the following question was shown and answered in my opinion incorrectly. this should likely be 3’ above finished floor, or 4’, but never 6!
An architect is setting up a building information model (BIM model) for a new project, and must establish the plane at which floor plans will be cut through the model.
How high above the floor is a typical “cut plane” for a floor plan?
✓
3 feet
Incorrect. At this height, some windows would not be shown (if they begin at 42" above the floor, for example).
6 feet
Correct. This height allows the floor plan to show windows, cabinetry, doors, and all other pertinent information that should be included in a floor plan. Any higher or lower height would potentially not cut through these pieces of information. All information above this plane is typically shown on a reflected ceiling plan.
1 foot
Incorrect. At this height, no windows except floor-to-ceiling windows would be shown. All casework (which is typically about 3 feet tall) would be shown, potentially creating a confusing drawing.
8 feet
Incorrect. 8 feet would be too high to cut through doors (which are typically less than 8 feet tall) and some windows.