The Floor Area of a Room with Angled Bump-out calculator computes the floor area of a rectangular room with an angled bump-out based on the length and width of the room and the front and back widths and depth of the bump-out.
INSTRUCTIONS: Choose units and enter the following:
- (L) Length of Room
- (W) Width of Room
- (BW) Bump-out Opening Width
- (BN) Bump-out Back Width
- (BD) Bump-out Depth
Total Floor Area (A): The calculator returns the total area in square feet. However, this can be automatically converted compatible units via the pull-down menu.
The Math / Science
The formula for the area of a rectangular room with an angled bump-out is:
A = L ⋅ W + 0.5⋅BD⋅(BW+BN)
where:
- A = Floor Area of Room with Angled Bump-out
- L = Length of Main Room
- W = Width of Main Room
- BW = Width of Bump-out Opening
- BN = Width of Bump-out Back
- BD = Depth of Bump-out
Room Floor Area Calculators
- Area of Room's Floor - Area of Floor in Rectangular Room
- Area of Room's Floor with Angled Bump-out - Area of Floor in Rectangular Room with Angled Bump-out
- Area of Room's Floor with Squared Bump-out - Area of Floor in Rectangular Room with Squared Bump-out
Most rooms are simple rectangles with a length and a width. The only common departure are rooms with bump-outs. Some bump-outs are angular and taper down from an opening. Some bump-outs have squared corners. To compute the square feet of these floors are simple geometry based on the measurements of the main floor and the bump-out dimensions.
To compute the area of a floor with a different shape (e.g., circular, oval, or polygon), see the Area Calculator.