The Terra-Stand is made of a high impact copolymer polypropylene adjusting from 2? to 21? in height and slope compensating up to 5/8? to provide a level installation. Outside base dimension of 7? x 7? provides contact surface of 49? square. It is installed on previously established grid lines, adjusted for height and slope and ready for installation. Load of 3,000 lbs. per pedestal. Terra-Stand is designed for exterior application using Tectura Designs Pavers on pitched roof decks, plazas, roof plazas, parking garages, roof terraces, and more.