ceiling clearance
- headroomOverhead vertical space
- heightVertical extent upward
- overheadLocated directly above
- gapUnfilled space between
- spaceUnoccupied area or interval
ducking · clearance · passage · vertical · beam · rafters · attic · basement · garage · ductwork · allowance · margin · room · crouch · stooping · doorway · scaffold · loading
vertical space measurement
ceiling clearancelow clearance
Insufficient vertical space
height restriction · ground clearance · crawl space · tight squeeze