18mm plywood
The
plywood surface veneers are of Okoume or similar red hardwood; the plywood core
veneers are a species of poplar. The board is normally manufactured with an odd
number of plies, each ply being oriented at 90 degrees to the adjacent one, to
create a balanced construction. The plywood face and reverse veneers run in the
direction of the length of the sheet : long-grain plywood. Thickness tolerances
of plywood - differences are allowed from the nominal thickness of the board
after sanding. In the case of 18mm plywood, this is from 17.06mm to 18.2mm, as
a mean thickness.
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