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Four US codes demand between 90 and 375 stalls for one 30,000 sq ft trampoline park. What operators observe, what the code assumes, and what the gap costs.

A 30-person trampoline park loses about 22 team members a year at the industry separation rate. The loaded cost is $1.85 per admission. Here is the math.

Eight document checks in the order they must happen: verify steel certificates, weld records, mat fabric and test report scope before you pay a deposit.

A filing set a 15 July completion; the doors opened 23 October. The four cost lines behind a $321,400 slip, and the lease clause that decides who pays.

Air Extreme in Barnstaple shut after a lease forfeiture notice appeared on 19 October 2026. The verified timeline and the lease checks operators need.

The same $19.99 jump ticket carries no admission tax in Bolingbrook and $2.40 in Chicago. Six cities, the rates, the classification traps and the math.

Big Air opened its first Illinois park in Bolingbrook on October 24, 2026. Ticket prices, attraction density and founding-member math, all checked.

A jumper at 8 METs produces about 2,200 Btu/h. The load arithmetic that sizes cooling for a 30,000 sq ft trampoline park, and what it costs to run.

Four 2026 builds in Saudi Arabia, Malaysia, India and Egypt, the figures each published, and the three specs that have to change when the site does.