Rough sawn lumber comes in "true" thicknesses as reflected by the "quarters" size. Lumber sized according to "Quarters" reflects the number of quarters of an inch thick the lumber is. ... To figure the board footboard foot1⁄12 ft3. 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 one-foot (305 mm) length of a board, one foot wide and one inch (25.4 mm) thick. Board foot can be abbreviated as FBM (for "foot, board measure"), BDFT, or BF.https://en.wikipedia.org › wiki › Board_footBoard foot - Wikipedia measurement of a piece of wood, multiply the length x width x thickness in inches, then divide by 144.
How do thickness gauges work?
A rugged ultrasonic thickness gauge determines sample thickness by measuring the amount of time it takes for sound to traverse from the transducer through the material to the back end of a part and back. The ultrasonic thickness gauge then calculates the data based on the speed of the sound through the tested sample.
How do you read lumber measurements?
The first number (2) refers to the thickness of the board in inches. The second number (4) refers to the width of the board in inches. The third number (8) refers to the length of the board in feet.Jan 7, 2020