The last major components to be put into place were the 16 semi-circular ribs of the vaulted transept, which were the only major structural parts that were made of wood. These were raised into position as eight pairs, and all were fixed into place within a week. Thanks to the simplicity of Paxton's design and the combined efficiency of the building contractor and their suppliers, the entire structure was assembled with extraordinary speed: a team of 80 men could fix more than 18,000 panes of sheet glass in a week,and the building was completed and ready to receive exhibits in just five months.
