Wealth of experience of experimental researches, designing and construction is accumulated in Russia for past century of use of reinforced concrete spatial structures. The significant number of unique buildings and the constructions created by talented Russian architects and designers are gone down in history of world architecture. During the Soviet period the big successes in development of typical precast wide-span spatial structures such as thin-walled shells and folded plates of reinforced concrete, ferrocement and steel fibre reinforced concrete for mass use in industrial construction have been achieved. Outstanding progress has been made in the field of the theory of analysis of spatial reinforced concrete structures. The stored experience of designing is realized in design standards for calculation and designing of reinforced concrete spatial roofs and floors of buildings. The history of development of the russian Design standards of reinforced concrete spatial structures and their current state is tracked in article. The detailed description of draft of the Russian Code of practice for designing of reinforced concrete spatial structures of roofs and floors is resulted.