Round trampolines are the traditional and original shape garden trampoline. The circular shape provides even tension on the springs, which means that there is only one central bounce area. If you tumble or fall, you will be pulled back to the middle, which is where you will find your greatest bounce. Always consider who will be using trampoline? If you are looking for a trampoline that all the family can use, you may look at a higher user weight limit which is great for older children, but, not great for younger children.
Oval trampolines have a different spring configuration than that of a round trampoline, providing 3 different bounce areas for a safer jump, which is great if you are going to allow more than one user on at a time (which we do not recommend). The oval shape fits nicely into more narrow gardens.
Rectangular trampolines are becoming more widely available for domestic use. They are most popular with serious trampolinists or gymnasts as they are more suited to doing moves and tricks. The rectangle shape and spring configuration provides the user with a more professional jump than that of a round trampoline.