. Lumber yield from western white pine in northern Idaho. Lumber Mensuration; Western white pine Idaho. The lumber cubic volumes, shown in tables 5-10 of the appendix, are based on actual dimensions of the surfaced dry lumber taken from the planer settings at the time of the study. The sawdust cubic volumes, also shown in tables 5-10 of the appendix, were calculated by using an average saw kerf of inch and the computed surface area of the rough green lumber from each log. The combined volumetric shrinkage plus the cubic volume of planer shavings was calculated by subtracting the cubic vol
. Lumber yield from western white pine in northern Idaho. Lumber Mensuration; Western white pine Idaho. The lumber cubic volumes, shown in tables 5-10 of the appendix, are based on actual dimensions of the surfaced dry lumber taken from the planer settings at the time of the study. The sawdust cubic volumes, also shown in tables 5-10 of the appendix, were calculated by using an average saw kerf of inch and the computed surface area of the rough green lumber from each log. The combined volumetric shrinkage plus the cubic volume of planer shavings was calculated by subtracting the cubic volume of surfaced dry lumber from the cubic volume of rough green lumber. The residue volume was calculated by subtracting the lumber, sawdust, volumetric shrinkage, and planer shaving volumes from the gross cubic log volume. It includes a small amount of sawdust produced from the production of slabs, edging, and trim ends. The 1,402 merchantable logs produced 203, 053 board feet of lumber. The average weighted recovery of merchantable logs was 122 percent. A significant linear relationship was found between percent recovery and diameter (see fig. 2). As expected, percent recovery decreased with an increase in diameter. RESULTS 135 130 120 125. 5 10 15 20 25 30 35 40 igure 2.â. SMALL END DIAMETER (INCHES) â Percent recovery of all merchantable logs over log scaling Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Plank, Marlin E. cn; Snellgrove, Thomas A. cn; Pacific Northwest Forest and Range Experiment Station (Portland, Or. ). Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U. S. Dept. of Agriculture
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