Doors, Windows and Fixtures
≈ 36 minDoors, Windows and Fixtures
On a floor plan, doors, windows and fixtures are drawn as standard symbols rather than as pictures, so any reader interprets them the same way.
Doors. The leaf is shown as a line at 90° to the frame, with a quarter-circle swing arc showing which way it opens and how much floor it sweeps. The arc is not decoration: furniture cannot be placed in it, and it determines whether two doors clash.
Windows. Drawn as a break in the wall with lines representing the frame and glazing. The sill height comes from the sectional elevation, not the plan.
Fixtures — baths, basins, WCs, sinks, stoves — have conventional symbols drawn to scale in position, so room layouts can be checked for clearance.
Worked example. Two doors opening into the same corner of a passage will collide. On the plan this is visible immediately as two overlapping swing arcs — before anything is built. That is exactly what the arcs are for.
Core checkpoint: Draw the swing arc on every door. Without it the plan does not say which way the door opens, and clashes stay invisible.
What does the quarter-circle arc at a door on a floor plan represent?
Which drawing gives a window's sill height?
Why are fixtures such as baths and basins drawn to scale in position rather than merely noted?
Two doors are drawn opening into the same corner of a passage. What does the plan reveal?