The Church has a Latin cross plan, composed of three naves at the same height (Hallenkirche). Contrary to the proportions of the square section of Alcobaça 20x20m, and of 20x25 Batalha, here in Jerónimos the height of the rectangular section in height of 20x30m reigns that together with a slender structure of only 6 columns where the traditional Gothic arches (toral, perpianho or formeiro) that supported the cross vaults are absent, replaced here by a single low profile vault, flattened, a mixture between the vaults combados and abanico (used in England and northern Europe), and this whole set gives us a reading of a unified space, of a great hall, without the traditional heavy marking between the three naves of the Gothic of the Monasteries of Alcobaça or the Battle.