What is the Black Diamond used for on a tape measure?
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Thereof, 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.
Also, what is 3/16 on a tape measure? Inch Fraction Decimal and Millimeter Equivalents
In this manner, 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.
What is the end of a tape measure used for?
The adjustable end The metal tip at the end of your tape measure is a little bit loose for a reason. The first inch of the tape is short by 1/16 of an inch. This isn't an error: it's meant to provide you with accurate readings whether you're measuring the inside or outside edge of a surface.