Indoor Playground ASTM F1918Indoor playground injuries are not trampoline-park cases — ASTM F1918

Indoor Playground Injuries Are Not Trampoline-Park Cases

Why ASTM F1918 is usually the standard that actually applies

When a child is injured in a padded, enclosed play structure at a family entertainment center, mall play area, or indoor playground, the file often arrives labeled as an “amusement” case or a “trampoline park” case.

That label can send the investigation in the wrong direction.

Soft-contained play equipment — tube slides, climbing frames, ball pits, netted corridors, and multi-level padded structures — is its own category of equipment. It has its own ASTM standard: ASTM F1918, Standard Safety Performance Specification for Soft Contained Play Equipment.

It is not ASTM F2970 (trampoline courts). It is not ASTM F1487 (public playground equipment). And F1918’s own scope expressly excludes amusement rides.

For plaintiff and defense counsel, using the wrong standard is not a technical quibble. It can produce the wrong discovery, the wrong expert, and a standard-of-care opinion that does not match the equipment that actually injured the child.

What “soft-contained play” actually is

Soft-contained play equipment (often abbreviated SCPE) is the enclosed indoor play system most lawyers have walked past in a mall or birthday-party venue: padded platforms, plastic tunnels, slides, cargo nets, and ball pits, typically wrapped in netting or fabric so children play inside the structure rather than around it.

These facilities are marketed as indoor playgrounds, play cafés, or family entertainment centers. The marketing name does not determine the standard. The equipment does.

MIT Experts’ own operational background is in this environment. Peter Jay owned and operated indoor playgrounds built from soft-contained play equipment for nearly a decade — two locations and a franchise, roughly 4,000 square feet, serving on the order of 275,000 visitors — including design collaboration with manufacturers, ASTM compliance in daily operations, staff training, and maintenance programs.

What ASTM F1918 covers — and what it doesn’t

The current edition is ASTM F1918-21. It is a safety performance specification, developed by ASTM Committee F15 on Consumer Products, Subcommittee F15.36 on Soft-Contained Play Systems. It was originally approved in 1998.

ASTM’s published scope is unusually useful in litigation because it states, in the standard’s own words, what the document is and is not:

  • Its purpose is to reduce the potential for life-threatening and debilitating injuries.
  • The intended user range is the 5th percentile 2-year-old through the 95th percentile 12-year-old.
  • It does not include public playground equipment, home playground equipment, sports equipment, amusement rides, fitness equipment that is not part of the play system, water-related attractions and devices, or toys and juvenile products.

The table of contents is equally revealing. F1918 is not only a design spec. It includes sections on materials and manufacture, performance requirements, access and egress, equipment, areas outside the equipment, structural integrity, maintenance, fire safety, and evacuation.

Those last items are where indoor-playground cases often actually live — and where a trampoline-court or outdoor-playground analysis tends to go silent.

The three-standard trap

Counsel, and the experts they retain, commonly reach for one of three documents. Only one of them usually belongs.

ASTM F1918-21 — soft contained play equipment. Committee F15. A consumer-product safety performance specification. Indoor enclosed play systems. Intended user range ages 2–12.

ASTM F2970-25 — trampoline courts. Committee F24 (Amusement Rides and Devices). A practice covering design, manufacture, installation, operation, maintenance, inspection, and major modification of commercial trampoline courts. If the injury happened on a trampoline court, F2970 is the starting point. If it happened in a tube slide, ball pit, or enclosed climbing structure, it is not.

ASTM F1487-25 — playground equipment for public use. Also Committee F15, but written for public playgrounds — parks, schools, municipal equipment — with use-zone and surfacing analysis that assumes open play, not a fully enclosed indoor system.

A fourth mix-up appears when the venue also has bounce houses or other inflatable attractions. Those are generally analyzed under ASTM F2374 (inflatable amusement devices), not F1918.

F1918 says amusement rides are outside its scope. F2970 is an F24 amusement practice. Treating a padded indoor play structure as if it were an amusement ride, or as if it were a trampoline court, is how opinions get built on the wrong foundation.

The committee difference is not academic. F24 practices are written around owner/operator programs, patron education, and amusement operations. F15 performance specifications are written around equipment hazards: entrapment, entanglement, protrusions, materials, access and egress, fire, and evacuation. The questions you ask in discovery should follow the document that actually applies.

Why the wrong standard changes the case

Age. F1918 is written for children from 2 through 12. A toddler under 2 in a structure designed and labeled for that range, or a teenager in the same structure, is not a “kids will be kids” footnote. It is a scope fact. Age-banding, posted rules, and whether the operator enforced them become central.

