companionways
Vessel's internal staircases
Companionways are the staircases or ladders on a ship that connect one deck to another.
The term comes from nautical architecture, where space constraints require steep, narrow passages between levels: She descended the companionway to the cabin below.
The singular companionway refers to a single such staircase or the hatchway leading to it.
stairs
Set of steps
narrow · steep · handrail · treads · opening · passage · vertical · entry · boarding · transit
ladder
Portable climbing frame
cabin · galley · berth · passageway · bulkhead · deck · vessel · yacht · ship · schooner
type of ship access
companionwaysgangplanks
Portable ship-to-shore walkways
gangways · boarding ramps · brows · passageways · corridors