Parking aircraft on both sides of the landing area is standard practice....big as they are....Flight Deck space must be used as best possible.
Read some of Steve Coontz books, "Intruders" springs to mind as one that discusses the art of landing aboard Carriers and the perils it poses. He flew A-6's during his time in the USN.
Another excellent book is his "Cannibal Queen".....a real aviation classic.