A linear foot is a measurement of length that is 12 inches long and is measured in a straight line. It is used to measure how long something is in a straight line, and is commonly used in construction to determine how much of a certain material is needed. For example, boards and other oblong materials that depend on length rather than width are sold by linear foot.

To calculate linear feet, all you need is a tape measure. You measure the length in inches and then divide the total number of inches by 12 to convert to feet. The resulting number is the linear footage. For example, 84 inches in length is 7 linear feet (84/12 = 7).

It is important to note that linear feet describe straight lines, meaning the measurement is one-dimensional. This is different from square feet, which refers to the measurement of area and is two-dimensional. Most prices on flooring products are quoted in square feet, while trim and dimensioned lumber are sold by linear measurements.

In summary, a linear foot is a measurement of length that is 12 inches long and is measured in a straight line. It is commonly used in construction to determine how much of a certain material is needed. To calculate linear feet, you measure the length in inches and then divide the total number of inches by 12 to convert to feet.