Question

___________ of building is the useful area or liveable area or lettable area. This is the total floor area minus the circulation area, verandahs, corridors, passages, staircase, lifts, entrance hall, etc. minus other non-useable areas.

(a) Plinth area

(b) Floor area

(c) Carpet area

(d) Circulation area

The question was posed to me in quiz.

Question is taken from Estimation of Basic Rates Occurred topic in division Analysis of Rates of Civil Engineering Drawing

Answer 1

Right option is (c) Carpet area

Easy explanation: For office building carpet area is the lettable area or useable area and for residential building carpet area is the liveable area and should exclude the kitchen, pantry, stores and similar other room which are not used for living purpose.