Painting

Painting/white washing/colour washing of walls/ceiling including sunshades etc. shall be measured in sq m. Area can be suitably taken out from the corresponding plastering quantity that has been already calculated. Deduction shall be dealt in the same way as for plastering. Preparation of surface as cleaning, brooming, scraping, etc. shall be included in the item. 

Paintings for doors/windows or any wood work follow certain guidelines as it is rather time consuming to ascertain areas of small cuts, grooves etc. Coefficients are used to multiply the over all area of doors/windows/ventilators in order to arrive at the actual area of painting both faces. Table gives the painting coefficients that are normally adopted.

  Painting Coefficients

Coal tarring and varnishing etc. shall be measured similar to painting. 

Painting Corrugation 

Corrugated surface shall be measured for painting as flat and not girted in sq m and the quantity so measured shall be increased by the following percentages and 

the resultant shall be included in general areas. 

(a)  Corrugated steel sheets  - 14% 

(b)  Corrugated asbestos cement sheets  - 20% 

(c)  Semi-corrugated asbestos cement sheets  - 10% 

Painting Structural Sections 

Painting area for any structural sections is taken as follows : 

Painting area = length of the section x perimeter. 

The perimeter is calculated as given below : 

Angle = 4 times the size of the leg. 

(In case of unequal angles, sum of 2 times of each leg) 

Channel = 2 times the size of the web + 4 times the size of the flange. 

Beam = 2 times the size of the web + 4 times the size of the flange.