Should trampolines be on concrete or grass?

Grass is the clear winner — a grassy surface absorbs impact, anchors the frame against shifting, and gives jumpers a forgiving landing if they exit the enclosure, none of which concrete provides.

Concrete transfers every vibration directly into SKYUP's W-shaped legs rather than letting the ground absorb lateral stress, which accelerates frame wear and raises the stakes of any fall outside the enclosure. Grass also allows wind stakes to be driven into the soil — a critical step for the 16 ft model in open yards where wind displacement is a real structural hazard. Bare dirt is acceptable; hard paving is not.

• SKYUP wind stake anchor kits require penetrable ground — stakes cannot be driven into concrete or paving.
• A trampoline on concrete needs a minimum 3 to 4 ft of clearance buffer on all sides, same as on grass.
• ASTM F381 standards do not prohibit hard-surface placement but assume a fall-zone surface that reduces impact severity.
• SKYUP's 16 ft model weighs enough that frame migration on hard, smooth surfaces is a documented risk without anchoring.