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The Truth About Trampoline Sizes (It’s Not What You Think)

Wondering how much space you'll have to jump on a trampoline? Learn the truth about trampoline sizes and why it's an important factor to consider before purchasing. 

9 min read

We’re going to let you in on a little secret: The size of a trampoline is not always what it seems.  

The amount of jumping space on a trampoline is a crucial factor to consider before buying a trampoline, especially if you have growing kids that want a trampoline to last throughout their childhood.  

We’re going to use our years of expertise as a trampoline manufacturer to explain how the size of a trampoline differs from the amount of jumping space you have on a regular outdoor trampoline.  

We’re also going to provide an example of how two similarly sized trampolines contrast on the amount of jumping space available. 

After reading this, you will be well-equipped with the knowledge to make an informed decision on which size of trampoline you need for your family. 

The Truth About Trampoline Sizes  

So, what is the truth about trampoline sizes? 

Well, let’s back up and first go over how trampoline manufacturers measure and publicize their trampoline sizes currently.  

Trampolines are almost always measured frame-to-frame; that is the number you will see when you look for the dimensions of a trampoline. The graphic below, which is courtesy of JumpSport, gives you a visual of how frame-to-frame measurements look on a round trampoline: 

A visual demonstrating how to measure a round trampoline frame-to-frame 

That measurement is what manufacturers primarily use to state the size of their trampolines. But take a look at the graphic above and notice how the measurement extends to the white area around the mat.  

The white area around the mat is where the springs lie. On a safer trampoline, the enclosure net will usually go between the mat and springs, although sometimes the springs are located inside the mat (a huge red flag for safety!). 

Here’s what this traditional-style outdoor trampoline looks like, via The Krazy Coupon Lady:  

A child jumping on a traditional, spring-based, trampoline 

The problem with this measuring precedent is it over-emphasizes the amount of area you have to jump. You obviously cannot jump on the section of the trampoline where the springs lie, yet it is still a part of the total dimensions. 

Because the springs can take up to around 2 ft of jumping space, this a problem for consumers that are trying to get a trampoline with plenty of jumping space.  

Compounding this issue is that many manufacturers don’t even list the amount of jumping space available, leaving you to assume that you’re getting more jumping room than you have. This is where the misleading nature of trampoline sizes comes into play. 

So, here’s the truth: Trampolines are measured frame-to-frame and published as such without talking about the amount of jumping space (in most cases). The problem with this? It can mislead you into buying a trampoline that you thought had more jumping space. 

Now that you have this insider knowledge, let’s explain further how the size of a trampoline differs from the amount of jumping space: 

Trampoline Sizes vs. Jumping Space  

In the last section, we talked about how the frame-to-frame measurement of a trampoline is misleading in terms of the amount of space you have to jump.  

That doesn’t mean those frame-to-frame dimensions are worthless, though. On the contrary, measuring frame-to-frame gives you the total dimensions of the trampoline, which is essential to know so you can make sure it fits into your yard.  

The total size of the trampoline is also critical to know, and you should consider it when deciding which trampoline to purchase. You don’t want to buy a trampoline that doesn’t safely fit into your backyard.  

However, only using the frame-to-frame measurement as a basis for a purchasing decision is wrong in most cases: It overestimates how much jumping room you will have. And based on our internal analysis of other trampoline manufacturers, no other manufacturer of trampolines besides our Springfree models readily listed their jumping space.  

We surveyed how the trampoline size is displayed on the websites of 11 other trampoline brands and found that none of them had the amount of jumping space readily available to consumers. We define “readily available” as being clearly stated on their website and able to be discovered by the average consumer with a simple browse.   

Our Springfree Trampolines were the only ones to have the amount of jumping space listed. See below for an example (it’s listed under “Jumping Surface Area”):  

Springfree Jumbo Square specifications 

Springfree Trampoline vs. Jumpsport’s AlleyOOP Trampoline  

To demonstrate the difference between the size of a trampoline and the amount of jumping space, we’re going to compare two similarly priced, premium trampolines from different brands: Our Springfree Trampolines and JumpSport’s AlleyOOP Trampolines. 

We will use JumpSport’s AlleyOOP 10 ft x 17 ft Rectangle Trampoline ($2,999) and our Springfree 13 ft x 13 ft Jumbo Square Trampoline ($2,499) since they are around the same price range.  

This will not be a full comparison of the two trampolines: That would take its own separate article. We’re just comparing them on size and jumping space. Let’s get to it! 

Below are the size specifications and cost of each trampoline. We will summarize the results afterward:  

AlleyOOP Rectangle Trampoline Specifications 

JumpSport's 10 ft x 17 ft AlleyOOP Trampoline

Dimensions: 10 ft x 17 ft  

Jumping Space: Around 102 square ft. 

Cost: $2,999 

Cost Per Square Foot: Around $30 

Springfree Jumbo Square Trampoline Specifications  

Springfree Jumbo Square Trampoline  

Dimensions: 13 ft x 13 ft 

Jumping Space: 155 square ft. 

Cost: $2,799 

Cost Per Square Foot: Around $18 

Summary: How Do the Two Trampolines Compare on Size? 

As you can see, the Springfree Trampoline offers a larger amount of jumping space yet is less expensive than the AlleyOOP Trampoline.  

The AlleyOOP Trampoline has around the same amount of jumping space that our Springfree Large Oval Trampoline has (92 square ft, cost of $1,999).  

This is not to say that the Springfree Trampoline is better than the AlleyOOP Trampoline. JumpSport’s AlleyOOP Trampolines are quality trampolines that have been included in our previous “Best Trampolines to Buy” Lists. 

Who has the better trampoline is a subjective and personal decision and we’re comparing the two trampolines in only one category. There are many other things to consider when buying a trampoline, and some will be more important than the size of the trampoline. 

The point of this comparison was to show the discrepancy in size, jumping space and ultimately, pricing of two trampolines that are around the same price range.  

A Final Word on Trampoline Sizes  

We’ve gone over a lot of information, so let’s sum up the key points of this article: 

  • It has become standard across the trampoline industry to list the size of a trampoline as its frame-to-frame dimensions only.  

  • These dimensions, while important, are misleading in terms of the amount of jumping space you have---especially on traditional, spring trampolines

  • Manufacturers typically don’t make the amount of jumping space readily available, something that must change in order for you to make a fully informed decision on which size of trampoline you need. 

If having plenty of jumping space is an important quality to have in your ideal trampoline, take the time to find out that information. Contact the manufacturer of the trampoline you’re interested in and ask how much jumping room is available on the model you’re looking at. 

A good trampoline is not cheap, so make sure you evaluate your goals and don’t settle: A trampoline should be a staple of endless joy for your backyard and should never be a source of mass frustration! 

What Size Trampoline Is Right for You? 

Now that you know the truth behind trampoline sizes, which size should you go with? 

Remember, the size of the trampoline is multi-faceted: Take into account the total dimensions and jumping space, while also considering the individual weight limit of the trampoline. Considering all of these factors will lead you to the right-sized trampoline for your goals.  

If you would like to see a virtual demonstration of how a trampoline would look in your backyard, check out our free Augmented Reality (AR) Tool. 

With the Tool, you can follow three easy steps from your phone and place a trampoline, choosing from nine different sizes, into your backyard to see how it would look/fit at your house.  

Reach out to us if you need assistance accessing the AR Tool or have any other questions about getting the right trampoline for you. We have a team of professionally trained experts that are ready and willing to help answer your most pressing questions!   

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