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Log rules are used to determine the lumber content (board feet) in logs. Made from hickory and walnut with stainless steel oval head. Sharp black figures are protected by a polyurethane coating. Available in several common measuring scales Doyle, Decimal C, International, Scribner & Ontario Rule. Also available in one version with Doyle ru...
This 36" fibreglass ruler can be used to calculate the number of board feet in a log up to 30" in diameter.
- graduations in 1" class with break at 3/4"
- measures volume in 1" diameter classes for 10 log lengths from 8 to 17 feet long
- defect deductions shown for 20%, 25%,33% and 66% that can then be deducted from the gross diameter of the log...
These fiberglass Log Rules are specially designed for use in Ontario. They have graduations in 1” classes, with the break at ¾”. They also includes defect deductions, for 20, 25, 33, and 66% in 1” values.
The Ontario Metric Cube Log Rule has graduation in 2cm diameter classes. Available in two sizes, 54 cm (MC-1) and 78 cm (MC-2). Other provinc...