Knowledge Builders

what do the black diamonds on a measuring tape mean

by Emmalee Torp Published 3 years ago Updated 2 years ago
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The black diamonds which appear every 19 3/16” on metal tape measures are for spacing I-beam “timbers.” Several wood-product manufacturers offer I-beam “timbers” as a substitute for solid lumber floor joists. The diamond marks on tape rule blades are for spacing these engineered floor joists in new construction.

Full Answer

What does the black diamond represent on a measuring tape?

The black diamonds on the tape measure represent that spacing. The first black diamond is at 19.2 inches” and after that black diamonds appear at 38.4, 57.6, 76.8, and 96 inches or 8 feet. That is one less stud for every 8 feet of wall, counting the beginning and end studs.

What that Black Diamond on a tape measure is actually for?

The black diamonds on a tape measure are supposed to help with finding studs and specific points between them. They are meant to be used together with the red numbers to find the studs and other relevant spots.

What does a black diamond on a tape measure mean?

What does the black diamond mean on the measuring tapes? The black diamond marks every 19.2" on our tape rule blades. This is for spacing of engineered joists common on job sites. The 19.2 inches allows for a break at 8 foot to accommodate full sheets of plywood.

What the Black Diamond on tape measure actually is?

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. That's the common interval for boarding.

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What Does The Black Diamond On a Tape Measure Mean?

It wasn’t until I was an adult that I finally set out to learn what those little black diamonds the the tape measure meant. And to be totally honest, I didn’t take the time to figure out what those black diamonds meant even after I’d started making a living out of using a tape measure!

Final Thoughts

So that’s the deal behind the black diamonds on tape measures. To be honest, for how hand of a tool these particular markings are, it’s surprising how many people aren’t aware of what they’re actually for. I know there’s times where I could have definitely used them to make my work faster.

Why are there black diamonds on tape measure?

The black diamonds on a tape measure are supposed to help with finding studs and specific points between them. They are meant to be used together with the red numbers to find the studs and other relevant spots.

What does a black number on a tape measure mean?

The black numbers are usually positioned above the other numerals that denote measurement. Those black numbers are actually somewhat similar to the diamonds in that they note spacing.

What is the purpose of a hook?

The hook has two intended purposes. First, you can use the hook to grab hold of edges. Latch the hook properly and you can pull out the tape measure using only one hand. The odd shape of the hook is what makes it compatible with a variety of surfaces. The other use of the hook is to grab on to nails .

What is a tape measure?

The tape measure is probably one of the most frequently used tools in and around the home. Whether you’re making repairs or creating something in your workshop, a tape measure can prove very useful. It’s something that must be present in any toolbox. Still, do you consider yourself very familiar with your measuring tape?

Why is the blade of a tape measure curved?

The idea behind the curved design of the tape measure’s blade is to help users read the numbers. When the blade is extended out of the housing, it becomes more rigid. That will make it easier for users to read the measurements.

Where are the Roman numerals on a tape measure?

Some Roman numerals may also be present on your tape measure. You can usually find the Roman numerals contained within shapes like circles or rectangles.

Do black diamonds help with stud placement?

It’s important to note that the black diamonds will help if your home was built using the standard stud placement pattern. Your tape measure is more than useful enough if you just it purely for measuring. However, you can still get more out of it if you’re aware of what its many markings mean.

What are the black diamonds on a tape measure?

Some tape measures come with small black triangles instead. Most know that they are a visual cue that is designed to make the process faster. Joists are used to start the framing and there are 5 additional joists and open bays in each panel of subflooring.

What is a joist tape measure?

The tape measures also come with markings that are supposed to help you when it comes time to space your wall studs.

Do you need a tape measure for framing?

Without the small black diamonds, the work process does not go as quickly. Correct spacing is not nearly as easy to come by when you are trying to work without a tape measure. Don’t ever make the mistake of taking on a project without one. You will be thanking us later!

How to tell where studs are on a tape measure?

That’s why there are red numbers highlighted every 16 inches. If you use the tape measure, you can note exactly where the studs are by using the red numbers and marking the studs using a pencil. Here’s where the black diamonds come in: They represent the middle of the studs. Starting at the 19.2-inch mark, the black diamond helps you find ...

How far away is the next black diamond?

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.

What is the most accurate tape measure?

For instance, on some (especially in the UK), there are Roman numerals on them. This tells the user how accurate the tape measure is: I is the most accurate, and III is the third-most accurate.

Do you see diamonds on measuring tape?

If you look closely at your measuring tape, you’ll see black diamonds every so often. Whether you’ve always wondered what they were or never noticed them before, we’re here to enlighten.

