RESEARCH SUMMARY 



Structural-grade flakeboard experimentally manufactured from forest 

 residues showed mean strengths above 5,500 psi and stiffness (MOE) above 

 600,000psi. For economical transport, residues are chipped into "finger- 

 lings" in the woods. Chipping rates are estimated at 50 tons per hour for 

 large residues, and 15 tons per hour for small residues — using different 

 machines. Depending on the harvesting system selected, estimated costs 

 of fingerlings delivered to the mill range from $25 to $33 per bone-dry ton 

 for systems other than cable yarders. 



