10/02/2026
How Many Types of Confined Space?
β Definition
π Confined space is an area that is not designed for continuous work, has limited entry/exit, and may contain hazards.
β
Main Types of Confined Space
πΉ 1. Open Top Confined Space
Top open but still dangerous
Example:
β Tank
β Pit
β Excavation
β Manhole
Danger: Gas can collect inside
πΉ 2. Enclosed Confined Space
Fully closed area
Example:
β Vessel
β Reactor
β Storage tank
β Sewer
Danger: Low oxygen, toxic gas
πΉ 3. Vertical Confined Space
Entry from top/bottom
Example:
β Silo
β Deep pit
β Shaft
Danger: Difficult rescue
πΉ 4. Horizontal Confined Space
Entry from side
Example:
β Pipeline
β Tunnel
β Duct
Danger: Long escape distance
π― Interview Line:
βConfined spaces may be open, enclosed, vertical, or horizontal depending on entry and design.β