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Wood Beams - Strength of Material

Bending and compression strength of wood species used in beams.

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Compression and bending strengths of wood species typically used in beams:

Maximum Stress (psi)
Wood Species	Bending		Compression
	Horizontal Shear - τ -		Perpendicular to Grain - σ -		Parallel to Grain - σ -
	Wet	Dry	Wet	Dry	Wet	Dry
Birch, Yellow	1417	1668	477	715	960	1200
Fir, Douglas	1417	1668	417	625	1360	1700
Larch, Western	1417	1668	417	625	1360	1700
Maple, Red	1271	1495	410	615	880	1100
Oak, Black	1369	1610	590	885	920	1150
Pine, Eastern White	1222	1438	223	335	960	1200
Redwood	1320	1553	433	650	1200	1500

1 psi (lb/in²) = 6895 Pa (N/m²)
1 MPa = 10⁶ Pa

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