You are here: Home / Research Topics / Research Highlights / Individual Highlight

Research Highlights

Individual Highlight

RAYSAW Computer Program Can Grade Hardwood Logs and Calculate its Value

Photo of Screenshot of Hardwood Log Sawing Program showing control panel, log end and side views. Ed Thomas, USDA Forest ServiceScreenshot of Hardwood Log Sawing Program showing control panel, log end and side views. Ed Thomas, USDA Forest ServiceSnapshot : RAYSAW is a computer program developed by Forest Service scientists for hardwood log sawing that processes high-resolution laser-scanned hardwood logs with defects and user-described sawing patterns and creates a set of lumber that can be graded or processed using other available Forest Service computer programs. The laser scan surface allows log volumes and sawing residue to be precisely determined. Thus, a complete valuation of a log, including lumber, cant, bark, sawdust, and residue can be calculated.

Principal Investigators(s) :
Thomas, Ed 
Research Location : Princeton, West Virginia
Research Station : Northern Research Station (NRS)
Year : 2013
Highlight ID : 485

Summary

Determining the most efficient and highest profit use of a hardwood can be a difficult endeavor. RAYSAW is a computer program developed by Forest Service scientists that allows researchers to examine various processing strategies for hardwood logs given log shape, size, and grade. In addition, RAYSAW can grade hardwood logs and estimate grade recovery using the Forest Service Hardwood Log Grades and Lumber Grade Yield tables. Coupled with current lumber price data, RAYSAW can estimate volume and value recovery estimates directly. The laser scan surface allows log volumes and sawing residue to be precisely determined. Thus, a complete valuation of a log, including lumber, cant, bark, sawdust, and residue can be calculated.

Strategic
Program Areas

Priority
Areas