Interior West Douglas Fir Wood

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Interior West Douglas Fir Wood
Categories:	Wood and Natural Products; Wood; Softwood
Key Words:	Pseudotsuga Menziesii; Lumber, Timber
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Physical Properties	Metric	English	Comments

Specific Gravity	0.420 g/cc	0.420 g/cc	Green, based on volume
	0.500 g/cc	0.500 g/cc	12% moisture content, based on volume

Mechanical Properties	Metric	English	Comments
Hardness, Wood Indentation	2269 N	510.1 lb (f)	Green
	2936 N	660.0 lb (f)	12% moisture content
Tensile Strength at Break	2.00 MPa	290 psi	Green, perpendicular to grain
	2.41 MPa	350 psi	12% moisture content, perpendicular to grain
Modulus of Elasticity	10.4 GPa	1510 ksi	Green
	12.6 GPa	1830 ksi	12% moisture content
Modulus of Rupture	0.0531 GPa	7.70 ksi	Green
	0.0869 GPa	12.6 ksi	12% moisture content
Compressive Strength	2.90 MPa	420 psi	Green, perpendicular to grain
	5.24 MPa	760 psi	12% moisture content, perpendicular to grain
	26.7 MPa	3870 psi	Green, parallel to grain
	51.2 MPa	7430 psi	12% moisture content, parallel to grain
Shear Strength	6.48 MPa	940 psi	Green, parallel to grain
	8.89 MPa	1290 psi	12% moisture content, parallel to grain
Impact	26	26	Impact bending in inches, green
	32	32	Impact bending in inches, 12% moisture content
Work to Maximum Load	0.0496 J/cm³	7.20 in-lb/in³	Green
	0.0731 J/cm³	10.6 in-lb/in³	12% moisture content

Thermal Properties	Metric	English	Comments
Thermal Conductivity	0.120 W/m-K	0.830 BTU-in/hr-ft²-°F	Oven Dry, US origin
	0.144 W/m-K	1.00 BTU-in/hr-ft²-°F	12% Moisture Content, US origin
Shrinkage	4.8 %	4.8 %	Radial, from green to oven dry, US origin
	7.5 %	7.5 %	Tangential, from green to oven dry, US origin
	11.8 %	11.8 %	Volumetric, from green to oven dry, US origin

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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