Gross area vs Net area of a property

In property we refer to the Gross area vs Net area of a property.
www.cstproperties.com/gross-l...
Net area is the floor area within the perimeter of the external walls.
Such as labs, restaurants, classrooms, function places, storage
Gross area is the whole area of the building including the common areas. Including corridors, stairways, toilets, thickness of walls
Link to Property book "Commercial Real Estate Investing for The Residential Investor - The 7 Myths Of Commercial Property -www.amazon.com/dp/B0BV5NVJYD/
By CST Properties. Commercial Real Estate agents and business brokers
www.cstproperties.com