What are the differences among Carpet Area and Plinth or Built-up Area

Parag Pal, the renowned civil engineer, has presented this exclusive construction video tutorial that briefly explains the variations among carpet area and built up or plinth area.

Carpet Area – It is the area that exists with a building without including the area captured by the wall.

Alternatively, the carpet area is calculated from wall-to-wall inside the building and provides genuine floor area that should be carpeted.

It can be defined with the following formula :-
Carpet Area = Total Area – (Area captured by the walls)

In carpet area, the followings are included :-
All rooms containing living rooms, bedrooms, dining rooms, dressing room, other rooms, kitchen & bathrooms, store and balconies.

In carpet area, the followings are excluded :-
Interior and Exterior walls
Common areas (lobbies, gateway etc.)

Plinth or Built-up Area: It belongs to the whole area captured by the building along with the area captured by interior and exterior walls of the building. Normally, it consumes 10% to 20% more as compared to carpet area.

So, Plinth Area = Wall Thickness + Carpet Area or Carpet Area = Plinth Area – Wall Thickness

In plinth area, the followings are included :-
Whole carpet area
Interior and Exterior Walls
Utility ducts inside the walls of the unit

In plinth area, the followings are excluded :-
Common Areas like lobbies, gateway etc.

To get more details, watch the following video tutorial.

Video Source: Parag Pal