Floor slabs are divided into several groups depending on the materials from which they are made or the method of execution. Floor slabs are mostly made of concrete, especially reinforced concrete, which is characterized by better durability and resistance to certain loads. First, the reinforcing cage is defined, composed of steel rods and meshes, which are formed in an already placed mold. After placing the reinforcement in the mold, concrete installation and final processing follow. The division of reinforced concrete floor slabs mainly refers to the division of the performance of expansion joints. There are different methods of execution depending on the material in question or the position of installation of the expansion joints. With expansion joints, there are many problems that have a detrimental effect on the panels themselves, for this reason, a specific version of reinforced concrete floor panels has been developed, which are panels without expansion. Their performance is based on the adequate preparation of the substrate, the definition of the plastic network consisting of plastic pipes and four-way connectors, after which the reinforcement network is installed and concrete is installed. With a plastic net measuring 1x1 m, microcracks are created in the concrete itself, and thus the concrete slab is divided into squares, which enable easier load transfer. The characteristics of the INB 06 system are that the consumption is lower, the installation is faster and the system is more functional compared to the classic design of floor slabs.