How To Measure A Trampoline – The Ultimate Guide



Trampolines depend on tight fits and closely knit parts; that means getting your measurements right is important.

Fortunately, most trampolines follow standard sizings which are compatible across brands, and across borders. That means replacing parts doesn’t need to be a hassle: so long as you know what you’re looking for.

This post will tell you everything you need to know about how to measure your trampoline; for replacing parts, finding the right sized trampoline for your yard space, or for fitting additional equipment like safety padding and nets.

Remember: A trampoline mat with too much slack is as useful as a wet towel, and stretching your springs to fit a mat that’s too small can be dangerous or outright impossible.

Trampoline Sizes: How to measure

Trampoline sizes are taken from frame to frame: not from the bouncing material. These are what are typically listed when you are looking to buy a new trampoline, and they are what most people refer to as the actual size of your trampoline. Generally speaking, these sizes are standardized and are not completely random–you should pretty much know what to expect. Or, at least, you should be able to tell a poor measurement from an accurate one.

Here’s how to get the most accurate measurements for each sizing and design style.

Round Trampoline Measurements

  1. Take a measuring tape and extend it across your trampoline from one side to the other. Imagine it like a clock: take the first measurement from 12 to 6 o’clock. Be sure to start and finish at the edge of the frame; not the beginning of the springs or the trampoline mat.
  2. Try to make sure the measuring tape cuts as closely through the center of the trampoline as possible.
  3. Record this measurement, then begin again from a new starting point–this time measuring from 3 to 9 o’clock if we stick with our clock analogy. Again, try to ensure that the measuring tape is going through the center of the trampoline, and is covering the entire length from frame to frame.
  4. Taking these two measurements, add them together, then divide by two. This will give you the average diameter of your round trampoline.

Bottom Line

Most round trampolines should come in the 10-16 feet, each sizing being restricted to 2ft increments (i.e. 10 feet, 12 feet, 14 feet & 16 feet). If you are not getting a measurement that meets one of these lengths, perhaps try measuring again. Also note: if your first and second measurements differ greatly (e.g. 9.5 feet the first time and 10.6 feet the second time) then you should repeat the measurement process.

Rectangular sizings

Rectangular trampolines are also measured from frame to frame.

  1. This means beginning your measurement from the outer edge of one side frame and taking it across to the opposite outer edge. Again, do not measure only the mat or the springs. Ensure that your measurement include the entirety of the frame.
  2. Repeat this for the length (or width, depending on which you took first) and you will have your measurements.
  3. For example, 8 feet (width) x 14 feet (length) or 10 feet (width) x 17 feet (length).

It isn’t so necessary to repeat the measurement process with rectangular trampoline since it is easier to measure from frame to frame accurately.

If you are measuring your backyard or yard space so that you can plan for the size of your trampoline order, then be sure to leave some wiggle room. First of all, setting up the trampoline can take up a bit more space than the size of the trampoline itself. Second of all, it isn’t a good idea to have your trampoline enclosed or closely surrounded by other objects like walls, trees, stones or other hazards. For that reason, you’ll want to add a few feet on either side of your desired trampoline measurements, so that you can comfortably install it in your yard.

How to measure trampoline mats

Finding a tear in your trampoline mat can be a serious downer, but it doesn’t mean you need a new trampoline. Replacing trampoline mats is more common than you’d think, and it’s relatively simple and affordable to do.

Measuring your trampoline mat accurately is important for finding the right replacement. There are three things you’ll need to know for how to measure your trampoline for replacement mats:

  1. Your total frame size (as we found earlier for your trampoline size).
  2. Your total number of v-rings; and
  3. Your trampoline spring size.

Count v-rings

V-rings are simply the rings which allow you to attach springs to your trampoline mat. If you already have an old trampoline mat you’re looking to replace, simply count the number of v-rings and use this figure. When counting, it can be easy to get lost or lose track. Simple fix: mark your starting point when you begin counting with a piece of tape or a black marker.

If you don’t already have a trampoline mat, count the number of holes on the top rails of your trampoline. These holes are where the springs will attach your frame to the trampoline mat and they should line up precisely with however many v-rings your mat will have.

Here is another great resource on the measurement process.

Measuring trampoline spring size

When you measure your trampoline spring size, make sure they are not attached to the trampoline. They should be free from the frame, and not extended or under any tension. Then, be sure to measure from hook-end to hook-end–that will give you the entire length of the spring. By knowing the spring size of your trampoline, you can subtract this length from the total length of your trampoline. You can compare this figure with the actual length of your trampoline mat if you have one, to see if they line up correctly. Many replacement mat services will not ask you to actually measure the trampoline mat itself! Instead, they are only interested in the total trampoline size, the number of v-rings and the spring size. This is enough information for them to give you an accurate replacement mat.

The Takeaway

Measure your trampoline is all about accuracy. Sticking with the big brands will typically make things easier for you, since they keep with standard sizings and make it easier to replace separate parts (you can check them out here). That being said, with a measuring tape and some basic knowledge about what the manufacturers are looking for, anyone is qualified to measure their trampoline and order the parts themselves.

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