Check local branch stock
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C24 Timber Joists Untreated Kiln Dried Regularised FSC 47 x 100mm (4x2)
£7.95 - £22.86 per piece (Ex VAT)£9.54 - £27.43 per piece (Inc VAT)Treated C24 is a structural timber that's commonly used for stud walls, roof and floor joists, and structural joinery. The use of C24 grade timber, which has a smaller cross section, allows for... -
C24 Timber UC2 Treated Kiln Dried Regularised FSC 47 x 75mm (3x2)
£6.43 - £18.47 per piece (Ex VAT)£7.72 - £22.16 per piece (Inc VAT)Main usage is for vertical non-load bearing stud positions. 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... -
C24 Timber Untreated Kiln Dried Regularised FSC 47 x 75mm (3x2)
£5.96 - £17.14 per piece (Ex VAT)£7.15 - £20.57 per piece (Inc VAT)C24 graded 3x2 timber carcassing is typically used for structural timber commonly used for stud walls, roof and floor joists, and structural joinery. However, as this is only 3x2, it's main usage is... -
C24 Timber Joists Untreated Kiln Dried Regularised PEFC 47 x 200mm (8x2)
£15.90 - £45.71 per piece (Ex VAT)£19.08 - £54.85 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... -
C24 Timber Joists UC2 Treated Kiln Dried Regularised Premium PEFC 47 x 125mm (2x5) (Finished Size 45x120mm)
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 Timber Joists UC2 Treated Kiln Dried Regularised PEFC 75 x 100mm (4x3)
£14.40 - £41.40 per piece (Ex VAT)£17.28 - £49.68 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... -
C24 Timber Joists UC2 Treated Kiln Dried Regularised PEFC 47 x 225mm (9x2)
£19.28 - £55.42 per piece (Ex VAT)£23.14 - £66.50 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... -
C24 Timber Joists UC2 Treated Kiln Dried Regularised Premium PEFC 75 x 150mm (3x6) (Finished Size 70x145mm)
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 Timber Joists Untreated Kiln Dried Regularised PEFC 75 x 150mm (6x3)
£20.12 - £57.85 per piece (Ex VAT)£24.14 - £69.42 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... -
C24 Timber Joists Untreated Kiln Dried Regularised FSC 47 x 150mm (6x2)
£11.92 - £34.28 per piece (Ex VAT)£14.30 - £41.14 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... -
C24 Timber Joists UC2 Treated Kiln Dried Regularised FSC 47 x 200mm (8x2)
£17.14 - £49.26 per piece (Ex VAT)£20.57 - £59.11 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... -
C24 Timber Joists Untreated Kiln Dried Regularised PEFC 47 x 250mm (10x2)
£19.87 - £57.14 per piece (Ex VAT)£23.84 - £68.57 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... -
C24 Timber Joists UC2 Treated Kiln Dried Regularised PEFC 75 x 150mm (6x3)
£21.60 - £62.10 per piece (Ex VAT)£25.92 - £74.52 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... -
C24 Timber Joists UC2 Treated Kiln Dried Regularised FSC 47 x 150mm (6x2)
£12.85 - £36.95 per piece (Ex VAT)£15.42 - £44.34 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... -
C24 Timber Joists Untreated Kiln Dried Regularised PEFC 75 x 200mm (8x3)
£26.83 - £77.13 per piece (Ex VAT)£32.20 - £92.56 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... -
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... -
C24 Timber Joists Untreated Kiln Dried Regularised PEFC 75 x 100mm (4x3)
£13.41 - £38.57 per piece (Ex VAT)£16.09 - £46.28 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... -
Rough Sawn Timber Untreated 35 x 50mm
Ungraded timber means it is neither C16 nor C24 graded, it can only be used for non-load bearing applications. This makes it ideal for general purpose uses such as shelving, boxing in, panelling,... -
C24 Timber Joists Untreated Kiln Dried Regularised PEFC 75 x 175mm (7x3)
£23.48 - £67.49 per piece (Ex VAT)£28.18 - £80.99 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... -
C24 Timber Joists UC2 Treated Kiln Dried Regularised FSC 47 x 125mm (5x2)
£10.71 - £30.79 per piece (Ex VAT)£12.85 - £36.95 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... -
C24 Timber Joists UC2 Treated Kiln Dried Regularised PEFC 47 x 250mm (10x2)
£21.42 - £61.58 per piece (Ex VAT)£25.70 - £73.90 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... -
C24 Timber Joists UC2 Treated Kiln Dried Regularised FSC 47 x 175mm (7x2)
£14.99 - £43.11 per piece (Ex VAT)£17.99 - £51.73 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... -
C24 Timber Joists UC2 Treated Kiln Dried Regularised PEFC 75 x 175mm (7x3)
£25.20 - £72.45 per piece (Ex VAT)£30.24 - £86.94 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... -
C24 Timber Joists Untreated Kiln Dried Regularised FSC 47 x 125mm (5x2)
£9.94 - £28.57 per piece (Ex VAT)£11.93 - £34.28 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...
Rough Sawn Timber
What is Structural Carcassing Timber?
Often referred to as carcassing timber, this type of wood is most commonly used in structural applications that involve the timber being used in an area that won’t be seen, and typically comes in three gradings:
- C16 Timber
- C24 Timber
- Part Graded Timber
Do I need Treated Structural Timber?
If the timber is going to be placed in an area where attacks from external problems such as moisture or fungal attacks, are likely to cause major problems, then we strongly recommend purchasing treated structural timber.
For all the following applications, we generally recommend using a treated structural timber:
- Roof Rafters
- Timber Framing
- Ceiling Joists
- Floor Joists
- Deck Joists
I need a Sawn Finish Structural Timber
Sawn Carcassing Timber has largely been replaced in UK stockists with “eased edge” stock being introduced in the UK in 2004.
Eased Edged means that the timber is semi-surfaced and finished to a uniform finish that is relatively smooth. Four corners are radiused to reduce the likelihood of splinters.
Most of our branches do hold stock of sawn boards that are either treated or untreated. However, if you require a sawn unsurfaced finish, please contact your nearest branch, who will be able to source this as a special item to meet your requirements. Most sizes can be obtained within 5 to 10 working days.
Confused about C16 and C24 structural timber and which grade you will need? Your nearest branch will be more than happy to help.