Original: $10.15
-65%$10.15
$3.55The Story
Treated sawn C24 graded timber in 47mm x 75mm (3x2) is a structural softwood kilned to a moisture content of 20% or below, then pressure treated for long-term resistance to rot and fungal decay. Suitable for framing, carcassing and decking subframes across residential and commercial projects.
Specifications
| Material | Softwood (C24 graded) |
|---|---|
| Grade | C24 to BS 4978 |
| Treatment | Tanalised pressure treatment |
| Finish | Regularised (planed all round) |
| Nominal Size | 47mm x 75mm (3 inch x 2 inch) |
| Finished Size | Approx. 45mm x 70mm after regularising |
| Lengths | 3.6m (12ft), 4.8m (16ft) |
| Profile | Sawn, regularised |
| Use Class | Suitable for exposed and high-risk environments |
What it's used for
- Structural wall framing and carcassing in timber-frame construction
- Decking subframes and joists where ground contact or moisture exposure is likely
- Roof timbers, floor joists and stud partitioning requiring a certified strength grade
- General construction where a combination of structural performance and rot resistance is needed
Fitting and handling
Store this timber flat, off the ground and under cover before installation to maintain its moisture content and prevent unnecessary movement. When fixing, use hot-dip galvanised or stainless steel fixings throughout as standard steel will corrode in contact with Tanalised timber. If you cut lengths on site, apply an end-grain preservative treatment to any fresh cuts to maintain the protection provided by the original pressure treatment.
FAQ
What is the difference between C16 and C24 graded timber?
C24 is a higher strength grade than C16, meaning the timber has been assessed and certified to carry greater structural loads. For floor joists, rafters and load-bearing stud work, C24 is generally the specified grade. C16 is adequate for lighter structural and general construction uses.
Is this timber suitable for outdoor use such as a decking frame?
Yes. The Tanalised pressure treatment means the preservative is driven deep into the timber fibres, giving lasting protection against rot and fungal decay. This makes 47mm x 75mm treated C24 a practical choice for decking subframes, pergola framing and other external structural applications.
What does regularised mean and how does it affect the finished size?
Regularised means the timber has been planed all round to a consistent cross-section, making it easier to work with and reducing variation between lengths. The finished size is approximately 2mm under the nominal thickness and 5mm under the nominal width, so you can expect around 45mm x 70mm in practice.
For more structural softwood options, browse our full range of C24 graded timber at Nottage Timber Merchants. We supply trade and retail customers from our yard in Bridgend, with next-day delivery available across South Wales.
Description
Treated sawn C24 graded timber in 47mm x 75mm (3x2) is a structural softwood kilned to a moisture content of 20% or below, then pressure treated for long-term resistance to rot and fungal decay. Suitable for framing, carcassing and decking subframes across residential and commercial projects.
Specifications
| Material | Softwood (C24 graded) |
|---|---|
| Grade | C24 to BS 4978 |
| Treatment | Tanalised pressure treatment |
| Finish | Regularised (planed all round) |
| Nominal Size | 47mm x 75mm (3 inch x 2 inch) |
| Finished Size | Approx. 45mm x 70mm after regularising |
| Lengths | 3.6m (12ft), 4.8m (16ft) |
| Profile | Sawn, regularised |
| Use Class | Suitable for exposed and high-risk environments |
What it's used for
- Structural wall framing and carcassing in timber-frame construction
- Decking subframes and joists where ground contact or moisture exposure is likely
- Roof timbers, floor joists and stud partitioning requiring a certified strength grade
- General construction where a combination of structural performance and rot resistance is needed
Fitting and handling
Store this timber flat, off the ground and under cover before installation to maintain its moisture content and prevent unnecessary movement. When fixing, use hot-dip galvanised or stainless steel fixings throughout as standard steel will corrode in contact with Tanalised timber. If you cut lengths on site, apply an end-grain preservative treatment to any fresh cuts to maintain the protection provided by the original pressure treatment.
FAQ
What is the difference between C16 and C24 graded timber?
C24 is a higher strength grade than C16, meaning the timber has been assessed and certified to carry greater structural loads. For floor joists, rafters and load-bearing stud work, C24 is generally the specified grade. C16 is adequate for lighter structural and general construction uses.
Is this timber suitable for outdoor use such as a decking frame?
Yes. The Tanalised pressure treatment means the preservative is driven deep into the timber fibres, giving lasting protection against rot and fungal decay. This makes 47mm x 75mm treated C24 a practical choice for decking subframes, pergola framing and other external structural applications.
What does regularised mean and how does it affect the finished size?
Regularised means the timber has been planed all round to a consistent cross-section, making it easier to work with and reducing variation between lengths. The finished size is approximately 2mm under the nominal thickness and 5mm under the nominal width, so you can expect around 45mm x 70mm in practice.
For more structural softwood options, browse our full range of C24 graded timber at Nottage Timber Merchants. We supply trade and retail customers from our yard in Bridgend, with next-day delivery available across South Wales.
