Veneer Core
This
type of construction is composed of an odd number of veneer plies.
The middle ply is called the "center" and plies on either side of
the center but beneath the outer plies are called cross bands.
Outer plies are called "faces" and "backs." Panel thicknesses
are available from 1/8" to 1-1/2";1/4" or thinner. Panels are
normally 3-ply; thicker panels are 5 to 11-ply or more.
Particleboard Core
The Face
and back veneers are applied directly to a core of particleboard.
MDF Core
The face and
back veneers are applied directly to a core of (MDF) medium density
fiberboard. This type of panel construction is the most stable of
all plywood.
Lumber Core
This
type of construction is usually 5-ply consisting of a face and back
veneer, two cross-bands and a core composed of strips of lumber edge
glued into a solid slab.
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