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The board foot or board-foot is a unit of measurement for the volume of lumber in the United States and Canada. It equals the volume of a board that is one foot (30.5 cm) in length, one foot (30.5 cm) in width, and one inch (2.54 cm) in thickness. Board foot can be abbreviated as FBM (for "foot, board measure"), BDFT, or BF.
A board foot is a United States and Canadian unit of approximate volume, used for lumber. It is equivalent to 1 inch × 1 foot × 1 foot (144 cu in or 2,360 cm 3). It is also found in the unit of density pounds per board foot. In Australia and New Zealand the terms super foot or superficial foot were formerly used for this unit. The exact ...
Length. For measuring length, the U.S. customary system uses the inch, foot, yard, and mile, which are the only four customary length measurements in everyday use. From 1893, the foot was legally defined as exactly 1200⁄3937 m (approximately 0.304 8006 m ). [ 13] Since July 1, 1959, the units of length have been defined on the basis of 1 yd ...
The foot (standard symbol: ft) [ 1][ 2] is a unit of length in the British imperial and United States customary systems of measurement. The prime symbol, ′, is commonly used to represent the foot. [ 3] In both customary and imperial units, one foot comprises 12 inches, and one yard comprises three feet.
Zoll – Inch, usually 1⁄12 foot, but also 1⁄10. Fuss – Foot, varied between 23.51 cm in Wesel and 40.83 cm in Trier. Rheinfuss – Rhine foot, used in the North, 31.387 cm. Elle – Ell / cubit, distance between elbow and finger tip. In the North, often 2 feet, In Prussia 17⁄8 feet, in the South variable, often 2. +.
Scoop (utensil) Section (United States land surveying) Shot glass. Slug (unit) Spinning count. Square (unit) Square foot. Square inch. Square mile.
Cape gauge (1,067 mm) Standard gauge (1,435 mm) Russian gauge (1,520 mm) Five foot gauge (1,524 mm) Irish gauge (1,600 mm) Iberian gauge (1,668 mm) Indian gauge (1,676 mm) This list presents an overview of railway track gauges by size. A gauge is measured between the inner faces of the rails.
Girard form class. Girard form class is a form quotient calculated as the ratio of diameter inside bark at the top of the first 16 foot log to the diameter outside bark at breast height ( DBH ). Its purpose is to estimate board-foot volume of whole trees from measurement of DBH, estimation of the number of logs, and estimation of the taper of ...