Sistine Chapel ceiling reread the Old Testament while he was painting the ceiling, drawing his inspiration from the words of the scripture, rather than from the established traditions of sacral art. A total of 343 figures were painted on the ceiling. To reach the chapel's ceiling, Michelangelo designed his own scaffold, a flat wooden platform on brackets built out from holes in the wall near the top of the windows, rather than being built up from the floor. Mancinelli speculates that this was in order to cut the cost of timber. According to Michelangelo's pupil and biographer Ascanio Condivi, the brackets and frame
Sistine Chapel exterior can be seen only from nearby windows and light-wells in the palace. Subsidence and cracking of masonry such as must also have affected the Cappella Maggiore has necessitated the building of very large buttresses to brace the exterior walls. The accretion of other buildings has further altered the exterior appearance of the Chapel. The building is divided into three stories of which the lowest is a very tall basement level with several utilitarian windows and a doorway giving onto the exterior court. Internally, the basement is robustly vaulted to support the chapel. Above is the main space, the Sistine