How to Use a Tape Measure

If you’re starting on some DIY projects at home, you’ll probably need to use a tape measure. This simple tool is, in fact, the most important equipment for accurate measurements. Using a tape measure is straightforward once you’ve understood the basics and how to read the metrics. Don’t worry if it’s your first time using one! This guide will walk you through how to use a tape measure properly. 

Types of Tape Measures 

Think of a tape measure as a ruler with more flexibility. It’s much longer and stronger than a normal ruler for your work and paperwork. A UK tape measure normally has different metric systems, including centimetres and inches, ranging from 3 to 50 metres. No matter what type your tape measure comes in, it’ll have clear markings in both metric and imperial units to provide accurate measurements when you do the job. 

Steel vs Fibreglass Tape Measure

Steel tape measures are the most common for every DIY task or home improvement project. They are strong and rigid, suitable for long-distance measurements. Be aware when using this tool because it can lead to electrical hazards due to the material. 

You’ll also come across fibreglass tape measures, which are often lighter and easier to handle than a steel tape measure. They are also less rigid and safer when used around electricity. Fibreglass tape measures are useful for tailoring or outdoor measuring since they can cope well with different weather conditions. 

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Closed Case vs Open Reel Tape Measure

Tape measures can come in a closed case or an open reel case. Closed case measurement tools are stored inside a solid plastic or metal housing. It’s more common in households and among DIYers due to shorter lengths and compactness.  

Open reel tape measures have the blade wound onto a frame or reel with a manual winding handle. They are often longer, with up to 50 meters.  For this reason, you might see it in construction and landscaping projects, where large distances need to be measured.  

How to Choose a Suitable Tape Measure 

Choosing the right tape measure depends on the preferred measurement system and the size of the area you need to measure. Make sure you invest money in the right tool by looking at these criteria: 

• Size and Length 
• Metric units or imperial units, including how precise you want the measurement to be 
• Material of steel or fibreglass 
• Case design of closed cases or open reels  
• Extra features like hook type and locking mechanism. 

Parts of a Tape Measure 

A closed case tape measure contains a few basic parts that you need to know. 

• Blade: The long, flat strip that comes out from the tape measure with all the markings to help you measure the distance. The blade is designed to be slightly curved so it can stay stable when extended.  
• Hook: The small metal piece attached to the blade. It is made to help you secure the blade to objects. The hook can move slightly to give you precise measurements. 
• Lock: The thumb lock on the body of the case is designed to stop the tape from moving. This switch is simple yet so useful to keep the blade in the exact position you need. 
• Belt Clip: This small belt clip lets you attach the tape measure to your belt or your pocket for convenience. 
• Case: When not in use, the blade sits entirely inside the case for protection. You might notice that one side of the case is made flat. The case length refers to this side of the case, which is used when you need to take interior measurements.  

How to Use a Tape Measure Correctly 

Tape measures are versatile and can be used in different ways to measure length, height, weight, or even curves. Below is the common way to use a UK tape measure correctly and get the precise results that you need. 

Step 1: Extend the Tape 

Using the tape measure is straightforward. As simple as it is, the first step is to extend the tape to calculate the distance. Depending on the surface, there are different steps you need to take. 

Exterior Measurements  

If you need an outside measurement, hook the tape measure end over a secure point or the edge of the object. Then pull the tape towards you until the desired point. Keep reading to understand how to read the tape measure. 

Interior Measurements 

If you are measuring inside an object or don’t have anything to secure the hook, the process is slightly different. Start by placing the base of the tape measure in one inside corner and extending the tape across the space until you reach the desired point. Mark this point slightly with a pencil.  

Add the case length printed on the back of the tape measure to your reading. The total is the full inside distance that you need. 

Step 2: Lock the Blade for Long Measurements 

Most tape measures come with a blade block to keep the tape stable while you read the measurements in the next step. Simply slide down the lock to prevent the tape from moving or distracting. Mark the point you need with a pencil to later apply it to other objects, like timber or tiles that you need to cut. 

Step 3: Read the Measurements 

To get the precise results, make sure you understand the markings on a tape measure. Some come with both imperial and metric units or only have one. Here is how to read a UK tape measure.

How to Read a Tape Measure in Cm

Using metric units means you are using the centimetre system for measuring. The longest and boldest lines represent centimetres (cm). Each centimetre mark often has a clear number printed below or right beside. 

Between the centimetre lines, you’ll see ten smaller lines, which represent millimetres. One millimetre is one tenth of a centimetre. 

• A small line = 1 mm. 
• After 4 one-millimetre lines, the 5mm line is slightly longer to show half a centimetre. 
• Along the tape, when you reach 100 centimetres, you’ll also see a clear mark of 1 metre written on the surface. 

To get the result, look at the largest numbered line before the mark. That’s the centimetre value. After that, count the millimetre lines until the point you need to measure. Add up the right number of millimetres for the results.  

How to Read a Tape Measure in Inches

If you need to use inches for measurements, make sure you have a tape measure with imperial markings. The most prominent, bold line represents 1 inch. Same as metric units, each inch is divided into smaller, evenly spaced fractions. Manufacturers often break 1 inch down to 16 parts, which are smaller and shorter lines. 

• 1/2 inch = halfway between two inch marks (half of an inch) 
• 1/4 inch = halfway between 0 and ½ (quarter of an inch) 
• 1/8 inch = halfway between 0 and ¼ (eight of an inch) 
• 1/16 inch = the smallest division on most tape measures (sixteenth of an inch) 

For the result, find the largest line with a number on it, which will be the inch. Next, identify the small lines between the inch marks to get the precise marking. Convert the number into measurements. 

Most of the time, you’ll see these fractions on the surface of the tape measure. However, misreading a sixteenth of an inch can make a difference. Remember to choose a tape measure with fractional read blades to make reading easier for you. 

Step 4: Retract the Tape Safely 

This step is sometimes overlooked as it seems easy and simple. However, you need to control and retract the tape slowly and correctly to avoid injury or damaging the blade. 

Once you release the blade block, keep your hand lightly on the tape or the hook to control the speed. Don’t allow it to snap back too fast, and make sure that the blade is not bent or twisted. Be aware of the sharp edge of a steel tape measure because it might lead to a cut.  

Step 5: Maintain Your Tape Measure 

To maintain your tape measure, you can clean it right away after use or when you retract the tape. Any dust and debris left on the tape can damage it in the long run if not cleaned properly. You could also apply oil to the blade slightly to avoid rust and ensure smooth extensions or retractions. Check for damage and store your tape measure in a dry place to maintain its quality. 

Tips for Accuracy and Safety when Using Tape Measures 

It’s important to follow these guidelines to achieve accurate measurement: 

• Keeping your tape straight, firm and flat with the hook secured to the edge of the object, and slightly stretching the tape when using it. 
• Clear all objects and obstacles in the way. 
• Mark the result using a pencil for precision. You can even double-check the measurements again to avoid mistakes when cutting materials later. 
• Keep your reading stable with the blade block for longer measurements. 
• Maintain your tape measure regularly and avoid bending it too much for correct reading. Any sign of a bent, cracked or twisted blade can affect accuracy. 
• You can wear safety glasses when working with tape measures, especially in a dusty environment 

Shop Your Tape Measure from Speedy! 

Once you’ve mastered how to use a tape measure safely, your DIY projects will become easier than ever. Choosing the suitable measurement tool is the starting point of a successful DIY project. 

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Speedy has high-quality and durable tape measures available to buy in different lengths. Our tape measures come in both metric and imperial measurements for your flexibility with compact and smart design. Upgrade your toolkit today with reliable tools & equipment from Speedy Hire!