How To Measure A Trampoline? Easy Guide [2023]

Trampolines are a great way to get some exercise and have fun outdoors, but it’s important to make sure you are properly measuring your trampoline mat before you start using it.

This will ensure that your trampoline is the right size for you and your family, and help minimize any potential safety hazards.

How to measure a trampoline? To determine the size of your trampoline, start by picturing it like a clock face and measure from one outer edge to its opposite. Collect two data points, 12 o’clock to 6 o’clock, then 3 o’clock to 9 o’clock, for an accurate reading in feet of your jumping pad’s diameter.

How To Measure a Trampoline? Step By Step

How to measure a trampoline - Guide


Unleash your inner geometry ninja and figure out the size of your trampoline with ease! All you’ll need is a ruler (or measuring tape, if that’s more convenient) to measure from one outer edge across the steel frame all the way to the opposite side.

Visualize it as a clock face, measure 12 ‘o’clock to 6 ‘o’clock and 3 o’clock towards 9, then average them together for an approximate diameter in feet which can be rounded off neatly up or down depending on how picky you want to get about fractions of inches.

The trampoline mat can be deceiving; don’t let its initial size fool you! Over time, it will stretch out and expand, becoming bigger than when you first set your eyes on it.


How to measure a trampoline - Guide

Don’t let v-rings leave you in a spin when counting them on your trampoline mat!

To make things easier, try marking off where you start to prevent any wasted time and head-scratching.

On most mats, the total number of v-rings can be conveniently divided by 12 for example, 72 or 96 though there are always some exceptions to keep an eye out for.

To get the exact size of your trampoline, we suggest counting twice or even three times. If you don’t have an old mat to measure against, use a simple trick, count the number of holes along its upper rail and that’s how many springs are needed!


How to measure a trampoline - Guide

Accurately measuring your trampoline springs is essential for replacing them with the correct length.

To get an accurate measurement, take three or more un-stretched springs and measure from hook end to hook end.

If any of these are already stretched too far apart, however, it can cause problems when you replace them, overmeasuring will result in a faulty bounce quality while undermeasuring may lead to premature material tearing.

Make sure each spring fits snugly together so that no piece of paper would fit between them!

You can also use a round mat calculator to calculate trampoline size.

Related: How to Measure a Trampoline Pad

Tools and Materials

Here we explore the tools and materials for measuring the trampoline:

Measuring Tape or Ruler:

  • Measuring tape: A flexible tape measure is ideal for measuring curved or uneven surfaces like the frame diameter and jumping surface of the trampoline.
  • Ruler: A straight ruler with clear markings is suitable for measuring straight edges and smaller trampolines.

Helper (optional):

  • Having a second person can be beneficial, especially for larger and heavier trampolines, to assist with holding the tape measure steady and ensuring accurate measurements.

Pen and paper (optional):

  • Use a pen or pencil and a notepad or paper to record the measurements as you take them. This helps in keeping track of the dimensions for future reference or maintenance.

Step ladder (if necessary):

  • For taller trampolines or areas that are difficult to reach, a step ladder can be handy to safely access the necessary points for measurement. Ensure the ladder is stable and positioned securely before use.

What’s the Purpose of Checking a Trampoline’s Measurements?

Before we talk about how to measure different parts of a trampoline, let’s quickly explain why measuring it is important. The big reason is to make sure you buy the correct replacement parts or add-ons for your trampoline, like the frame, mat, safety net, and springs, to keep it working well.

How Do You Measure the Mat of a Trampoline?

How to measure a trampoline - Guide

Here are the steps to measure a trampoline mat:

  1. Measure the frame from one side to the other.
  2. Count how many V-shaped rings are on the mat. These rings connect the springs to the mat.
  3. Measure the length of one spring from its hook to the other end.

Let’s say your frame is 10 feet, you have 55 V-rings, and your springs are 5.5 inches long. You’ll need a mat that’s 10 feet, has 55 V-rings, and fits 5.5-inch springs.

But, measuring the frame can vary for different trampoline shapes. Let’s look at how to measure a round trampoline mat.

To measure a round trampoline mat, measure across from one side to the other, starting from the outer metal edge. To double-check, measure from the center to the edge; these two measurements should be the same.

How Do You Measure the Frame of a Trampoline?

Measuring the trampoline frame is crucial to determine the right parts you need, even though the frame itself doesn’t often require replacement. It’s the first step because it affects other measurements, like the mat size.

To measure it, simply use a tape measure to go from one outer edge to the opposite edge of the frame, ensuring that all springs are attached, and the mat is correctly in place for an accurate measurement.

