 The bell openings have reticulated tracery, with two minor reticulation units within the major one.The nave, without pillars or aisles, is nearly wide, the widest among Norfolk’s parish churches, giving a large preaching space as pioneered by the mendicants.The nave and chancel have battlemented parapets and a pantiled roof built in 1781, supported by kingposts on arched ties, which solved earlier problems caused by the width of the nave.