Related Clues:

• Portion of a flight
• Word with ''case'' or ''well''
• Word with case or way
• Climbing unit
• Floor access
• Connector of stories
• Link to another story?
• Part of some exercise machines
• Way up or way down
• Way up, maybe
• Baluster connection
• It may lead to a landing
• Rail site
• Part of a flight?
• Flight unit?