 The chancel measures 16 feet 6 inches by 22 feet 9 inches (5.03 by 6.93 m), and the main body of the chapel measures 52 feet 6 inches by 22 feet (16 by 6.7 m). A London merchant, Lewis Roberts, gave "some hundreds of white and black marble stones ... towards ye paving of the upper part of the chapel", according to Francis Mansell in his inventory of 1648. It is unclear when these were added to the floor; some are still in position, although others were removed in the 1864 renovation. The oak pulpit dates from the early 17th century, and has moulded rectangular panels. There is a bell turret on the west end of the roof, which has trefoil-shaped openings on the west and east sides, and panels decorated with trefoils on the other two sides. It was built in about 1915, replacing an earlier turret of similar shape.