The mechanism of injury. Indoor SCPE injuries often involve entrapment or entanglement in netting and openings, falls from internal platforms, slide-exit conditions, collisions inside enclosed corridors, degraded foam or impact-absorbing materials, overcrowding, or a child who could not get out. Those are F1918 issues. They are not “failed to pad a trampoline frame” issues.

Maintenance and inspection. F1918 includes a maintenance section. Manufacturer manuals for SCPE typically require periodic inspection of netting, connectors, padding, slide beds, and structural attachments. If the working file is built around F2970, those records may never be requested.

Fire and evacuation. Enclosed play systems create a hazard that open trampoline courts and outdoor playgrounds do not: children inside a multi-level structure who must get out. F1918 includes fire-safety and evacuation sections. In a smoke, crowding, or emergency-egress case, a trampoline-court analysis will miss the issue.

Daubert / Rule 702. An expert who applies trampoline-court practice to a soft-contained play structure is opining outside the standard that governs the equipment. That is a methodology problem, not just a disagreement about the facts.

Hybrid facilities make this worse, not better

Many modern venues mix attractions under one roof: a soft-contained playground, a small trampoline area, an inflatable, a café, party rooms.

One waiver. One staff. One brand name. Several standards.

The correct approach is modular. Identify the equipment involved in the incident, then apply the standard written for that equipment. A family entertainment center is not a single ASTM classification.

Peter Jay’s own facilities combined soft-contained play with small trampoline features. That is common. It is also why a one-standard report is often incomplete.

What counsel should obtain early

In an indoor-playground injury case, the useful first requests usually include:

  • Manufacturer name, model, and installation drawings for the play system
  • The operations and maintenance manual actually used — not a generic industry pamphlet
  • Age recommendations and how they were posted and enforced
  • Daily opening/closing checklists and inspection logs
  • Repair, replacement, and incident records for the component involved (netting, slide, platform, ball pit, connectors)
  • Staff training materials and supervision assignments for the play structure
  • Occupancy or capacity practices inside the structure
  • Any prior complaints involving the same component
  • Whether trampoline courts, inflatables, or outdoor-playground equipment share the same floor and the same staff

Then compare those materials with ASTM F1918-21 — not with the standard the operator’s insurer happens to know.

Industry standards do not automatically establish liability. Courts may, however, permit evidence of industry standards and custom as bearing on the standard of care. That is why the right standard has to be in the file before the expert is asked to write.

How MIT Experts approaches these cases

MIT Experts is often retained on trampoline-park and zipline matters. Indoor playgrounds are a different practice, and they are a substantial part of how the firm actually operated.

Peter Jay, J.D., M.B.A., owned and operated indoor playgrounds constructed from soft-contained play equipment. He is also an ASTM F24 participant and a retained expert in amusement-industry litigation.

That combination matters in SCPE cases: the standard that applies is a consumer-product performance specification, but the defendant is usually an operator. Someone has to be able to speak to both the equipment and how these businesses are actually run.

MIT Experts provides confidential case evaluation for plaintiff and defense counsel, including standard-of-care analysis, discovery support, and expert reporting. Attorneys handling an indoor-playground injury are invited to request a case evaluation at mitexperts.com/caseevaluation.

Can a Liability Waiver Defeat an Amusement Injury Lawsuit?

Why the Answer Is Often More Complicated Than the Waiver Suggests

Trampoline parks, ziplines, aerial adventure courses, indoor playgrounds, climbing attractions, and other amusement facilities commonly require participants—or parents signing for minor children—to execute liability waivers before participating.

When an injury occurs, the waiver may become one of the first issues evaluated by attorneys on both sides.

For an injured patron, the existence of a signed waiver can initially appear to present a major obstacle. For an operator or insurer, it may appear to provide a strong defense.

But a signed waiver does not necessarily end the analysis.

The enforceability and scope of recreational liability waivers vary substantially by jurisdiction and depend upon the language of the agreement, the circumstances under which it was executed, the risk that actually caused the injury, and—critically—the conduct of the amusement operator.

In serious amusement injury cases, the more important question may therefore be:

What exactly happened, and is that conduct something the participant could legally and effectively waive?

Liability Waivers Are Governed Primarily by State Law

There is no single nationwide rule governing recreational liability waivers.

State law generally determines whether an exculpatory agreement is enforceable, and the rules can vary considerably from one jurisdiction to another.

Some states are relatively receptive to recreational releases covering ordinary negligence. Colorado, for example, has recognized that recreational businesses generally are not providing essential public services and may, under appropriate circumstances, contract against liability for ordinary negligence.

But even jurisdictions that recognize recreational waivers impose limitations.

