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plywood grades

Posted by JT on July 8th, 1998 03:44 PM
In reply to Plywood grades by Bruce M on July 7th, 1998 11:34 PM [Go to top of thread]

1 of 1 people found this post helpful

Bruce, your basicly correct, but the "X" refers
only to exterior type glue. To be rated as exterior
grade, the glue must be exterior and the laminations
must be "C" or higher, so the minimum exterior grade
is CCX. The difference between lamination grades
(B, C, D, etc) is the number and size of knotholes
allowed. Don't remember the specifics of these,
but I could look them up if anybody cares.

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