end of the cathedral. The entire structure measures long. From west to east, the cathedral contains a narthex measuring long by wide; a nave of ; a crossing of ; a choir of ; and the Chapel of St. Savior in the apse, measuring with an ambulatory wide. The cathedral's western elevation is wide; if the transepts had been completed, they would have measured from end to end. The cathedral has an interior floor area of and can host 8,600 people. , these dimensions make St. John's the sixth-largest Christian cathedral in the world, and puts it in competition with Liverpool Cathedral as being the world's largest Anglican cathedral. The original design for the cathedral was created by Heins & LaFarge. Despite being primarily Byzantine and Romanesque in influence, the last version of Heins & LaFarge's design contained a significantly Gothic-style appearance. The original plan at St. John's called for tiled-arch domes and barrel vaults. The crossing was to be held up by four round arches under a dome, with a tower on top. The completed cathedral was supposed to have been long and wide between transepts, while the tower would have been tall. The modern plan for the building, as it appeared upon its official opening in 1941, conforms primarily to the second design campaign from the prolific Gothic Revival architect Ralph Adams Cram. The plans are based on the French Gothic style, with English Gothic accents. Cram had initially wanted to use English Gothic models, which typically placed less emphasis on vertical elements and height, and which contrasted with the extant parts of the cathedral. Cram's plan originally called for three main entrances; two spires set back from the western facade; two smaller spires on the western facade. Inside were ten full-height aisles, with a triforium and clerestory rising to the ceiling, as well as large chapels along each side of the nave. The design provides a transition between the nave and the crossing, because the nave was to be wide, about half the width of the crossing. Cram, described as a "brilliant perfectionist", frequently revised his proposal and later spoke of Heins & LaFarge's plans as better than his own. One major change, published in 1926, called for a , square tower above the crossing and five portals on the western elevation. Another revision was published just before he died in 1942, and called for a spire