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Floor Plan Symbols
Floor plans use a shared visual language of symbols to show doors, windows, stairs, fixtures and fittings. This guide explains the most common floor plan symbols so you can read any plan with confidence.
What do symbols on a floor plan mean?
Floor plan symbols are standardised marks that represent features of a building — a quarter-circle arc for a door swing, a thin gap in a wall for a window, parallel lines with an arrow for stairs, and outlines for fixtures like baths, sinks and kitchen units. They let anyone read a plan consistently.
Walls, doors and windows
The structure of a plan is defined by walls, with openings for doors and windows.
- Walls — solid, thick lines; thicker for external walls
- Doors — a line with a quarter-circle arc showing the swing direction
- Windows — a thin break in the wall, often shown as parallel lines
- Openings — gaps in walls without a door
Stairs, levels and structure
Vertical circulation and structural features have their own conventions.
- Stairs — a series of parallel lines with an arrow indicating up
- Columns — small solid squares or circles
- Changes in level — often noted with a line and a label
Fixtures and fittings
Plans show fixed items so buyers understand how rooms function.
- Kitchen — outlines for units, sink, hob and appliances
- Bathroom — bath, basin, WC and shower shapes
- Bedroom — sometimes a bed outline to show orientation
- Built-in storage — wardrobes and cupboards as outlined boxes
Keep exploring
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