14.6.2021

Comparison of properties with North American and Japanese wood

SPECIES

COMPRESSION STRENGTH

TENSIONAL STRENGTH

MODULUS OF ELASTICITY

SHEAR STRENGTH

DENSITY

Commecial/scientifitic name

Parallel to the direction of the grain N/mm2

Perpendicular to the direction of the grain N/mm2

Parallel to the direction of the grain N/mm2

Bent
N/mm2

N/mm2

N/mm2

kg/m3

FINNISH

Spruce/Picea abies

39

5,3

116

87

10.000

6,8

470

Pine/Pinus silvestris

50

7,0

95

91

10.900

9,1

540

NORTH AMERICA

Douglas fir/Pseudotsuga menziesii

43

5,9

95

66

11.300

7,2

520

Giant redwood/Sequoiadendron sempervirens

30

4,1

70

50

6.800

6,8

430

Hemloc/Tsuga heterophylla

44

5,2

69

79

10.500

8,2

480

Pitch pine/Pinus palustris

59

6,9

105

78

10.900

9,8

680

Larch/Larix decidua

50

6,5

97

90

12.500

8,2

470

JAPANESE

Sugi/ Cryptomeria japonica

35


90

65

7.500

6,0

380

Hinoki/Chamaecyparis obtusa

40


120

75

9.000

7,5

440

Akamatsu/Pinus densiflora

45


140

90

11.500

9,5

520

Kuromatsu/Pinus thunbergii

45


140

85

10.500

9,0

540

Goyamatsu/Pinus parviflora

35


80

70

7.000

8,0


The values for strength and elasticity are averages and based on measurements of flawless test pieces with a 12% level of moisture. The values are not meant as design values, for which values given in national standards must be used.