7Solutions India commitment to support slab design services requirement to worldwide architectural, professional engineering, and contractor. Whether it is residential, industrial or commercial slab design, we understand the various types of flooring systems and can specify the most economical solution, given your unique requirements. A one-way slab is supported on four sides and has a much larger span in one direction than in the other may be assumed to be supported only along its long sides. It may be designed as a beam spanning in the short direction. For this purpose a 1-ft width can be chosen and the depth of slab and reinforcing determined for this unit. Some steel is also placed in the long direction to resist temperature stresses and distribute concentrated loads. The area of the steel generally is at least 0.20% of the concrete area.