From the late 14th century the nave and transepts were rebuilt, on the Norman foundations in the Perpendicular style under the direction of the noted master mason Henry Yevele. In contrast to the contemporary rebuilding of the nave at Winchester, where much of the existing fabric was retained and remodeled, the piers were entirely removed, and replaced with less bulky Gothic ones, and the old aisle walls were completely taken down except for a low "plinth" left on the south side. More Norman fabric was retained in the transepts, especially in the east walls, and the old apsidal chapels were not replaced until the mid-15th century. The arches of the new nave arcade were exceptionally high in proportion to the clerestory. The new transepts, aisles, and nave were roofed with lierne vaults, enriched with bosses. Most of the work was done during the priorate of Thomas Chillenden (1391–1411): Chillenden also built a new quire screen at the east end of the nave, into which Eastry's existing screen was incorporated. The Norman stone floor of the nave, however, survived until its replacement in 1786.