Plastic foam and foam rubber blocks and pieces in various forms, namely, light-weight, interlocking, stackable and modular load-bearing plastic foam and foam rubber with a hard surface applied to the working surface, and further with a exterior coating applied to resist deformation and weather conditions, and to provide frictional non-slip use which can be used as stand-alone units or as complimentary units within larger structures to build various indoor and/or outdoor portable elevated surfaces or means of accessing an elevated surface in the nature of wheeled-vehicle-parks like skate parks and bmx parks, athletic activity platforms, music and theater performance staging related to drum set risers and musician stages, public speaking platforms, award stand staging, access ramps, and any other surface areas that will be enhanced by a elevated accessible surface