This was his first public commission, and was a major breakthrough for Le Corbusier. He gave the building the name of his pre-war theoretical project, the "Cité Radieuse", and followed the principles that he had studied before the war, he proposed a giant reinforced concrete framework, into which modular apartments would be fit like bottles into a bottle rack. Like the Villa Savoye, the structure was poised on concrete pylons though, because of the shortage of steel to reinforce the concrete, the pylons were more massive than usual. The building contained 337 duplex apartment modules to house a total of 1,600 people. Each module was three stories high, and contained two apartments, combined so each had two levels (see diagram above). The modules ran from one side of the building to the other, and each apartment had a small terrace at each end. They were ingeniously fitted together like pieces of a Chinese puzzle, with a corridor slotted through the space between the two apartments in each module. Residents had a choice of twenty-three different configurations for the units. Le Corbusier designed furniture, carpets and lamps to go with the building, all purely functional; the only decoration was a choice of interior colors that Le Corbusier gave to residents. The only mildly decorative features of the building were the ventilator shafts on the roof, which Le Corbusier made to look like the smokestacks of an ocean liner, a functional form that he admired.