by dimensional change coefficient)
numbers in this chart reflect the dimensional change coefficient for
the various species, measured as tangential shrinkage or swelling within
normal moisture content limits of 6-14 percent. Tangential change values
will normally reflect changes in plainsawn wood. Quartersawn wood will
usually be more dimensionally stable than plainsawn.
The dimensional change coefficient can be used to calculate expected
shrinkage or swelling. Simply multiply the change in moisture content
by the change coefficient, then multiply by the width of the board.
in mind that engineered wood is much more dimensionally stable than
solid wood and changes will be less than those given by the above formula.)
"National Wood Flooring Association Technical Publication No. A200",
p.7: orig. from "Wood Handbook: Wood as an Engineering Material",
Agriculture Handbook 72, Forest Products Laboratory, Forest Service,
US Dept of Agriculture, revised 1987.