A look at finished data center space inside the DuPont Fabros CH1 data center in Elk Grove Village, Ill., where Rackspace Hosting has leased 36,700 square feet of space.

Rackspace Hosting (RAX) will open a new data center in Chicago, continuing the steady expansion of the company’s infrastructure as its expands into cloud computing. Rackspace will lease 36,700 square feet of raised floor space in a huge facility built by DuPont Fabros Technology (DFT) in the Chicago suburb of Elk Grove Village.