Trampoline Park Landing Zones: The Space You Cannot Sell
A 40 ft by 40 ft dodgeball court covers 1,600 sq ft (148.6 m²). Add a 5 ft landing margin on all four sides and the same court covers 2,500 sq ft (232.3 m²). The extra 900 sq ft (83.6 m²) carries no ticket, no party package and no vending machine. It is 56% more floor for the same number of players.
That margin is the landing zone with no price attached, and it is where a trampoline park layout is decided. The decision is not made in the equipment catalog, which arrives with fixed bed sizes, and not in the theming, which can be re-cut late in the schedule. It is made in the distance a body needs to stop.
Most projects reverse the order. The bed count is fixed first, the plan is drawn around it, and the landing margins are fitted into whatever area is left. The drawing passes review. Then the leftover margin turns out to be the shortest route between reception and the party rooms, and design gives way to queue management.
The evidence is narrower than a padding brochure suggests. A study of 13,256 injuries across 18 parks in Australia and the Middle East, published in Pediatrics in 2024, measured 1.14 injuries per 1,000 jumper hours. The rate was 2.11 at high-performance zones and 1.91 at inflatable bag or foam pit zones. A separate Australian study of 48 children hospitalized after trampoline park injuries, published in the Journal of Paediatrics and Child Health in 2025, found that 72.3% were hurt in a fall on the trampoline.
So the margin does not prevent the most common serious injury. A fall onto the bed happens inside the court, and no amount of clear floor beside the court changes that. What the margin changes is the second event, the one that follows lost control. That is a smaller claim than the one usually made for padding, and it is the claim the data supports.
1. The Landing Margin Is Settled Before the Equipment List
Five decisions run in a fixed order. Each one removes options from the next, which is why the order matters more than the speed at which it is executed.
| Decision | What it fixes | What it closes off if taken late |
|---|---|---|
| Worst-case fall height in each zone | The surface class and its depth | Adding a taller element later without re-checking that surface |
| Direction a jumper leaves each element | Where the margin has to be widest | Routing circulation behind that element |
| Stopping distance on the chosen surface | The width of the margin | Recovering that area for beds at a later stage |
| What the margin touches | Barrier, net, or nothing at all | Using the margin for queue or storage space |
| Bed count on the remaining floor | Revenue capacity | Promising party capacity the floor cannot hold |
Run the list backwards and every decision becomes a compromise. Specify beds first and the margin becomes residual space, which the next trade on the schedule will claim. Route the circulation first and you may find that the only clear path to the party rooms runs along the wall of the dodgeball court, which is the one place where a jumper arrives at full horizontal speed.
The geometric cost is easy to underestimate because it scales with perimeter, not with area. A 5 ft margin around a 40 ft square adds 900 sq ft, or 56% of the court. The same 5 ft around a 20 ft square element adds 500 sq ft on a base of 400 sq ft, which is more than the element itself.
That is why a small trampoline park never reproduces the zone mix of a large one. The margin is a fixed width; the element it surrounds is not. Small elements are dominated by their own margins, and the ratio worsens as the venue gets smaller. A layout copied from a 22,000 sq ft (2,044 m²) reference plan does not divide cleanly into 8,000 sq ft (743 m²), and the part that fails to divide is usually the clearance.
Where these numbers come from: arithmetic on a stated example, not a measurement of any park. A 40 ft square is used because the figures divide cleanly, and the 5 ft margin illustrates the method rather than a recommended distance.
The reference layout we publish for a 22,000 sq ft trampoline park shows the same effect at building scale: the zones that look small on the drawing are the ones whose clearances eat the plan.
2. Four Landing Conditions, Four Different Problems
Landing conditions are not interchangeable. The body arrives differently at each one, so the variable that sets the distance changes with it. A margin sized for one condition is not automatically right for the next.
2.1 Court edge and angled wall
A jumper who leaves a bed at speed and reaches the court edge is still traveling horizontally. An angled wall redirects that travel rather than absorbing it, so the clear floor beyond the wall still has a job. The check at design stage is whether the padding is being treated as the control and the floor beyond it as spare.
2.2 Airbag and foam pit transitions
These zones carry the second-highest published injury rate in the Pediatrics dataset: 1.91 per 1,000 jumper hours against 1.14 across all zones. The figure combines jumps at inflatable bags and foam pits, and the study does not split the two, so it cannot be used to rank one surface above the other.
The part of the zone that deserves the closest look is the edge where the floor changes level. It is the one place in the park where a moving body meets a step, and it is the detail most often drawn as a line on a section rather than specified. Our breakdown of injury rates by park zone sets out the rest of the published figures.
