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Thursday, August 28, 2014

Wood streangths

Wood Species
Specific Gravity*
Compressive Strength (psi)
Bending Strength (psi)
Stiffness (Mpsi)
Hardness (lb)
Alder, Red
0.41
5,820
9,800
1.38
590
Ash
0.60
7,410
15,000
1.74
1,320
Aspen
0.38
4,250
8,400
1.18
350
Basswood
0.37
4,730
8,700
1.46
410
Beech
0.64
7,300
14,900
1.72
1,300
Birch, Yellow
0.62
8,170
16,600
2.01
1,260
Butternut
0.38
5,110
8,100
1.18
490
Cherry
0.50
7,110
12,300
1.49
950
Chestnut
0.43
5,320
8,600
1.23
540
Elm
0.50
5,520
11,800
1.34
830
Hickory
0.72
9,210
20,200
2.16
Maple, Hard
0.63
7,830
15,800
1.83
1,450
Maple, Soft
0.54
6,540
13,400
1.64
950
Oak, Red
0.63
6,760
14,300
1.82
1,290
Oak, White
0.68
7,440
15,200
1.78
1,360
Poplar
0.42
5,540
10,100
1.58
540
Sassafras
0.46
4,760
9,000
1.12
Sweetgum
0.52
6,320
12,500
1.64
850
Sycamore
0.49
5,380
10,000
1.42
770
Walnut
0.55
7,580
14,600
1.68
1,010
NORTH AMERICAN SOFTWOODS
Wood Species
Specific Gravity*
Compressive Strength (psi)
Bending Strength (psi)
Stiffness (Mpsi)
Hardness (lb)
Cedar, Aromatic Red
0.47
6,020
8,800
0.88
900
Cedar, Western Red
0.32
4,560
7,500
1.11
350
Cedar, White
0.32
3,960
6,500
0.80
320
Cypress
0.46
6,360
10,600
1.44
510
Fir, Douglas
0.49
7,230
12,400
1.95
710
Hemlock
0.45
7,200
11,300
1.63
540
Pine, Ponderosa
0.40
5,320
9,400
1.29
460
Pine, Sugar
0.36
4,460
8,200
1.19
380
Pine, White
0.35
4,800
8,600
1.24
380
Pine, Yellow
0.59
8,470
14,500
1.98
870
Redwood
0.35
5,220
7,900
1.10
420
Spruce, Sitka
0.40
5,610
10,200
1.57
510
WORLD WOODS (OTHER THAN NORTH AMERICA)
Wood Species
Specific Gravity*
Compressive Strength (psi)
Bending Strength (psi)
Stiffness (Mpsi)
Hardness (lb)
Bubinga
0.71
10,500
22,600
2.48
2,690
Jelutong
0.36
3,920
7,300
1.18
390
Lauan
0.40
7,360
12,700
1.77
780
Mahogany, African
0.42
6,460
10,700
1.40
830
Mahogany, Honduras
0.45
6,780
11,500
1.50
800
Purpleheart
0.67
10,320
19,200
2.27
1,860
Rosewood, Brazilian
0.80
9,600
19,000
1.88
2,720
Rosewood, Indian
0.75
9,220
16,900
1.78
3,170
Teak
0.55
8,410
14,600
1.55
1,000