Economic Feasibility Analyses 3545 



Table 28-4. — Estimate of SDR sawmill roundwood requirement and product output, 

 annual basis (Harpole et al. 1981) 



Roundwood input-^ 



Bark and log trim 



Trimmed logs 



Total 



Product outputs 



Fuel for dry-kilns^ 



Dry lumber"^'^ 



Wood chips^ 



Dry sawdust and shavings^ 



Hogged fuel^ 



Total 117,961.3 1.953 



'Assumes 1 17,961 .3 ovendry tons of low- to medium-density hardwood will yield 60,400 Mbf of 

 lumber. 



^Assumes an average ovendry weight of 28.7 pounds/cubic foot, at green volume. 



^Annual heat-energy requirements for kilns are estimated to be 288,936 x 10^ Btu. Assumes 

 drying from 85 percent to 10 percent MC, dry basis; ovendry weight at green volume of 28.7 pounds/ 

 cubic foot; and 2,700 Btu/pound of H2O removed. Heat-energy to steam assumed to be 6,150 Btu/ 

 ovendry pound of wood/bark fuel. 



"^Assumes about 1 ,703 pounds/Mbf of lumber, or about 60,400 Mbf of lumber output per year. 



^Marketable output. 



28-23 $14.0 MILLION— MANUFACTURE OF PLATEN- 

 PRESSED FLAKEBOARD CORES FOR DECORATIVE 

 HARDWOOD PLYWOOD" 



In the United States six plants annually produce in aggregate about 437 

 million square feet, surface measure, of 'A-inch-thick decorative hardwood 

 plywood for wall panels. Core material for about 150 to 200 million square feet 

 of this market is imported 1/6-inch rotary-peeled lauan veneer, costing about 

 $143/thousand square feet surface measure, delivered. Most of this is assembled 

 with a 1/25 -inch back veneer and a 1/28-inch (or slightly thicker) decorative 

 hardwood face veneer to compose a l^-inch wall panel. Manufacturers are 

 concerned about future supply and cost of the lauan core veneer. 



The proposed enterprise would annually manufacture 150 million square feet, 

 surface-measure 1/6-inch basis, of hardwood platen-pressed 4- by 8-foot sheets 

 of flakeboard in which flakes are oriented. In such boards with flakes 0.015- to 



2^ Abstracted from Briggs (1981). 



