what does cls stand for when refering to timber? (UK)

---

Request for Question Clarification by denco-ga on 11 Aug 2005 13:05 PDT

Howdy jonnypop-ga,

Despite it being "Canadian," I think Bobbie7 is correct in that CLS
appears to stand for Canadian Lumber Standards (or Standard or Sizes).

Please see my comment below for details.

Did you want Bobbie7 to post his comment as an answer?  Thanks!

Looking Forward, denco-ga - Google Answers Researcher

According to Forestry acronyms, CLS stands for Canadian Lumber Standards. 
http://www.for.gov.bc.ca/hfd/library/documents/acronyms/c.htm

Is this the answer you're looking for?

Thanks,
Bobbie7

Hi - thanks Bobbie - I'm not sure - I'm in London so I don't think cls
stands for 'Canadian...' but I could be wrong! :-)

Here they say that European Whitewood is known as CLS Timber.

"We are looking to establish a business relationship with Lithuanian
Timber Exporters of European Whitewood, otherwise known as CLS
Timber."
http://www.export-import.lt/proppage1.php?uid=93&lang=en

Howdy jonnypop-ga,

Despite it being "Canadian," I think bobbie7-ga is correct in that CLS
appears to stand for Canadian Lumber Standards (or Standard or Sizes).

From the Leisure Deck (UK) web site.
http://www.leisuredeck.co.uk/new.html

"All timber deck boards should be specified with 'pencil' radii to all
corners (i.e Canadian Lumber Standard)."

From the ebuild (UK) web site.
http://www.ebuild.co.uk/forums/messages/778/3624.html?1094134204

"Does anybody know what CLS stands for (as in 100x50mm CLS)?
...
canadian lumber standard"

It takes a free registration for the following reference, but it appears
to be a definitive source.  From the askTRADA ("All you need to know about
timber") UK web site on surfaced timber.
http://www.trada.co.uk/techinfo/asset/send/918/content/wis2-3_37May05/ar01s04.html

"BS EN 1313-1 and BS EN 336 include structural softwood surfaced to sizes
which originated in North America as imperial dimensions. Known as CLS or
ALS (Canadian or American Lumber Sizes), softwood is now widely produced
to these sizes in the UK and in Europe. The timber has rounded arrises not
exceeding 3 mm radius."

Looking Forward, denco-ga - Google Answers Researcher