The black diamond is meant to signify the center area between studs in a home or building. The black diamonds on the tape measure represent that spacing. The first black diamond is at 19.2” and after that black diamonds appear at 38.4”, 57.6”, 76.8” and 96”, or 8-feet.Click to see full answer. Besides, why does a tape measure have a diamond at 19 3 16?The black diamonds which appear every 19 3/16” on metal tape measures are for spacing I-beam “timbers”. Those diamond marks are there for builders who want to take advantage of the great strength of engineered I-beams by using fewer floor joists, with no loss of floor support, where codes allow.Subsequently, question is, what is 3/16 on a tape measure? These marks are for laying out 5 engineered flooring trusses per 8 feet, like those wooden I beams. Studs and traditional floor joists are usually either 16 or 24 inches on centre, and every 16 inches on the tape is marked with a triangle. Three times 16 is 48 — so you get an even three spans every 4 feet. Also Know, what is M on a measuring tape? Metric tape measures Numbers shown represent meters, decimeters (sometimes shown in red-see example picture), and centimeters. Metric is based on ‘tens’. There are 10 decimeters in a meter, 10 centimeters in a decimeter, and 10 millimeters in a centimeter.Why are there 16 inches on a tape measure?Some tape measures have markings that divide each inch into thirty-seconds of an inch. The red indicates 16-inch-on-center spacing. This is a common framing spacing for wall studs, floor joists and common roof rafters.
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