Allowing module-handling space in a large shipyard

Should a yard intended for 350-meter warships have a roughly 400-meter building shed?

Probably, because modular construction needs clearance for receiving, storing, lifting, and positioning large hull sections.

A shed around 400 meters long would probably suit a yard intended to build ships about 350 meters long. Modules around 25 meters need room to enter the shed, wait for lifting, and move into position on the hull. Extra length at the ends provides useful handling clearance. Bringing modules in from the side is possible, but end space can make their movement easier.