CLS C16 Kiln Dried and Better Timber - 50 x 100 x 2400mm

  • Planed with rounded corners for easy handling
  • Stress Graded to C16 specification for structural applications
  • Kiln dried for extra stability
  • Ideal for wall partitioning and studwork
  • Responsibly sourced
  • PEFC Certified

Please Note: Timber lengths are subject to availability. Once your order has been placed, your local branch will be in touch with information on the lengths available if they differ from the lengths specified on your order.

£3.42 per Metre
In stock
Product code
Stock availability ()
  • BOREHAMWOOD: 2371.2
  • CANNOCK: 1190.4
  • COVENTRY: 1514.4
  • CROYDON: 465.6
  • MILTON KEYNES: 1576.8
  • PETERBOROUGH: 1365.6
  • Sheffield Trade: 381.6
  • Timberworld BRADFORD: 12619.2
  • Timberworld Bristol: 1862.4
  • Timberworld HULL: 1286.4
  • Timberworld KIDDERMINSTER: 336
  • Timberworld LEEDS: 1149.6
  • Timberworld MANCHESTER: 1800
  • Timberworld NORTH EAST: 5320.8
  • Timberworld OLDBURY: 859.2
  • Timberworld READING: 1948.8
  • Timberworld SHEFFIELD: 4432.8

Buying in bulk - Get a custom quote


What is CLS Timber? 

First thing’s first, what is CLS timber? CLS timber is created from woods such as kiln-dried fir, pine or spruce. During the manufacturing process, it is planed, treated and shaped with four smoothed surfaced sides and distinctive rounded (or radiused) edges.

What Does CLS Timber Stand For? 

CLS stands for ‘Canadian Lumber Standard’, as it was originally manufactured in Canada and used for building sturdy timber-framed houses there before it became a popular option in the UK, too.

The benefits of CLS Timber 

When it comes to CLS timber, there are several key benefits to consider. One of its main advantages is its exceptional strength and the fact it has superior durability over other types of wood timber, thus making it ideal for construction and internal structural work.

Due to its rounded edges, CLS timber is also particularly easy to transport and safe to handle. As CLS timber has a lack of large knots on its edges, it’s also better able to reduce the spread of potential fire outbreaks.

Another benefit to consider is the fact that CLS timber is available in a variety of widths and lengths to choose from, making it a great option for not only minimising time spent on cutting it to size but for reducing the cost from timber wastage.

More Information
More Information
Width (mm)89 mm
Thickness (mm)38 mm
Strength classC16
CertificationPEFC® Certified
Drying processKiln-dried
FinishCanadian Lumber Standard (CLS)
Surface treatmentUntreated
Delivery Information

Delivery for branch stocked items is currently 2-5 working days and items will be transferred nationally throughout our branches. Click & Collect is only available from eligible branches that have all items on your order in stock. A minimum order value of £120 (incl. VAT) applies to products Delivered from Stock. FREE delivery is available on orders over £600 (incl. VAT)*. No minimum order value is required for Click and Collect orders. Please note, deliveries from our branch will be delivered to the nearest kerbside at the address specified.

You will be contacted by your local branch to confirm delivery/collection dates.

Items delivered directly from a supplier are subject to specific lead times detailed on the product image. Please be aware that delivery rates from different suppliers may vary, for full details, please visit our delivery details page.

Please note: If you're ordering multiple items, these may arrive on separate deliveries. Lead times may vary for items delivered directly from one of our trusted suppliers. Whilst assistance in offloading materials is appreciated this is conducted at the customer's own risk. For more information about deliveries and charges from Timberworld, please visit our delivery details page
*Excludes products delivered Direct from Supplier which may be subject to supplier-specific delivery charges.
Metric/Imperial Conversions


1 metre (1m) is approximately 3ft 3in (39.37in). 1 inch when converted to metric is 25.4mm.

However, when purchasing timber, you will find that there is usually a slight difference between the actual conversion measurement and the measurement used, for example, items measuring 1 inch may be sold as 25mm. Because the industry conversion is fractionally different than the actual imperial conversion, you should always measure in metric (mm, cm, m) to avoid any measurement mistakes.


Imperial (inches) Actual (mm) Conversion (mm)
1 25.4 25
2 50.8 50
3 76.2 75
4 101.6 100
5 127 125
6 152.4 150
7 177.8 175
8 203.2 200
9 228.6 225
10 254.0 250
11 279.4 275
12 304.8 300
24 (2ft) 609.6 600
36 (3ft) 914.4 900
48 (4ft) 1219.2 1200
60 (5ft) 1524.0 1500
72 (6ft) 1828.8 1800
84 (7ft) 2133.6 2100
96 (8ft) 2438.4 2400