Includes one shelf, not an entire shelving unitShelf can accomodate an 800 lb. load. 1" Diam. posts are adjustable at 1" increments and are numbered every 2" for easy assembly. Features leveling feet for use on uneven surfaces. Feet unscrew to accomodate casters sold seperately. Choose Green Epoxy for moist areas. Choose Chrome for dry environments 36"Wx24"D. 12 lbs. Picture shown with intermediate shelves (not included).