Edited sentence: St Nicolas' Church is a large cruciform building with a central tower.The main building material is flint rubble-work; some walls have stone dressings.The roof is tiled with slabs of Horsham stone— another common feature in the area.These are the most common structural materials used for ancient churches in Sussex.This is a common plan in Sussex: central towers are often seen, and the cruciform layout (nave to the west, chancel to the east and transepts to the north and south) is commoner than the linear alternative without transepts