Relative Hardness Of American Woods

Description

This section is from the book "The Building Trades Pocketbook", by International Correspondence Schools. Also available from Amazon: Building Trades Pocketbook: a Handy Manual of reference on Building Construction.

Relative Hardness Of American Woods

If the hardness of shell-bark hickory is assumed to be 100, other woods will compare with it as follows:

Shell-bark hickory.......	100
Pignut hickory ..........	96
White oak ...................	84
White ash ...................	77
Dogwood......................	75
Scrub oak ...................	73
White hazel ................	72
Red oak ......................	69
White beach................	65
Black walnut................	65
Black birch ................	62

Yellow oak...................	60
White elm ...................	58
Hard maple ................	56
Red cedar ....................	56
Wild cherry ................	55
Yellow pine ...............	54
Chestnut......................	52
Yellow poplar .............	51
White birch ................	43
Butternut ....................	43
White pine....................	30

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