These are like the type Costco sold a few years ago with heavy duty legs and shelf supports. These usually go for $75.00 or more. The shelves are adjustable(up or down) and the units are stackable as shown in picture #2. Some of the units have been used, all are very clean. Measurements are 36" tall, 48 3/4" wide, 18 3/4" deep. The unit comes with all parts needed to build a complete 3 shelf unit. I have enough pieces to build 12 of these units. I also have an excess supply of long shelf supports if you want to build a large square unit (48 3/4" X 48 3/4"). I don't have boards that would fit the square unit. The legs and supports are covered with grey powdercoating. The shelves are 1/2" pressboard. Pick up is in Kahului. 268-1780 hawaii