Solid Wood Products 



2641 



Species Ovendry weight 



Pounds per thousand 

 board feet 



Oak 3,079 



Sweetgum and black tupelo 2,950 



Elm 2,918 



Hickory 2,915 



Ash 2,499 



Yellow-poplar 2,468 



Maple 2,412 



Moisture content, 

 ovendry-weight basis 



Percent 



62 

 77 

 48 

 73 

 66 

 65 

 70 



CUT-OFF SAW 

 0.935 



BAND RESAW 

 0.925 



MULTIPLE TRIM 

 SAW 0.938 



STRAIGHT LINE 

 RIP 0.930 



GANG RIP 

 0.812 



CHAMFER 

 0.953 



NOTCHER 

 0.825 



ASSEMBLY 

 AREA 

 1.000 



Figure 22-40. — Weight yield factors at various machines during conversion of hard- 

 wood lumber to assembled pallets. The yield factors are percentages in decimal form, 

 i.e., 0.825 to 82.5 percent yield. (Drawing after Perry 1976.) 



