What is the Black Diamond on a measuring tape?
Ever noticed the little black diamonds or triangles on your tape measure? The diamonds start at the 19.2 inches mark on the tape and can be utilized to help correctly space the floor trusses for a 4×8 T&G sub-floor with a span rating of 20” o.c. The black diamonds provide a visual cue to help you work faster.
What the mysterious black diamonds on measuring tapes are meant for?
THE BLACK DIAMONDS The diamond marks on tape rule blades are for spacing these engineered floor joists in new construction. Because these beams can support more weight than their dimensional lumber counterpart, they often have different spacing requirements.
How do you use a black diamond on a tape measure?
Starting at the 19.2-inch mark, the black diamond helps you find the center of the first stud. The next black diamond is 19.2 inches away from the first stud (38.4 inches from the beginning of the tape measure), and the diamonds go all the way to the 96-inch mark, or 8 feet.
Why is 16 inches marked on a tape measure?
Most tapes that have this only do it for the first few inches on the tool. As you extend the tape measure, you’ll probably see the numbers 16, 32, 48, 64, 80, 96 and so forth in red. The red indicates 16-inch-on-center spacing. This is a common framing spacing for wall studs, floor joists and common roof rafters.
What is the tape measure trick?
Here is how the trick works. Pull out the tape measure and fold in half so that the metal end of the tape measure is lined up to the current year. Your tape measure should be doubled back on itself. Since it is 2011, you need to line up the end of the tape with 111. Next, find the year you were born.
What is the 8 foot rule?
It’s called the 8-foot rule. A leader at a manufacturing facility recently gave the direction to his leadership team to engage with their employees every time they come within eight feet of one of their employees. It’s a simple rule that is simply brilliant!
What is M on a measuring tape?
On many tapes (but by no means all) you will find a small red rectangle with the letter M printed inside followed by a number. The number simply denotes the year that the blade was stamped as conforming to the Measuring Instruments Directive. On the whole this will also be the year in which that tape was manufactured.
Can you measure your shoe size with a tape measure?
Measure the width of your foot by using your measuring tape or ruler to measure from the line on one side of your tracing, to the line on the other side. Again, be certain to find the closest mark that you can (for inches, use the closest 16th mark).
Why does the end of the tape measure move?
It wiggles on its rivets to make up for the hook’s thickness. Push the tip against something for an inside measurement, and the hook is included in the reading; hook it on the end of a piece for an outside measure, and the resulting gap equals the space the hook would take up.
How accurate are tape measures?
The tape measures themselves are manufactured with varying degrees of quality, but as per NIST Handbook 44 (PDF), a six-foot-long tape used for commerce must be accurate to within 1/32 of an inch. As anyone who’s ever tried to build anything knows, our friend the humble tape measure is a useful tool.
Why are tape measures yellow?
Tape measures often have black and red measurements on a yellow background as this is the optimal color combination for readability.
What is a Class 1 tape measure?
Classes explained Class 1 rated tapes are the most accurate and an error of no more than ±1.1mm over a 10m length can be anticipated, where a steel tape is used with a pulling force of 50N at 20°.
What is 7 16 on a measuring tape?
Inch Fraction Decimal and Millimeter Equivalents
What do the symbols on a tape measure mean?
Many tape measures add red numbers (or some other graphical standout) every 16-inches, a very common spacing for studs in house framing. 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.