Courts may examine such issues as:

  • whether the waiver clearly communicates the rights being released;

  • whether its language is ambiguous or excessively broad;

  • whether important provisions are sufficiently conspicuous;

  • whether the agreement specifically addresses the risk involved;

  • whether the waiver violates state statutes or public policy; and

  • whether the operator's conduct exceeds the type of ordinary negligence that may legally be released.

That last issue can become particularly important in amusement injury litigation.

A Waiver of Ordinary Negligence Is Not Necessarily a Waiver of More Serious Misconduct

One of the most important distinctions in waiver litigation is the difference between ordinary negligence and more serious conduct such as gross negligence, recklessness, willful misconduct, or intentional wrongdoing.

Courts generally impose significant public-policy limitations on attempts to contract away responsibility for conduct beyond ordinary negligence.

This creates an important investigative issue in amusement cases.

Consider the difference between an unexpected operational mistake and evidence showing that an operator:

  • repeatedly failed to perform required inspections;

  • knew that safety equipment was defective but continued operating the attraction;

  • ignored manufacturer warnings or safety bulletins;

  • operated equipment contrary to manufacturer requirements;

  • failed to implement required safety systems;

  • knowingly departed from established industry safety practices;

  • inadequately trained employees responsible for safety-critical functions; or

  • continued operating after becoming aware of a dangerous condition.

The legal characterization of those facts depends upon the jurisdiction and circumstances. But evidence of repeated, knowing, or substantial safety failures may become relevant to whether the alleged conduct falls outside the protection of an otherwise enforceable waiver.

That is one reason the technical investigation can be just as important as the language printed on the waiver.

ASTM Standards and Manufacturer Requirements Can Become Important Evidence

In amusement litigation, determining what the operator should have done frequently requires understanding the industry's technical and operational standards.

Depending upon the attraction, relevant evidence may include:

ASTM F24 standards for amusement rides and devices

Manufacturer operations and maintenance manuals

Manufacturer service bulletins

Inspection requirements and inspection records

Employee training materials

Maintenance records

Incident and accident reports

Daily opening and closing procedures

Equipment specifications and engineering documentation

Applicable state and federal regulations

Industry standards and customs do not automatically determine liability. However, courts may permit evidence of industry standards and customs as evidence bearing upon the applicable standard of care.

This can make expert analysis particularly important.

An expert familiar with amusement operations can compare what actually occurred with the procedures, equipment configurations, inspections, training, and safeguards that should have existed.

The Difference Between an Inherent Risk and an Operational Failure

Another important issue is identifying the actual mechanism of injury.

There can be an important distinction between a risk inherent in an activity and a hazard allegedly created by improper design, maintenance, installation, supervision, or operation.

For example, falling while jumping on a trampoline is fundamentally different from an allegation involving:

  • exposed structural components;

  • inadequate padding;

  • improper trampoline-bed tension;

  • a gap between an attraction and surrounding platform;

  • defective or improperly installed equipment;

  • inadequate separation between participants;

  • improper court monitoring; or

  • failure to follow manufacturer operating requirements.

Likewise, a zipline participant may understand that ziplining involves speed, height, and physical forces.

That does not necessarily answer allegations involving:

  • improper harnessing;

  • incorrect braking configuration;

  • inadequate braking distance;

  • failure of a trolley, lanyard, connector, or braking component;

  • improper platform construction;

  • failure to inspect equipment;

  • inadequate employee training; or

  • continued operation of equipment after a known problem was identified.

Identifying the mechanism of injury can therefore become critical both to the underlying negligence analysis and to determining whether the event falls within the risks contemplated by the waiver.

Does the Waiver Actually Cover the Accident That Occurred?

Even when a jurisdiction permits recreational liability waivers, courts may scrutinize whether the agreement clearly encompasses the particular risk involved.

The memorandum reviewed by MIT Experts discusses Colorado decisions examining factors such as whether the agreement uses simple and clear language, whether it is excessively complicated, whether important provisions are emphasized, and whether the release specifically addresses the risk that caused the injury.

This presents another reason attorneys should resist evaluating an amusement case solely by asking whether the plaintiff signed a waiver.

Instead, compare the waiver with the actual accident mechanism.

If a trampoline waiver discusses ordinary risks associated with jumping and falling, for example, does that language clearly encompass an injury allegedly caused by a structural gap, equipment failure, or improper installation?

If a zipline release warns generally about heights and outdoor recreation, does it clearly address an accident allegedly caused by improper harnessing, braking-system failure, or a defective platform?

Those questions are jurisdiction-specific, but the underlying accident investigation can be essential to answering them.

Overly Broad Waivers Can Create Their Own Problems

Broader is not always better.

