By using the expansion
and contraction coefficient in the table, it is possible to calculate
the probable variation in the width of a piece of wood board. The
formula is as follows:
Expansion and Contraction Coefficient Cherry..........0.00248
Walnut..........0.00274
Ash..........0.00274
Yellow Birch..........0.00338
Maple..........0.00353
White Oak..........0.00365
Red Oak..........0.00369
Beech..........0.00431