The nave, which has five bays, is 211 feet (64 m) long and 35 feet (11 m) wide to the pillars and rises to 75 feet (23 m), with the whole church being 225 feet (69 m) long and 80 feet (24 m) wide.
The west front, which was originally constructed in 1520, has a large arched window and detailed carvings. Above the window are carvings of angels and to either side long stone ladders with angels climbing up them. Below the window a battlemented parapet supports a statue and beneath this, on either side of the door, are statues of St Peter and St Paul. Restoration work in the late 20th century involved cleaning with electronically controlled intermittent water sprays and ammonium carbonate poultices. One of the figures which had lost its head and shoulders was replaced. The sculptures on the West front have been interpreted as representing "spiritual ascent through the virtue of humility and descent through the vice of pride" and Christ as the Man of Sorrow and the Antichrist. During the 1990s a major restoration and cleaning work were carried out on the exterior stonework, returning it to the yellow colour hidden under centuries of dirt