22

    £6.91 /m

    Multi-buy discount available see all pricing
  23. Redwood Treated Loglap 3.6m x 25mm x 125mm (5"x1") fin 19mm x 115mm by Timberlink
    Redwood Treated Loglap 3.6m x 25mm x 125mm (5"x1") fin 19mm x 115mm
    £13.07

    £3.63 /m

    £10.10

    £2.81 /m

    Multi-buy discount available see all pricing
  24. C24
    Graded C24 Rough Sawn Treated Timber 100mm x 300mm (12"x4") by Timberlink
    Graded C24 Rough Sawn Treated Timber 100mm x 300mm (12"x4")
    £50.22

    £27.90 /m

    £40.50

    £22.50 /m

    Multi-buy discount available see all pricing
  25. Sawn Treated Timber Lath 19mm x 38mm (3/4"x1.5") by Timberlink
    Sawn Treated Timber Lath 19mm x 38mm (3/4"x1.5")
    £2.75

    £0.76 /m

    £2.10

    £0.58 /m

    Multi-buy discount available see all pricing
  26. P5 Tongue and Groove Moisture Resistant Chipboard Flooring by Timberlink
    P5 Tongue and Groove Moisture Resistant Chipboard Flooring
    £21.54

    £8.98 /m

    £17.94

    £7.48 /m

    Multi-buy discount available see all pricing
  27. C24
    Graded C24 Rough Sawn Treated Timber 75mm x 150mm (6"x3") by Timberlink
    Graded C24 Rough Sawn Treated Timber 75mm x 150mm (6"x3")
    £16.06

    £8.92 /m

    £12.80

    £7.11 /m

    Multi-buy discount available see all pricing
  28. Treated Eased Edge KD Timber 47mm x 50mm (2"x2") - Green by Timberlink
    Treated Eased Edge KD Timber 47mm x 50mm (2"x2") - Green
    £3.53

    £1.96 /m

    £2.65

    £1.47 /m

    Multi-buy discount available see all pricing
  29. Redwood Treated T&G 19mm x 125mm (5"x 3/4") covers 112mm x 15mm by Timberlink
    Redwood Treated T&G 19mm x 125mm (5"x 3/4") covers 112mm x 15mm
    £11.35

    £3.15 /m

    £8.77

    £2.44 /m

    Multi-buy discount available see all pricing
  30. Redwood Treated Shiplap 19mm x 125mm (5"x 3/4") covers 15mm x 112mm by Timberlink
    Redwood Treated Shiplap 19mm x 125mm (5"x 3/4") covers 15mm x 112mm
    £15.05

    £3.14 /m

    £11.63

    £2.42 /m

    Multi-buy discount available see all pricing
  31. Redwood Treated Post 150mm x 150mm (6"x6") Flat Top by Timberlink
    Redwood Treated Post 150mm x 150mm (6"x6") Flat Top
    £35.23

    £19.57 /m

    £27.95

    £15.53 /m

    Multi-buy discount available see all pricing
  32. Redwood Green Treated Post 100mm x 100mm (4"x4") by Timberlink
    Redwood Green Treated Post 100mm x 100mm (4"x4")
    £6.48

    £7.20 /m

    £5.14

    £5.71 /m

    Multi-buy discount available see all pricing
  33. Redwood Treated Rebated Feather Edge 2ex. 36mm x 200mm by Timberlink
    Redwood Treated Rebated Feather Edge 2ex. 36mm x 200mm
    £18.49

    £5.14 /m

    £14.39

    £4.00 /m

    Multi-buy discount available see all pricing
  34. Treated Feather Edge Board 2ex. 22mm x 125mm by Timberlink
    Treated Feather Edge Board 2ex. 22mm x 125mm
    £0.97

    £1.08 /m

    £0.76

    £0.84 /m

    Multi-buy discount available see all pricing
  35. C16
    CLS Graded C16 50mm x 75mm (3"x2") fin 38mm x 63mm Untreated by Timberlink
    CLS Graded C16 50mm x 75mm (3"x2") fin 38mm x 63mm Untreated
    £5.18

    £2.16 /m

    £3.84

    £1.60 /m

    Multi-buy discount available see all pricing
  36. C16
    CLS Graded C16 50mm x 100mm (4"x2") fin 38mm x 89mm Untreated by Timberlink
    CLS Graded C16 50mm x 100mm (4"x2") fin 38mm x 89mm Untreated
    £6.91

    £2.88 /m

    £5.11

    £2.13 /m

    Multi-buy discount available see all pricing
  37. C16
    CLS Graded C16 50mm x 75mm (3"x2") fin 38mm x 63mm Treated by Timberlink
    CLS Graded C16 50mm x 75mm (3"x2") fin 38mm x 63mm Treated
    £5.40

    £2.25 /m

    £4.06

    £1.69 /m

    Multi-buy discount available see all pricing
  38. C24
    C24 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 250mm (10" x 2") by Timberlink
    C24 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 250mm (10" x 2")
    £15.13

    £8.41 /m

    £13.22

    £7.34 /m

    Multi-buy discount available see all pricing
  39. C24
    C24 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 225mm (9"x2") by Timberlink
    C24 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 225mm (9"x2")
    £13.57

    £7.54 /m

    £11.86

    £6.59 /m

    Multi-buy discount available see all pricing
  40. C24
    C24 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 200mm (8"x2") by Timberlink
    C24 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 200mm (8"x2")
    £12.07

    £6.71 /m

    £10.55

    £5.86 /m

    Multi-buy discount available see all pricing
  41. C24
    C24 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 175mm (7"x2") by Timberlink
    C24 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 175mm (7"x2")
    £10.57