Some waivers attempt to release the operator from "any and all claims" or "all liability." Depending upon the governing law and drafting, sweeping language may create questions about ambiguity, public policy, and whether the agreement improperly attempts to encompass conduct that cannot legally be released.

Courts also differ on what happens when part of a waiver is impermissibly broad.

Some may sever problematic language and enforce the remainder. Others may decline to rewrite an overreaching provision for the party that drafted it.

Accordingly, attorneys should examine the exact waiver—not simply accept the characterization that "the plaintiff signed a release."

How the Waiver Was Presented May Matter

The substance of the waiver is only part of the analysis.

Its presentation can matter as well.

Courts in some jurisdictions consider whether the signer received adequate notice that he or she was surrendering significant legal rights.

Questions can include:

Was the waiver a separate document?

Was it clearly identified as a liability release?

Were important provisions emphasized?

Was it buried inside a registration agreement?

How much text appeared on the screen?

Was it signed on a kiosk, tablet, or smartphone?

Could the participant readily review the entire agreement?

Was the signer rushed through the process?

What did the facility's employees tell participants about the document?

These facts can become particularly relevant in modern amusement facilities where waivers may be completed rapidly on electronic kiosks while a family or group is waiting to enter an attraction.

For attorneys investigating these cases, preserving the actual version of the electronic waiver and the user interface through which it was presented may therefore be important.

Why Early Expert Investigation Can Matter

A waiver issue initially looks like a contract question.

But in an amusement injury case, determining whether the waiver ultimately applies may require a much broader factual and technical investigation.

An attorney may need to determine:

  1. What actually caused the accident?

  2. What safety standards applied?

  3. What did the manufacturer require?

  4. Was the attraction properly installed and maintained?

  5. Were inspections properly performed and documented?

  6. Were employees adequately trained?

  7. Did the operator know about the hazard before the accident?

  8. Were previous incidents or complaints reported?

  9. Did the operator continue operating despite a known safety problem?

  10. Does the risk described in the waiver actually correspond to the mechanism that caused the injury?

The answers may significantly affect the waiver analysis.

Evidence Attorneys Should Consider Preserving

When a waiver may become an issue in a trampoline park, zipline, aerial adventure, indoor playground, or amusement injury case, early preservation can be critical.

Potential evidence includes the waiver itself and its revision history; photographs and video of the attraction; surveillance footage; manufacturer manuals and service bulletins; inspection and maintenance records; employee training records; prior incident reports; repair records; internal communications concerning known hazards; state inspection records; applicable ASTM standards; and the equipment involved in the accident.

In serious cases, attorneys should also consider whether a prompt site inspection is appropriate before the facility repairs, replaces, reconfigures, or removes relevant equipment.

A Signed Waiver Should Be the Beginning of the Analysis, Not Necessarily the End

Liability waivers can be important defenses in recreational injury litigation. In some jurisdictions and under appropriate circumstances, they can bar claims based upon ordinary negligence.

But their effect should not be assumed.

Waiver enforceability may depend upon state law, public policy, the wording and presentation of the agreement, the particular risk involved, and the nature of the operator's conduct.

For amusement injury attorneys, this means the waiver and the technical accident investigation should often be evaluated together.

A participant may have agreed to accept certain inherent risks of an activity.

That is a different question from whether the participant legally released an amusement operator from responsibility for an alleged equipment defect, ignored manufacturer requirement, inadequate inspection program, improper installation, deficient employee training, or knowing disregard of an identified safety hazard.

Understanding that distinction can fundamentally change how an amusement injury case is evaluated.


How MIT Experts Can Help

MIT Experts specializes in accident investigation and expert witness services involving trampoline parks, ziplines, aerial adventure attractions, indoor playgrounds, amusement rides, and related recreational facilities.

Our work includes evaluating accident mechanisms, equipment configurations, ASTM and industry standards, manufacturer requirements, inspection and maintenance practices, employee training, operational procedures, and other technical issues relevant to determining whether an amusement facility complied with the applicable standard of care.

When a liability waiver is involved, that technical investigation may help counsel determine whether the accident involved an ordinary inherent risk—or evidence of safety failures that require a substantially different legal analysis.

If your firm is evaluating an amusement injury case involving a liability waiver, MIT Experts can assist with early case review, evidence preservation, site inspections, standards analysis, and expert testimony.

This article is provided for informational purposes only and does not constitute legal advice. Liability-waiver law varies significantly by jurisdiction and attorneys should evaluate the statutes and controlling case law applicable to the particular case.

Written By Peter Jay

Authored by seasoned professionals with extensive experience in amusement industry operations and legal expertise, providing authoritative perspectives on complex injury cases.

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