To correctly measure the Jump Mat, you need to measure the frame size of your trampoline. You also need to measure the spring size of your springs from hook to hook ensuring it is not stretched. The most usual lengths are 5.5 inches or 7 inches. We currently supply jump mats for 8 foot, 10 foot, 12 foot, 13 foot and 14 foot trampolines in either 5.5 inch or 7 inch spring sizes. The number of eyelets on your mat can be counted also however, if this number differs by a few or even up to 8 or 10 from universal replacement you can just space the springs out and it will still be a successful replacement fitting.
