Cement plaster 1:4 upto 20' (6.00 m) height:” a) 3/8" (10 mm) thick"Cement plaster 3/8"" (10 mm) thick under soffit of R.C,C. roof slabs only, upto 20' height. c) 1:4""Filli ng, watering and ramming earth under floors:- (i) with surplus eartii from foundation, etc. (ii) with new eartii excavated from out side, lead upto one chain (30m)"Extra for every 50 ft, (15 m) additional lead or part thereoi) for earth wori< soft, ordinary, hard and very heard (up to 1000 ft)