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dpb dpb is offline
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Default life of a tree revealed in the rings

On 01/11/2016 11:22 AM, dpb wrote:

Try reformatting the tables -- use a fixed font and should be moderately
legible now w/o tab spacing--

Table 2€“1. Major resources of U.S. woods according to region

Western Northern and Appalachian Southern

Hardwoods
Alder, red Ash Ash
Ash, Oregon Aspen Basswood
Aspen Basswood Beech
Birch, paper Beech Butternut
Cottonwood Birch Cottonwood
Maple, bigleaf Buckeye Elm
Oak, California black Butternut Hackberry
Oak, Oregon white Cherry Hickory
Tanoak Cottonwood Honeylocust
Elm Locust, black
Hackberry Magnolia
Hickory Maple, soft
Honeylocust Oak, red
and white
Locust, black Sassafras
Maple, hard Sweetgum
Maple, soft Sycamore
Oak, red and white Tupelo
Sycamore Walnut
Walnut Willow
Yellow-poplar Yellow-poplar

Softwoods
Douglas-fir Cedar, northern white Baldcypress
Fir, western Fir, balsam Cedar,
Atlantic white
Hemlock, western Hemlock, eastern Fir, Fraser
and mountain Pine, eastern white Pine,
southern
Incense-cedar Pine, Jack Redcedar,
eastern
Larch, western Pine, red
Pine, lodgepole Redcedar, eastern
Pine, ponderosa Spruce, eastern
Pine, sugar Tamarack
Pine, western white
Port-Orford-cedar
Redcedar, western
Redwood
Spruce, Engelmann
Spruce, Sitka
Yellow-cedar

Measured mechanical properties for some selected species for comparison.
Note: "Hardness" here is the modified Janka compression test which is
measured by the load required to embed a roughly half-inch (0.444")
diameter ball to one-half its diameter depth.

Table 5€“3b. Strength properties of some commercially important woods
grown in the United States

Modulus of
Common species Moisture Specific Side Elasticity Hardness
names content gravity (xE6lbf in€“2) (lbf)

Hardwoods
Ash
Black Green 0.45 1.04 520
12% 0.49 1.60 850
White Green 0.55 1.44 960
12% 0.60 1.74 1320
Aspen
Quaking Green 0.35 0.86 300
12% 0.38 1.18 350
Beech, American Green 0.56 1.38 859
12% 0.64 1.72 1300
Cherry, black Green 0.47 1.31 600
12% 0.50 1.49 950
Locust, black Green 0.66 1.85 1570
12% 0.69 2.05 1700
Yellow-poplar Green 0.40 1.22 440
12% 0.42 1.58 540

Softwoods
Cedar
Eastern red Green 0.44 0.65 650
12% 0.47 0.88 €”
Western red Green 0.31 0.94 260
12% 0.32 1.11 350
Douglas-fir
Coast Green 0.45 1.56 500
12% 0.48 1.95 710
Interior South Green 0.43 1.16 360
12% 0.46 1.49 510
Pine
Eastern white Green 0.34 0.99 290
12% 0.35 1.24 380
Longleaf Green 0.54 1.59 590
12% 0.59 1.98 870
Ponderosa Green 0.38 1.00 320
12% 0.40 1.29 460
Redwood
Old-growth Green 0.38 1.18 410
12% 0.40 1.34 480
Young-growth Green 0.34 0.96 350
12% 0.35 1.10 420