2.3 Slide exits
A slide sets the run-out for you. Exit speed follows from the slide geometry, not from anything the child does, so the run-out has to be clear before the first visitor arrives. The CPSC Public Playground Safety Handbook, which sets guidance for public playground equipment in the United States and not trampoline parks, states the principle directly: slide exits belong in an uncongested area. The principle travels even though the document does not.
2.4 Climbing and ninja dismounts
A controlled dismount from height still ends in a landing, and the landing surface is usually a mat that moves under repeated use. Note the scope boundary: ISO 23659 covers trampoline parks and expressly excludes non-trampoline activities such as artificial climbing, parkour and obstacle courses. A climbing element needs the documents that govern climbing structures, and a trampoline certificate will not cover it.
| Condition | What the body is doing | What sets the distance | First thing to inspect |
|---|---|---|---|
| Court edge or angled wall | Moving horizontally, still in control | Horizontal speed and the wall angle | Padding on the wall and the floor behind it |
| Airbag or foam pit | Dropping, then climbing out | Entry height and the level change at the edge | The edge detail and the exit step |
| Slide exit | Accelerating under gravity | Slide geometry | Whether the run-out meets a walkway |
| Climbing or ninja dismount | Lowering under control | Height of the last hold and the mat below | Mat displacement and the mat-to-frame gap |
3. The Physics You Can Design Against
Two questions get confused in design meetings. How hard the landing is belongs to the surface. How far the body travels belongs to the margin. They use different numbers, they are bought from different suppliers, and one cannot compensate for the other.
For the margin, the relationship is short. Stopping distance equals the square of horizontal speed divided by twice the deceleration. Speed enters squared, so a modest change in exit speed produces a large change in the floor you have to leave clear.
| Horizontal speed at exit | Stopping distance at 0.5 g | Stopping distance at 1.0 g |
|---|---|---|
| 2 m/s (6.6 ft/s) | 0.41 m (1.3 ft) | 0.20 m (0.7 ft) |
| 3 m/s (9.8 ft/s) | 0.92 m (3.0 ft) | 0.46 m (1.5 ft) |
| 4 m/s (13.1 ft/s) | 1.63 m (5.3 ft) | 0.82 m (2.7 ft) |
| 5 m/s (16.4 ft/s) | 2.55 m (8.4 ft) | 1.27 m (4.2 ft) |
| 6 m/s (19.7 ft/s) | 3.67 m (12.0 ft) | 1.84 m (6.0 ft) |
Read the table as a budget, not as a rule. Doubling the deceleration halves the distance, which makes the surface a real-estate decision: at 6 m/s, a margin of 12 ft on the softer surface becomes 6 ft on the harder one. The reverse also holds. Raising exit speed by half, from 4 m/s to 6 m/s, takes the distance from 5.3 ft to 12.0 ft, which is more than double for half again the speed.
These are our calculations, and the assumptions are worth stating: flat travel, constant deceleration, no rotation, no second contact. A real fall rotates, catches a limb and often ends against something solid. The table tells you which way the number moves when you change a variable. It does not tell you the clear distance your park needs, and we would not present it as one.
That is also why a standard cannot hand you the figure. A standard sets a floor for conformity across every operator who buys it. Your traffic, your element heights and the condition of your surface are not in it. What the standard fixes is the hardware; what you are fitting is the trampoline court and its surroundings, and the fit is a local decision.
4. What the Standards Settle, and What They Hand Back
Three documents matter for this decision, and they do not overlap the way a supplier summary implies.
ASTM F2970-25 covers the design, manufacture, installation, operation, maintenance, inspection and major modification of commercial trampoline courts. It applies to courts inside trampoline parks and family entertainment centers. It expressly applies to courts that mount or dismount onto an inflatable impact attenuation system, which is the airbag case. It expressly does not apply to consumer trampolines, to inflatable amusement devices covered by another practice, or to standalone units whose total bed area is under 37,000 sq in (238,710 cm²) and which use a harness or small-mesh chambers to control descent. It carries sections on major modification, on certifications and on children zones.
The document is candid about its own limits. It states that it does not purport to address all the hazards associated with trampoline courts, and that its existence alone will not prevent injuries. Read that as an operator: conformity is the floor you stand on, not the work itself.
ISO 23659:2022 covers safety requirements for the design, construction, inspection and maintenance of trampoline parks, plus minimum operational requirements. It expressly includes landing areas such as airbags and foam pits. It expressly excludes general building regulations, fire regulations, planning regulations and non-trampoline activities such as artificial climbing, parkour and obstacle courses. The 2022 edition was confirmed in 2024 and runs to 68 pages.
ASTM F1918-21 covers soft contained play equipment, for users from the 5th percentile 2-year-old to the 95th percentile 12-year-old. Its contents include sections on access and egress and on areas outside equipment, which is exactly where a soft-play landing area sits. If your project is a soft play box with a trampoline beside it, two documents are in play and neither one covers the other’s floor.
