An outline proposal for a drum-shaped Library has been developed. We have demonstrated the suitability of the plan shape: the main test set by the Librarian was an orthogonal structural grid within its basement to allow for the possible future installation of sliding stacks. A solution to the superimposing of the two systems, which optimises both the radial layout on upper floors, and allows efficient orthogonal stacking in the basement, can be seen below on the Ground and Basement floor plans.
![Library cross-section](https://www.cms.cam.ac.uk/files/about/history/images/libsection.gif)
Cross Section
![Library ground floor](https://www.cms.cam.ac.uk/files/about/history/images/new.library.0.gif)
Ground Floor: Reference material, new acquisitions and library staff area.
![Library first floor](https://www.cms.cam.ac.uk/files/about/history/images/new.library.1.gif)
First Floor: Current periodicals
![Library second floor](https://www.cms.cam.ac.uk/files/about/history/images/new.library.2.gif)
Second Floor: Books
![Library lower-ground floor](https://www.cms.cam.ac.uk/files/about/history/images/new.library.-1.gif)
Lower Ground Floor: Periodicals in fixed and sliding stacks, all open access.