Maintaining Upper Bounce with Good Trampoline Springs and Net

Safety is the first important consideration before springs.  Be sure to check it for its structure and how it’s holding together under use.  If you see stress points or tears, replace it at once.  Without a superior quality enclosure net, jumpers might be thrown from the trampoline causing serious injuries.  You always want the bouncers to fall within the net, not off the trampoline because the net did not keep them inside.  When ordering a new net, you will need to know the frame size, number, and structure of the poles.

There is no reason to own a trampoline for those who love to bounce if the springs are in poor condition.  The second most important consideration is the quality of bounce in the springs.

  • Springs Quality—includes the length of the springs that control the bouncing the jumpers will experience. Overstretched springs or missing springs will have a reduced bounce and the jumpers won’t like that one bit!
  • Shorter Springs—give a more jolting and sharper bounce than the longer springs giving a softer bounce.
  • Overstretched Springs—is a new point of concern in the trampoline industry after 1999. It seems, as with everything else we buy today, that most full-size trampolines before that time had 96 to 104 springs at least 8-inches apart.  Being pressured from many merchants to produce cheap trampolines, the manufacturers of trampolines started making them with fewer springs and less quality.  What’s new, we say.

Trampolines now have 72 to 88 springs for a full-size unit that are merely 5.5- to 7-inches long.  You guessed it—these reconfigured springs are highly susceptible to overstretching.

  • Uneven Tension—is a most important consideration for damaged springs on your trampoline. All trampoline parts must be tensioned accurately because it influences the total trampoline.
  • Damaged Springs—can trigger tears in your mat due to the damaged spring’s ability to pull your mat in one direction more than other directions. The outer hardware can loosen on the mat, hardware falls off the mat, so what use is the mat now?  A trampoline must have tight springs for safe and fun bouncing.
  • Rusty Springs—are unsafe and must be replaced at once. Steel contains iron and will rust when exposed to rain and air.  Rust is simply iron oxide leaving an orangish power on the metal surface.  Rust makes the metal weaker with the flakes of power on the surface.  Rust will slowly eat away the steel.  Check your springs frequently for any rust and replace all springs at the same time.

If you find the springs and mat needs replacement at the same time, it can be done.  The manufacturer of you trampoline can make mats, can adjust your mat size to fit, and at the same time provide you with durable longer springs.  With the springs upgraded, you will have longer trampoline life with less expense to maintain it.

The springs come in sizes from 3.3- to 10.25-inches.  The most common is the 7-inch spring that can be found everywhere and on the Internet.  All you need to know is the size you need for your specific trampoline.  To do this, remove the old spring and measure it.  Do it with 3 to 5 springs or all the overstretched springs, since they all must be replaced.

How to Measure Your Trampoline Mat

Do not use the measurements shown in your trampoline User’s Manual.  Trampoline and jumping mats are sold separately from suppliers.

  • Round Matsmeasure straight across the frame width edge-to-edge. Measure another area as they can be slightly different.  Don’t use the Owner’s Manual for this.
  • In time, the tension is lost causing the mat to be out-of-round the same as tires do sometimes.
  • Count the number of spring holes in the frame.
  • Measure the spring twice from each end of each hook removed from your trampoline.
  • Octagon/Hexagon Mats—measure from outside point-to-point of frame. Don’t use the owner’s manual for this.
  • Don’t measure from flat side to flat side on these shaped frames:
  • Rectangle or Square Mats—measure straight across the length then the width from hole-to-hole. Having a welded bar or welded loops, measure where the spring hooks to the frame.  Measure at different areas for correctness.  Don’t use the Owner’s Manual for this.
  • Old Mats—measure the exact inches for length and width. Don’t measure triangles; only the edge of the sewed hem along the mat’s edge.  Count the number of spring holes or loops in the frame length x width.

In summary, it’s very important to inspect your trampoline springs and enclosure net regularly.  The springs support the weight of the jumper or jumpers.  When the tension, flexibility and springiness are gone, it’s time for new items to ensure safety to all jumpers.


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