Find the total square footage of an L-shaped or irregular room.
An L-shaped room splits into two rectangles whose areas are each length times width. Adding the two rectangles gives the occupant's usable floor area. Accurate square footage drives flooring, painting and even real-estate value statements, so breaking odd rooms into rectangles is the reliable method.
Room Square Footage
Area = length x width for each rectangle, then add sections
Area = length x width for each rectangle, then add sections An L-shaped room splits into two rectangles whose areas are each length times width. Adding the two rectangles gives the occupant's usable floor area.
Accurate square footage drives flooring, painting and even real-estate value statements, so breaking odd rooms into rectangles is the reliable method.
This calculator takes 4 inputs: Main section length, Main section width, Extra section length, Extra section width. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.