Regulations Of Trampolining

The frame of a competitive trampoline is made of steel and can be made to fold up for transportation to competition venues. The trampoline bed is rectangular 4.28 by 2.15 metres (14 ft 0.5 in × 7 ft 0.3 in) in size fitted into the 5.05 by 2.91 metres (17 × 10 ft) frame with around 110 steel springs (the actual number may vary by manufacturer). The bed is made of a strong fabric, although this is not itself elastic; the elasticity is provided only by the springs. The fabric can be woven from webbing, which is the most commonly used material.