Correct Answer - Option 2 : It is measured as per drawing stating thickness. The description must include framework, finishing, curing, etc.
The principal of units of measurements normally consist of the following:
(i) Single units work like doors, windows, trusses, etc., are expressed in meter.
(ii) Works consisting of linear measurements involving length like cornice, fencing, handrail, band of specified width, etc., are expressed in running meters.
(iii) Work consisting of aeral surface measurements involve areas like plastering, whitewashing, partitions of specified thickness, formwork, concrete Jeffries, Damp proof course, curing, etc., are expressed in square meter (m2).
(iv) Work consists of cubical contents which involve volume like earthwork, cement concrete work e.g. R.C. chajja, masonry, etc., are expressed in cubic meter (m3).