Canada Wood Today | The Canada Wood Group

Continuous Discussion on CLT JAS Standard

Hidehiko Fumoto

By Hidehiko Fumoto

Deputy Director and Manager Technical Services, Canada Wood Japan

June 8, 2014

continuous-CLT-JASAs one of the remaining challenges after the establishment of JAS*1 standard for cross laminated timber (CLT) in December 2013, is the fact that the species group concept for the boards has still not been accepted.  Recently COFI’s dialog with MAFF*2, however, came up with a favourable development for this issue.  A MAFF official hinted that they may consider revising the CLT JAS standard this year or next year so that the boards for CLT could be categorized under species groups.  This potential revision is quite irregular because MAFF usually works for revising the JAS standards at a 5-year interval.  According to the official, in case that the JAS glulam standard revision work, which is scheduled for revision this year, if results in accepting the species group concept for the glulam laminas is achieved, the concept may then be successfully applied for CLT boards as well.  It is therefore desirable for us to make as much efforts as possible so that the glulam standard committee accepts the lamina species groups. COFI is continuing dialogue with MAFF to advance species group recognition. The objective of this work is to open the door for Canadian species groups such as SPF to access the lamina and CLT markets without the requirement of sorting by sub-species.


1) Japanese Agricultural Standard

2) Ministry of Agriculture, Forestry and Fisheries