How to Determine the Size of Trampoline Poles?

If you need to replace trampoline poles, which are the ones supporting the safety enclosure, here’s how to do it: Start by removing the old pole since it’s usually not connected to the frame.

Pay attention to its shape (whether it’s straight, curved, round, square, or octagonal) and how it attaches to the trampoline.

Then, measure its length and width, and check if the attachment point is special in any way. These steps will help you find the correct type and size of trampoline pole you need.

How to Determine the Size of a Trampoline Enclosure (Safety Net)

Now, let’s talk about how to measure your trampoline for a safety enclosure, also known as a net. There are three steps to follow:

  • Identify the type of enclosure your trampoline has. Trampolines can have different types of enclosures like straight poles with caps, curved poles, arched poles, or top rings.
  • Measure your trampoline’s frame (this is really important!).
  • Count how many places on the enclosure where it connects to the trampoline (like arches or poles).

For example, if your trampoline has straight pole enclosures, is 12 feet wide, and has six connection points, you’d need to order a 12-foot net with six connection points.

How To Measure A Rectangular Trampoline?

How to measure a trampoline - Guide

First, start by taking the measurement of the diameter of your trampoline’s steel frame.

To do this, picture it as a clock face and measure from one outer edge to its opposite, from 12 o’clock to 6 o’clock, and then 3 o’clock to 9 o’clock.

Next, check the size of your old trampoline mat, and divide the total number of v-rings by 12 to determine the diameter in feet.

To measure your trampoline springs, start by taking three or more un-stretched springs and measuring from hook end to hook end.

If any of these are already stretched too far apart, it can cause problems when you replace them, so make sure they fit snugly together with no pieces of paper fitting between them.

Finally, use a simple trick to count the number of holes along your trampoline’s upper rail, and that’s how many springs you need!

With all these steps in mind, you can easily measure your rectangular trampoline and ensure that it’s in good condition for years of fun jumping!

How to Determine the Size of an Oval Trampoline?

When measuring an oval trampoline, similar to how you’d do it for a rectangular one, you’ll want to determine the lengths of both the shorter and longer sides.

  • Begin by measuring the shorter side at its broadest point.
  • Next, measure the longer side at its widest point as well.
  • Finally, add together the measurements from the shorter and longer sides at their widest points, and that’s how you determine the size of your oval trampoline.

Safety Precautions

Here are safety precautions:

  • Be cautious to avoid injury during measurements.
  • Clear the area of loose objects and debris.
  • Exercise care when measuring springs under tension.
  • Ensure the trampoline is on stable, level ground.
  • Avoid measuring in adverse weather conditions.
  • Use appropriate safety gear, such as non-slip shoes and stable ladders.
  • Keep children and pets away from the trampoline during measurement.
  • Follow the manufacturer’s instructions and guidelines.
  • If uncertain or concerned, seek professional assistance.

Related article: How to Measure Size of Trampoline


Q:1 Is a trampoline measured by its mat or by its frame?

The diameter of the metal frame determines its size, not just how much room there is to jump. To discover the size of your round trampoline, start by measuring from the outer metal edge to its opposite point, that’s where you’ll find the diameter.

Then simply average those figures and voila! You’ve got an approximate measurement for a great bounce every time.

Q:2 How To Measure Trampoline Springs?

The first step in measuring your trampoline springs is to take three or more un-stretched springs and measure from one hook end to the other. It is important to pay careful attention to how far apart the springs are stretched, as this can affect the quality of your bounce once they are replaced.

Q: 3 How To Measure trampoline diameter?

The diameter of a trampoline is measured by dividing the total number of v-rings on your old mat, by 12. So for example, if your mat has 72 v-rings, you would divide that number by 12 to get a measurement of 6 feet in diameter.

To measure your springs, start with three or more un-stretched springs and measure from hook end to hook end.


In conclusion, measuring your trampoline is a crucial step to ensure safety, proper maintenance, and compatibility with replacement parts or accessories.

Whether it’s determining the frame size, mat diameter, spring length, or even the size of safety enclosures for various trampoline shapes, following these measurement guidelines is essential.

Safety precautions play a vital role throughout the process to prevent accidents and ensure a secure trampoline experience.

By carefully measuring and adhering to manufacturer instructions, you can enjoy your trampoline to its fullest potential while minimizing potential hazards, providing countless hours of outdoor fun and exercise for you and your family.

After reading this detailed article, we hope you have a good understanding of How to measure a trampoline. If you have any questions, please don’t hesitate to ask in the comments!

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