38mm x 63mm CLS (3x2 CLS) Treated Timber FSC®

38mm x 63mm CLS (3x2 CLS) Treated Timber FSC®

Our 38mm x 63mm CLS (Canadian Lumber Standard) Treated Timber is a precision-machined, FSC® Certified construction timber, kiln dried for stability and UC2 clear treated for protection in internal and covered external applications. Commonly referred to in the trade as 3x2 CLS (nominal size 47mm x 75mm), this timber is supplied in 2.4m and 4.8m lengths, making it ideal for a range of construction and framing requirements. Consistent sizing ensures a professional fit, while the kiln drying process helps minimise movement and shrinkage. UC2 clear treatment offers resistance to fungal decay and insect attack in interior or covered exterior situations. Its eased edges reduce splintering, making it a popular choice for both trade professionals and DIY users.

Product Features / Benefits

This product is a reliable and versatile material for projects including:

• Timber framing
• Internal partition walls
• Shed construction
• Loft conversions
• General joinery

Product Features

• Nominal size: 47mm x 75mm
• Finished size: 38mm x 63mm
• Available lengths: 2.4m & 4.8m
• FSC® Certified for responsibly sourced timber
• Kiln dried for stability
• UC2 clear treated for protected interior/covered exterior use
• Smooth planed finish with eased edges for easier handling

Applications & Versatility

Suitable for:

• Internal stud wall construction
• Loft and attic framing
• Timber framework for sheds and garden structures
• Joinery and carpentry projects
• General construction where strength, stability, and a clean finish are required

Features & Benefits

• Strength & Stability – kiln dried for reduced movement
• Precision Finish – smooth planed with eased edges
• Long-Lasting – UC2 clear treatment extends service life
• Sustainable – FSC® Certified, responsibly sourced timber
• Versatile Use – suitable for a wide variety of building projects

Technical Specifications

• Nominal Size: 47mm x 75mm
• Finished Size: 38mm x 63mm  
• Available Lengths: 2.4m, 4.8m 
• Treatment Class: UC2 Clear Treated 
• Timber Grade: CLS
• Certification: FSC® Certified
• Surface Finish: Planed with eased edges 
• Moisture Content: Kiln dried
• Application Class: Internal and covered external use 

Additional Information

Supplied individually from both our Glasgow and Edinburgh branches. Our knowledgeable team can assist you in calculating the correct quantities for your project, whether you are working on a small domestic job or a large-scale construction.

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