3544 



Chapter 28 



1.0 TON 



HARDWOOD LOGS- 

 (O.D. WEIGHT) 



FUEL FOR 

 KILN HEAT 



DRY LUMBER 

 .437 TON 



WOOD CHIPS 

 .248 TON 



SHAVINGS a SAWDUST 

 .093 TON 



^HOGGED FUEL 

 .023 TON 



TOTAL 



.801 TON 



+ .199 TON 

 TO KILN 



Figure 28-27. — Materials balance for SDR sawmill system based on ovendry (OD) 

 weight. (Drawing after Harpole et al. 1981.) 



Key statistics for the proposed enterprise are as follows: 



Capital investment $11 ,858,402 



Operating cost, annual $ 6,520,720 



Sales, annual $13,327,260 



Net profit, annual (before income tax) $ 6,806,540 



Return on sales 51 percent 



Return on investment 53 percent 



Employees 84 



Lumber output, annual 60,400 Mbf 



Energy requirements/thousand board feet of output 



Electrical 69.3 kWh 



Wood/bark fuels 4.8 x 10^ Btu 



Raw material costs and net profit are based on purchasing logs at a cost of 

 $51.72/Mbf of lumber recovered, selling residues totalling $10.69/Mbf of lum- 

 ber recovered, and selling the lumber at $220.65/Mbf fob mill. 



Annually, the proposed enterprise would consume (ovendry-weight basis) 

 about 1 17,961 tons of logs with bark. Lumber produced would total 60,400 Mbf 

 or 51,438 tons, ovendry basis (table 28-4). 