What none of them settles is local. Traffic density is yours. Adjacency is yours, and it is the one that fails most often. Enforcement is yours, and a rule that is printed on a sign and not applied at 2 pm on a Saturday is not a control.
One working rule for procurement: ask for the scope of the test report, not the logo on the brochure. A report against one system is not a report against another, and the three systems described here are separate. Our safety standards page sets out what we document; the report is what answers the question for your jurisdiction.
5. Five Layouts That Pass Review and Fail in Operation
None of these is a code violation. That is why each one survives the drawing stage and reaches the operating floor.
1. The margin is the shortest path. Reception sits at the front and the party rooms at the back, and the clear floor beside the dodgeball court is the straight line between them. On a drawing this reads as circulation. In operation it is a walkway through a landing area, used by adults who are not wearing grip socks.
2. The margin becomes the queue. A queue needs somewhere to stand, and the clear floor looks free. First a painted line appears, then a rope, then a staff member. The margin is now occupied by the group least able to move out of the way quickly.
3. The margin ends at a column. A structural column is where the grid puts it, and a margin that terminates at one has a hard stop in the middle of its length. The column gets padded. The problem is the corner behind it, which nobody can see.
4. The slide exit opens onto a walkway. The exit works when the park is empty. At capacity, the child arriving at the bottom meets a stream of people crossing to the café, and the run-out is now shared with a route.
5. The step sits at the busiest point. Bag and pit zones need an exit, and the exit gets placed where the plan has room rather than where traffic is lowest. A level change in a busy lane is a design choice that reads like a detail.
The cost of each is deferred, which is why the decision keeps getting made. A retrofit that closes a bay removes that bay’s revenue for the duration and leaves the rent on the whole floor running, because rent does not pause for a drawing revision. A supervision post added to cover a corner that should not have existed is 4,380 paid hours a year at 12 hours a day, before training, uniform or turnover. Both figures are easy to test against your own pro forma, and neither appears in the design fee.
6. Airbag, Foam or Mat: The Choice Changes the Margin
There are three surfaces, three maintenance regimes, and one figure that cannot settle the argument. The 1.91 injuries per 1,000 jumper hours reported for inflatable bags and foam pits is a combined figure; the study does not separate the two. Anyone quoting it to show that one surface is safer than the other is quoting past the evidence.
What does differ is what happens to the surface after a few hundred landings. Foam migrates and compacts, so the depth a child lands in on Friday is not the depth on Sunday. An airbag depends on its inflation state, which is a daily reading rather than a one-time installation. A mat is the simplest to inspect and the least forgiving once it is worn.
The decision rule that survives operations is not about landing performance. Choose the surface whose daily check you can actually staff for 300 days a year, then size the margin for the speed your elements produce. A surface that is right on opening day and wrong by the first school holiday is not a design decision, it is a deferred cost.
Material questions belong with the surface supplier, and structural questions belong with your engineer. Our materials and quality page sets out what we test and what we ask suppliers to document, and the accessories range covers the pads, nets and landing surfaces that sit around the court rather than inside it.
7. What to Measure on the Day You Take Handover
There are six checks, and all of them can be completed with a tape measure, a camera and an hour of the installer’s time.
1. Measure in the direction of exit. Take the clear distance from the furthest bed edge to the first obstruction, along the line a body actually travels. Do not measure the diagonal because it is easier to reach. Write the number on the drawing and keep the drawing.
2. Check the net-to-pad junction. Look at every seam at the base of the wall, and at the gap where the net meets the padding. A gap at the base is the classic handover defect, and it is invisible from standing height.
3. Stand at each attendant post. Look at the far corner of the margin from the position a staff member will actually occupy. If you cannot see it, the post does not cover it, whatever the staffing plan says.
4. Give the one-jumper rule a physical cue. A sign is read once. A marked bed edge, a colored mat or a barrier is read every session.
5. Put the surface check on the daily sheet. Foam redistribution, airbag inflation and mat seams, each with a name against it. A check without a name is a wish.
6. Record everything with a date. If you later change a surface, F2970 treats major modification as a defined event, so ask whether the change triggers re-inspection before you sign the purchase order rather than after. The same discipline applies at the handover stage of the build.
The design file and the as-built should match. When they do not, the as-built is the park you own.
