Suppose areas covered as dry balcony terraces add up to the 10 per cent of the built up area while the usable area is just 70 per cent of the built up area.
Carpet area to built up area conversion.
How to calculate carpet area.
Measure the length of the room at its longest stretch.
Usually the conversion is done on a 70 to 30 ratio.
Sometimes it may also in clude the common areas such s wimming pool garden clubhous e etc.
If your carpet area efficiency is poor or very poor then you might have been bluffed by your developer builder or otherwise the planning design of the apartment flats is really very bad.
Measure the width of the room at its widest point.
For example let s assume that the built up area is 1 000 sq ft then your carpet area should be around 700 sq ft as carpet area is 70 of total built up area.
Built up area is the carpet ar ea plus the thickness of outer walls and the balcony.
Some builders add 30 33 35 40 or even a whopping 45 over the carpet area call it super built up salable area.
If it is good or very good feel happy that you are not bluffed you bought a flat from a good builder.
The 300 sq ft is not usable while 700 sq ft is the remaining area that will be used.
Built up area is how much the carpet will go into the complete area.
In this carpet area they add 25 to make it built up then calculate 1 000 square feet x rs 4 000 per square feet.
Super built up area is the bui lt up area plus proportionate area of common areas such as t he lobby lifts shaft stairs etc.
Nowadays many builders do not even mention carpet area at first and usually charge on the basis of built up area or super built up area.
Super built up area means built up area plus common areas proportioned to a unit checkout the illustration below.
If not continue reading to see how to calculate carpet area.
Focusing on the carpet area will help you understand the usable area in the kitchen bedroom living room etc.
As a rule of thumb the super built up area can be calculated by adding a loading factor to the carpet area which may vary from 15 to 50.
Carpet area is how much area in the room there is to put carpet in.
So if built up area is 1 000 sq ft it implies that 30 per cent i e.
The lower the factor the better it is for you as a customer as you get a higher carpet.