    £5.87 /m

    £9.24

    £5.13 /m

    Multi-buy discount available see all pricing
  42. C24
    C24 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 125mm (5"x2") by Timberlink
    C24 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 125mm (5"x2")
    £7.57

    £4.21 /m

    £6.61

    £3.67 /m

    Multi-buy discount available see all pricing
  43. C24
    C24 Kiln Dried Regularised Sawn Green Treated Timber 75mm x 100mm (4"x3") by Timberlink
    C24 Kiln Dried Regularised Sawn Green Treated Timber 75mm x 100mm (4"x3")
    £9.64

    £5.36 /m

    £8.42

    £4.68 /m

    Multi-buy discount available see all pricing
  44. C24
    C24 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 150mm (6"x2") by Timberlink
    C24 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 150mm (6"x2")
    £9.07

    £5.04 /m

    £7.92

    £4.40 /m

    Multi-buy discount available see all pricing
  45. C24
    C24 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 75mm (3"x2") by Timberlink
    C24 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 75mm (3"x2")
    £4.50

    £2.50 /m

    £3.94

    £2.19 /m

    Multi-buy discount available see all pricing
  46. C24
    C24 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 100mm (4"x2") by Timberlink
    C24 Kiln Dried Regularised Sawn Green Treated Timber 47mm x 100mm (4"x2")
    £6.07

    £3.37 /m

    £5.30

    £2.47 /m

    Multi-buy discount available see all pricing
  47. C24
    Graded C24 Rough Sawn Treated Timber 47mm x 300mm (12"x2") by Timberlink
    Graded C24 Rough Sawn Treated Timber 47mm x 300mm (12"x2")
    £23.60

    £13.11 /m

    £19.03

    £10.57 /m

    Multi-buy discount available see all pricing
  48. C24
    Graded C24 Rough Sawn Treated Timber 75mm x 225mm (9"x3") by Timberlink
    Graded C24 Rough Sawn Treated Timber 75mm x 225mm (9"x3")
    £24.24

    £10.10 /m

    £19.33

    £8.05 /m

    Multi-buy discount available see all pricing
  49. C24
    Graded C24 Rough Sawn Treated Timber 75mm x 175mm (7"x3") by Timberlink
    Graded C24 Rough Sawn Treated Timber 75mm x 175mm (7"x3")
    £18.78

    £10.43 /m

    £14.98

    £8.32 /m

    Multi-buy discount available see all pricing
  50. C24
    Graded C24 Rough Sawn Treated Timber 75mm x 125mm (5"x3") by Timberlink
    Graded C24 Rough Sawn Treated Timber 75mm x 125mm (5"x3")
    £13.32

    £5.55 /m

    £10.62

    £4.42 /m

    Multi-buy discount available see all pricing

65 Items

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How to choose Timberlink treated carcassing timber 

Graded C24 or C16 or Ungraded Rough Sawn

 

What is the difference between C24 and C16 timber? BS EN 338 classifies structural timbers on their strength and stiffness properties and density values based on bending resistance and load bearing capacity. Softwood structural timber, whether it comes from the UK or is imported from Europe, all starts life as a coniferous tree like spruce or pine. Hence the “C” for “coniferous”. The number is just shorthand for the defined bending strength of that strength class:  C24 for 24 N/mm₂ and C16 for 16 N/mm₂ - the higher numbered grade is the better quality.

Both carcassing grades are kiln dried (KD) whitewood, planed smooth and regularised to consistent size with rounded eased edges for easier handling and then pressure treated by Timberlink in our own high pressure treatment plants against fungal and insect attack. Both grades are used for both indoor and outdoor use, when treated to the appropriate Use Class.

C24 timber complies with EN14081-2 and being graded to a higher standard than C16, is usually specified to meet tighter Building Regulations requirements, especially to handle higher loads and wider spans. C24 is more expensive as it is imported, slower grown with both narrower growth rings and hence a tighter grain which leads to greater density, durability and strength. In general terms C24 timbers will have less strength-reducing features like knots. This allows them to achieve the higher performance required by strength class C24, and in this way they may appear to be visually more appealing than most C16 timbers. Timberlink carries a vast range of C24 Timber sizes/sections in depths of 47, 75 and 100mm (2", 3"and 4"), widths from 75 to 300mm (3" to 12") and lengths from 1.8m (6' approx) up to 7.315 m (24').

C16 timber differs from C24 in that it too complies with EN14081 but being usually home and faster grown has wider growth rings and is not as strong or dense as C24 and is only sold in lengths up to 4.8m (16') so cannot meet the same structural loads and spans as C24. Nonetheless C16 graded timber and C16 CLS are widely used in timber frame house construction and being smooth to handle C16 makes for a great general workhorse timber, being cheaper than C24. Timberlink carries 20 sizes/sections of C16 Timber in 47mm (2") that also appear in our more premium C24 range, so you can choose the right grade for your job.

Ungraded Rough Sawn differs from most C24 and C16 timber in that it is not planed - this has the advantage that it treats better than graded timber. Ungraded too is a great workhorse timber extensively used for fencing, roof battens, or where large sections & long length beams and joists are needed. Timberlink only stocks ungraded redwood for fence and gate posts, as the cell structure of Pine especially, enables greater uptake of chemical preservative than in incised timber, which leads to longer life with Use Class 4 treatment for in ground contact. Ungraded timber boards when treated just to Use Class 3 also have better chemical uptakes too than planed timber.

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