The size of this huge window is 1,680 square feet. It measures 72 ft. high by 31 ft. wide. The tracery compartments number 144; the main panels, each 1 yard square, 117. In addition there are 27 canopy head-pieces. Thus in all there are no fewer than 288 openings, all filled with ancient glass.

Of the 117 panels, 27 compose an Old Testament series from the Creation to the Death of Absalom. Below these, 81 (9 rows of 9 panels) make up the Apocalypse series. Below these again are 9 panels of Saints, Kings, and Ecclesiastics.