You will need to put the trampoline mat on with the springs in the mat lined up correctly with the spaces in the frame. The easiest way to do this is to start with the springs at 12 o clock, 6 o clock, 3 o clock and 9 o clock. This distributes the tension in the mat, with less effort required to pull on the springs. Then fill in the gaps, making sure the springs and frame line up. Use the supplied spring loading tool to pull the spring taut enough to insert it into the frame. We recommend wearing protective gloves and goggles as occasionally springs may ping off.