Trampoline Sizes
Pick a trampoline size and the clear space you will leave to see the ground it needs, then type your yard size to check that it fits.
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How to use the trampoline sizes tool
- Open the “Trampoline size” control and choose a round size (6, 8, 10, 12, 13, 14 or 15 ft), an oval size (8 x 13 or 12 x 19 ft), or a square size (11 x 11 or 13 x 13 ft).
- Open “Clear space to leave on every side” and pick 3 ft, 5 ft, 6.6 ft or 10 ft. Each option is labeled with the source that gives it.
- Type your yard’s length into “Your space, length”. Add a unit of ft, in, m or cm.
- Type your yard’s width into “Your space, width”, using the same kind of unit.
- Read “Trampoline footprint” to see the ground the trampoline covers.
- Read “Space needed with the clear zone” to see the total area, including clear space on every side.
- Check “Does your space fit it?” to see whether the space needed fits your yard, in either direction.
- If the sources state one, read “Jumping surface the sources give”. Then read “Overhead clearance in the manuals” and keep those heights clear.
- Compare the “Clear space on every side by source” table and the “Sizes named in the sources” table to see how sources differ.
The four presets fill in the size and yard fields for common setups: 10 ft round in 20 x 20 ft, 12 ft round in 30 x 25 ft, 14 ft round in 30 x 30 ft, and 8 x 13 ft oval in 24 x 18 ft. If you leave both yard fields blank, the tool skips the fit check. A zero or a non-numeric value shows an error.
What trampoline size fits in my yard?
A trampoline fits your yard when the space it needs, including a clear zone on every side, is no larger than the yard in both directions. The tool checks this by comparing two numbers. The first is the trampoline’s frame size plus the clear space on each side. The second is your yard’s length and width. If both numbers fit, the result says so, and the check works either way round, so a long yard can take a trampoline turned sideways.
How is the trampoline footprint and space needed worked out?
The footprint is the ground the trampoline frame covers. For a round trampoline, the footprint is pi x (d/2)², where d is the diameter. For an oval or square, it is length x width. A 12 ft round, for example, has a footprint of about 113 ft².
The space needed adds clear space to both sides of each dimension. The rule is size plus 2 x clear space in each direction. With the default setup, a 12 ft round and 5 ft of clear space need 12 + 10 = 22 ft in each direction, which is 22 x 22 ft, or 484 ft². A 30 x 25 ft yard fits that zone.
Another example: an 8 x 13 ft oval with 3 ft clear needs 8 + 6 = 14 ft by 13 + 6 = 19 ft, which is 19 x 14 ft, or 266 ft². A 14 ft round with 10 ft clear needs 34 x 34 ft. A 21 x 30 ft yard does not hold a 22 x 22 ft zone, because 21 ft is less than 22 ft.
The jumping surface is often smaller than the frame. For spring-type sizes, the maker says the springs take off roughly 2 ft of jumping room, and the tool shows a note for these sizes. Figures stated by the sources include 132 ft² for the 13 ft Jumbo Round and 155 ft² for the 13 x 13 ft square. A retailer article gives about 86 to 93 ft² for a 12 ft spring trampoline and 122 to 130 ft² for 14 ft.
Sizes and clear-space figures vary by maker and by manual, so the numbers shown are typical sizes from the named sources, not a single standard.
Sources (checked 19 October 2026): springfreetrampoline.com · springfreetrampoline.com · springfreetrampoline.com · trampolines.com · pdf.lowes.com · pdf.lowes.com · images.thdstatic.com
Worked examples
| Input | Result |
|---|---|
| Round, 12 ft, 5 ft clear each side | 22 x 22 ft of space |
| Oval, 8 x 13 ft, 3 ft clear each side | 19 x 14 ft of space |
| Round, 14 ft, 10 ft clear each side | 34 x 34 ft of space |
Calculated by the tool above; open it with the same values to see each step.
Frequently asked questions
What trampoline sizes are available?
The sources name round sizes of 6, 8, 10, 12, 13, 14 and 15 ft, oval sizes of 8 x 13 and 12 x 19 ft, and square sizes of 11 x 11 and 13 x 13 ft. The maker’s pages name the 6 ft Mini, 8 ft Compact, 10 ft Medium and 13 ft Jumbo Round. The 12, 14 and 15 ft round sizes come from owner’s manuals.
How much clear space should I leave around a trampoline?
The sources differ. The maker’s round-trampoline page says about 5 ft, and its blog says 3 to 5 ft. Owner’s manual B asks for at least 6.6 ft, and manual C says 10 ft. Manual A says to keep a clear space on all sides but gives no figure. The tool shows each figure by source.
How much overhead clearance do I need?
Manuals A and C ask for at least 24 ft of overhead clearance from the ground. Manual B recommends at least 26 ft. Keep branches, wires and roof edges clear, and follow the manual for your trampoline.
Why do the clear-space numbers differ between sources?
Each source is written for a different trampoline, and the figures are not from one shared rule. The tool shows them side by side so you can see the range rather than one number.
Does a result from this tool mean my setup is safe?
No. The tool calculates the footprint and space needed from your inputs and compares them with your yard. It gives no safety rating, and it does not replace the manual for your trampoline.
Are my measurements sent anywhere?
No. The tool runs in your browser, and nothing you enter is uploaded.
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