The structural behavior of 50 nano ferrocement slab specimens (500×500 mm) were made of nano cement mortar as developed in the present work varying thickness of the specimens, mix proportions and number of wire mesh layers and tested under central patch loads with all four edges simply supported and the central deflections were measured and it was concluded thatthe first cracking and ultimate loads increased by changing the mix proportion from 1:1 to 1:1.5, but the ultimate load is decreased by increasing the ratio of sand in mix proportion.