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.
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 measuring tape has black diamond?
The black diamonds, as they’re commonly called (sometimes shown as black circles instead), are actually stud or joist marks. Whilst not featuring on all tapes, stud marks frequently appear at 16” intervals and joist marks at 19.2” intervals.
How do you read a tape measure meter?
How to Read a Tape MeasureFind/read the markings. On a standard tape measure, the biggest marking is the inch mark (which generally has the biggest number, if it has them).As the increments decrease, so does the length of the mark. Read 1 inch. Read one-half inch. The remaining markings follow a similar pattern.
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.
Why is a tape measure curved?
Have you ever wondered why the blade on your tape measure is curved? The concave design helps keep the blade rigid when extended. This curve allows the blade to “stand out” while measuring and helping you read the measurement.
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 the red dot on a tape measure?
The red indicates 16-inch-on-center spacing. This is a common framing spacing for wall studs, floor joists and common roof rafters. If you decide to space framing at 24-inch centers, the red marks will be at every other foot marking on the tape measure.
Why is the end of a tape measure loose?
The metal tip at the end of your tape measure is a little bit loose for a reason. 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. This feature is known as “true zero”.
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.
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°.
How many inches are in a foot?
How do you measure inches with your fingers?
The first joint of an index finger is about 1 inch long. When a hand is spread wide, the span from the tip of the thumb to the tip of the pinkie is about 9 inches; from the tip of the thumb to the tip of the index finger, around 6 inches. It’s about 18 inches from the elbow to the tip of the middle finger.