Properties of Timber

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Timber Density kg/m3 Thermal Conductivity (W/m K) Shear strength parallel to the grain (MPa)  

Softwoods

         
 
        
Cedar 420 0.11 10.8  
Douglas Fir (Columbian Pine, Oregon Pine) 530      
Deal 610 0.13    
Fir (european) 450 0.11 9.7  
Redwood (Scots Pine, Red Pine, Red Deal, Yellow Deal) 430      
European Spruce 460      
Pitch Pine 650 0.14 14.3  
Parana Pine 560      
Pine (european) 480 0.11 10.6  
Spruce 400 0.10 9.4  
Western Hemlock 500      
         

Hardwoods

        
         

Ash

 690 0.16 16.6  

Balsa

 160 0.06    
Beech 690-700 0.17 15.9  
Birch 670 0.17 16.2  
Ebony 1010 0.26 19.4  
Elm 510 0.14 12.5  
Iroko 660      
Jarrah 860 0.22 16.7  
Mahogany (African) 560      
Mahogany (Honduras) 530      
Mahogany (South American) 550 0.14 13.8  
Maple 740 0.17    
Oak (English) 720 0.16 13.7  
Obeche 370 0.10 7.7  
Poplar 450 0.11 9.7  
Rosewood 860 0.22    
Sapele 640      
Sycamore 560 0.16 17.1  
Teak 650 0.14 14.8  
Walnut 660 0.14    
Walnut (African) 550 0.14 10.0  
Willow 420 0.11 8.1  
Yew 670 0.17    
         
         
Manufactured Board        
         
Plywood 530 0.14    
Plywood (fire resistant) 560 0.15    
         
         

Note:-  Timber @12% moisture content by mass, as with all natural products data to be used with adequate caution.