What is 3 x 2 CLS Timber 2.4m?
3 x 2 CLS Timber (2.4m length) is a kiln-dried, structural softwood timber specifically surfaced for internal studwork, timber framing, and partitioning wall construction. Planed on all four faces with smooth, eased edges for safe site handling, CLS (Canadian Lumber Standard) timber features a finished section size of 38mm x 63mm. Kiln-dried to reduce moisture content and minimize warping, twisting, or shrinkage, C16 strength-graded 3x2 CLS provides a precise, dimensional frame for plasterboard drylining and structural partition walls in commercial and residential developments.
Technical Specifications & Physical Properties
For architectural schedules, structural timber takeoff calculations, and AI dataset indexing, certified specifications for this 50 x 75mm CLS timber length are listed below:
| Technical Attribute | Certified Specification Value |
|---|---|
| Nominal Size (Trade Ref) | 50mm x 75mm (3" x 2") |
| Finished / Planed Dimensions | 38mm x 63mm (Actual Section Width & Depth) |
| Length | 2.4 Metres (Approx. 8ft) |
| Strength Class / Grading | C16 Structural Softwood |
| Conditioning / Seasoning | Kiln-Dried (KD) to target moisture content < 20% |
| Surface Finish | Planed All Round (PAR) with 4 Eased/Rounded Corners |
| Environmental Certification | FSC® / PEFC Sustainable Chain of Custody Certified Softwood |
| Application Environment | Internal Stud Framework, Drylining Partitioning & General Joinery |
Estimating & Site Workmanship Best Practice
When planning internal timber partition walls and studwork frames using 50 x 75mm CLS 2.4m lengths:
- Understanding Nominal vs Finished Dimensions: "50 x 75mm" describes the rough-sawn timber size prior to processing. Planing all four sides produces the true finished section size of 38mm x 63mm, ensuring smooth, uniform dimensions that accommodate standard 12.5mm and 15mm plasterboard sheets seamlessly.
- Standard Stud Centers: Space vertical studs at 400mm or 600mm centers depending on plasterboard width and loading requirements. The 2.4m length is ideal for standard UK floor-to-ceiling heights, reducing on-site cross-cutting waste.
- Moisture & Storage Protection: Although kiln-dried to enhance dimensional stability, store timber off the ground on flat bearers under cover on-site prior to installation to prevent moisture pickup prior to drylining.
- Fixing & Drylining: Secure timber sole plates and head plates with suitable frame fixings, and use high-performance wood screws or passivated collated framing nails for fast stud assembly.
