The construction of the house is quite expensive and burdensome. After all, the house is not only walls and foundation, more ceilings, external and interior decoration, roof, and much more. For a long time, logs are used as bearing beams, and in modern construction, reinforced concrete beams. Plus wooden beams is accessibility, while they have high strength. However, wood is not able to withstand the loads that supporting beams are now exposed. Therefore, most ceilings, now, are made on the basis of reinforced concrete. This is a fairly strong building material that can withstand significant loads. And reinforced concrete floors are absolutely flat, which reduces the cost of their plastering. The main drawback of reinforced concrete slabs is that they are quite heavy and need fairly strong bearing walls. Hollow reinforced concrete slabs are significantly lighter than cast whole reinforced concrete structures. And besides, hollow railway slabs absorb the sound much better and they have a certain level of thermal insulation. According to the method of installation of reinforced concrete, the overlapping is divided into prefabricated and monolithic, there are also prefabricated monolithic reinforced concrete structures. Collective reinforced concrete ceilings are fairly simple designs made using strictly designated technology in factory conditions. Their installation is carried out at the place using lifting mechanisms. Monolithic reinforcements are made on the basis of reinforced concrete, however, at the place of installation. This technology is used when it is necessary to make an individual floor design, one that cannot be done in the conditions of the factory. The main condition for their manufacture is the presence of open reinforcement at the load -bearing ends of the plate, necessary for attaching other structural elements to it.