M
Abbreviation for 1,000 units of building material, such as bricks or board feet of lumber; used in board measure; from the Roman symbol for 1,000. See also board foot. (Bucher, 1996)
Abbreviation for 1,000 units of building material, such as bricks or board feet of lumber; used in board measure; from the Roman symbol for 1,000. See also board foot. (Bucher, 1996)