The maximum allowable spacing between horizontal wireway supports is 10 feet.
The foot (standard symbol: ft) is a unit of length in the British Imperial and American systems of measurement. The apostrophe symbol ' is a commonly used alternative symbol. Since the International Yards and Pounds Convention of 1959, one foot has been defined as exactly 0.3048 meters
1 foot includes 12 inches. This corresponds to 30.48 centimeters. It was originally based on the length of the foot, hence the name ft.
feet is the plural form of foot. the foot is the singular form of feet.
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