Can you find studs with diamonds?

So, put away your stud finder, because you already found your studs. By using the black diamonds, you can find studs and put up pictures of studs (like me) all over your house.

Where is the diamond on a measuring tape?

All you need to know about the black diamond on a measuring tape is that it’s for centering your measurements. It can be found at the bottom of your measure tape. This mark functions as an anchor for measurements made with other tools in order to keep them accurate. Understanding this will help you use your measuring tapes more efficiently.

How long is a tape measure?

A common tape measure is usually between 15 and 50 feet long. It’s good for measuring small objects like boxes and drawers. Longer tapes come with a 100-feet length and more. They are ideal for measuring curtains and bulky furniture. Such measuring tools typically come with metal blades.

How to Use a Measuring Tape?

To use a tape measure, pull the tape out of the housing. Apply a metal hook at the beginning to the edge of the object you want to measure. Make sure the metal hook is tight and close to the measuring tape’s end. Stretch the blade out along the object. Check where the blade meets the opposite end of the object. The nearest mark on the blade is your result. Once you’re done, unhook the metal end and get the blade back in the housing. You better unhook the blade slowly to avoid pinching your hand.

How to measure length of feet?

If you’re using a measuring tape that measures in centimeters, then lining up one diamond next to “0”. This will measure how long their feet are. While the other one goes all the way across their body. Until it reaches another number on its own side of the measuring tape. For example, if someone is 170 cm tall, line both diamonds up against “70”. So they form an L shape with each measuring seventy centimeters. Or around twenty-seven inches total length for this person’s height.

How to measure how tall someone is?

For example, if you want to measure how tall someone is, line the first diamond up against their toes. Then read off the number where the second diamond lines up with their body height. If they are five feet six inches tall for example, both diamonds would rest neatly next to “60”. Because this person’s height was six inches away from the measuring tape’s “0” starting point. One foot equals 12 inches.

Is a measuring tape the same as a measuring tape?

Generally, a tape measure and a measuring tape refer to the same object. However, you just call them differently depending on where they’re used. Some people refer to the measuring tape as soft flexible tape. It’s commonly used to take body measurements. And the tape measure goes for a tool with a housing and a metal blade. If compare measuring tape vs tape measure, the last one is typically longer.

What do the circled numbers on the left of a tape measure mean?

The circled numbers on the left, shown in the picture below, represent the total length of the tape measure. The manufacturers print the length on the tape as it is required by the law.

What do the numbers on the bottom of a tape measure?

We start off with the obvious details: the larger numbers at the top represent inches, while the smaller numbers on the bottom of the tape indicate centimeters.

Why didn't the metric adoption happen?

NEEDLESS to say, it didn’t happen because those responsible for the metric adoption were incompetent AND the average American was “accommodated” and totally unhappy in throwing their measuring tapes away along with all their fantastic fractions calculation skills…

How many spaces are there in the black diamond?

The black diamonds divide 96″ (8 feet into 5 equal spaces. Nothing more, nothing less. Robert GillilandSeptember 21, 2019Reply. When I started work in 1968 here in Queensland, Australia as a cadet Engineering Surveyor we measured everything in feet and decimals of a foot.

Why are diamonds placed in construction?

This accuracy would be difficult to achieve without these marks because of the decimal point. Hence, the diamonds are placed to end the hassle altogether . While the presence of these diamonds may seem trivial to the average Joe; it is vital for the construction workers as most of the American construction materials come in lengths of eight feet.

Is the speedometer adjustable?

If you only see numbers printed, and there is only a single set, and there are no calibration indicators, that is, MPH or KPH, actually printed on the dial, then your speedometer, with your odometer, is adjustable.

Do measuring tapes have numbers?

While every person knows how to use a measuring tape, almost none of us have any idea of the small mark ings and numerals that are subtly placed in between the numbers and dashes. Today, we are going to give a full low down on all the nitty-gritty of a measuring tape so that you work as a professional next time.

What does the black diamond mean?

The black diamond is meant to signify the center area between studs in a home or building. The symbol will always be set at the 19.2-inch mark, but to best use it to its advantage, you must first take the time to understand the “8-foot rule.”. On Hintz’s website, he writes,

How many supports are there in a 8 foot tape measure?

Many tape measures add red numbers (or some other graphical standout) every 16-inches, a very common spacing for studs in house framing. This spacing allows for six supports in each 8-foot length.

Can you use measuring tape to locate studs?

Pretty cool, huh? Basically, if you know that your walls were built following this standard stud placement formula, then, instead of breaking out that cumbersome stud detector, you should be able to just use your measuring tape to locate them.

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