Answer: stairwells

AnswerCrossword Clue
STAIRWELLSShafts for flights
STAIRWELLSBuilding features
STAIRWELLSCertain compartments in buildings
STAIRWELLSBuilding shafts
stairwellsA shaft in a building in which a staircase is built
stairwellsSTAIRWELL, a vertical shaft or opening that contains a staircase