8. The Decision Table, and What We Do Not Know
The table below is the article compressed into conditions. Use it before design freeze, because after design freeze every answer becomes a change order.
| If this is true | Choose this | Because |
|---|---|---|
| Exit speed at an element can exceed 4 m/s | Widen the margin before you choose the surface | Distance grows with the square of speed, and no surface gives the floor back |
| Floor area is fixed and the pro forma already counts the beds | Cut beds, not margin | The margin is the cheapest part to keep and the most expensive to add |
| The margin touches a circulation route | A barrier or a different route | Clear floor does not stop a walking adult, and paint is not a barrier |
| You cannot staff a daily surface check | The surface with the simpler check | Maintenance is the failure mode, not installation |
| The element is climbing, parkour or an obstacle course | The documents for that activity | ISO 23659 excludes them, and a trampoline certificate does not transfer |
| The project is a mall retrofit with a fixed slab and a fixed ceiling | Resolve structure and clear height before design freeze | A margin you cannot build is a number on a drawing |
What we do not know, stated plainly. There is no public dataset that links margin dimensions to injury rates at trampoline parks, so nobody can tell you the width at which the rate falls. There is no published count of how many parks use their margin as queue space, although the failure mode is common enough to have a recognizable shape. Standards differ by edition and by jurisdiction, and the version that governs a neighboring project may not govern yours. The table in section 3 is arithmetic with stated assumptions, not a measurement.
The retrofit case is where the order hurts most. Our analysis of a 22,000 sq ft (2,044 m²) park fitted into a former gym floor ran into the same sequence: structure and clear height first, equipment second, and the landing margins taken from what the slab and the ceiling allowed.
What we will not do is give you a universal ratio. A figure that fits a 2,000 m² venue with a high-performance lane will not fit a 600 m² box built around a toddler zone, and presenting one as though it did would be the least useful thing in this article.
If you are at the stage where the floor plan is still open, the margin is one of the few things you can still get right at no extra cost. That conversation is worth having before the equipment list is signed.
FAQ
How much space should a trampoline park landing zone take?
There is no single ratio, and any supplier who quotes one is skipping a step. The width follows from three things: the fastest exit your elements produce, the deceleration of the surface you choose, and what the margin touches. The arithmetic is in section 3, where distance equals speed squared divided by twice the deceleration. A margin sized for a 4 m/s exit will not cover a 6 m/s exit, which is why high-performance lanes and toddler zones cannot share a clearance figure.
Does ASTM F2970 apply to a small trampoline park?
Usually yes, with defined exceptions. F2970-25 applies to commercial trampoline courts in trampoline parks and family entertainment centers. It does not apply to standalone institutional units with a total bed area under 37,000 sq in (238,710 cm²) that use a harness or small-mesh chambers to control descent, and it does not apply to consumer trampolines. Ask your inspector which edition governs your project and which scope statement applies, because both change over time.
Is an airbag safer than a foam pit?
The published figures do not answer that. The 1.91 injuries per 1,000 jumper hours reported in the 2024 Pediatrics study is a combined rate for jumps at inflatable bags and foam pits, with no split between the two surfaces. The surfaces differ in maintenance load, inspection routine and what happens after a few hundred landings, and those differences are documented. The relative injury rate is not.
Can I add an airbag after the park opens?
Often you can, and it may be a defined major modification under ASTM F2970, which means re-inspection and updated documentation rather than a delivery and an invoice. F2970 also applies to courts that mount or dismount onto an inflatable impact attenuation system, so the interface between court and bag is inside the scope. Decide the surface before handover if the budget allows it; retrofitting a landing surface disturbs the court around it.
What is the most common landing zone mistake?
Using the clear floor for something else. It becomes the route to the party rooms, the queue for the next session, or the place where a spare bench ends up. The margin is the only part of the floor with no revenue attached, which makes it the first part to be reassigned when operations need space, and the reassignment is rarely reversed.
Sources
- ASTM International, “Standard Practice for Design, Manufacture, Installation, Operation, Maintenance, Inspection and Major Modification of Trampoline Courts”, F2970-25, 2025. astm.org/f2970-25.html
- ASTM International, F2970-22, the previous edition of the same practice, superseded in 2026. astm.org/f2970-22.html
- International Organization for Standardization, “ISO 23659:2022 Sports and recreational facilities, Trampoline parks, Safety requirements”, published November 2022, confirmed 2024. iso.org/standard/76556.html
- ASTM International, “Standard Safety Performance Specification for Soft Contained Play Equipment”, F1918-21, 2021. astm.org/f1918-21.html
- Teague WJ, Dipnall JF, Palmer CS, Beck B. “Trampoline Park Injury Trends.” Pediatrics, 2024;153(1):e2023061659. publications.aap.org
- Tsoi KY, Sharwood LN, Eslick GD, Nunez C, Morris A, Williams N, Erskine C, Adams S. “Evaluating Paediatric Injury Hospitalisations From Indoor Trampoline Parks Across Australia: A Multi-Centre Study.” Journal of Paediatrics and Child Health, 2025;61(3):457-464. opus.lib.uts.edu.au
- U.S. Consumer Product Safety Commission, “Public Playground Safety Handbook”, publication 325. cpsc.gov