A system for supporting a user in a shock absorbing manner over a base floor comprising at least one base platform selectively secured the base floor. There is at least one additional platform wherein this platform can be stacked on top of the base platform. This additional platform can comprise the following elements: a flexible elastic shock absorbing element which may be in the form of any shock absorbing material such as rubber; and a substantially rigid housing disposed around the flexible element. This substantially rigid housing may be in the form of any substantially rigid material and may for example be a polyurethane foam or a blow molded plastic. At least a portion of the shock absorbing element can fit inside of this substantially rigid housing in a recessed region. There is also an additional layer of rigid material which is secured to this shock absorbing element in the form of a flexible layer. This additional layer of rigid material may also be in the form of rigid foam. In this case the flexible shock absorbing layer supports the rigid housing above the rigid foam layer.