Trampoline Springs
A helical spring.
The springs are what provide the, er, spring in your trampoline. These should be made from high quality steel wire which is fully galvanised to protect against rust and corrosion. It should have a helical coil type. What's a helical coil type? It's piece of bar or wire that is wound into helix shape as pictured right.
Having established the quality of the springs, take note of the length and number. On domestic round trampolines springs range in length from 8.5" to 5.5".The heavyweight rectangular trampolines sometimes use a 9.25" spring. The longer and more numerous the springs the greater the upper weight limit will be.
Some trampolines have elasticated bands sewn onto the bed. They give an inferior and harder bounce than springs. Another disadvantage is when the elastic perishes you will have to replace the entire bed, as the bands cannot be replaced individually.
How Will a Trampoline Benefit Your Life?…What You Said
"It would help me get fit and enjoy my kids lives with them better "
"I should exercise more, I need to lose a few ounces, Treadmill steps don't appeal, but I could handle trampoline 'bounces'!"
"Bounce high, bounce low, keep your body on the go."
"I'd jump like a mexican bean, With an underfoot trampoline, The stresses would fly As I reach for the sky Having fun thats both healthy and clean."