On Sat, 24 Jul 2004 00:51:09 GMT, patriarch
wrote:

CDX describes the grade of plywood. CDX has one face side, with many
repaired knots & splits, and a back side, X, with essentially whatever
happens to come out. In other words, rough construction grade.


C and D are the grades of the two faces. X is for eXterior glue used
to bond the plies together.