board-measure

“The board-measure is stamped on the back of the blade of the square,”

Handwork in Wood

“Another style, instead of an Essex board-measure, and the hundredths graduation has a rafter-table.”

Handwork in Wood

“Essex board-measure and the Lumberman's board-measure are described in”

Handwork in Wood

“It includes graduations in hundredths, thirty-seconds, sixteenths, twelfths, tenths, and eighths of an inch, also a brace-measure, an eight-square measure, and the Essex board-measure.”

Handwork in Wood

“At the former mine the average cost of timber is under $10 per M board-measure, while at the latter its price would be $50 per M board-measure; although labor is about of the same efficiency and wage, the cost in the Ivanhoe by square-setting would be about 65 cents per ton of ore broken.”

Principles of Mining Valuation, Organization and Administration