A rebar chair is a supportive tool used in construction to keep reinforcement bars (rebars) in the correct position within concrete structures like slabs, beams, and foundations. It consists of a base and supporting legs, which elevate the rebar to a predetermined height from the ground or formwork. This ensures that the rebar remains centered and maintains the required spacing while concrete is poured.Rebar chairs come in various designs and sizes to accommodate different construction needs and bar diameters. They are made from materials like plastic or metal, ensuring durability and resistance to corrosion. By using rebar chairs, construction professionals can ensure the even distribution of reinforcement within the concrete, enhancing structural integrity and load-bearing capacity. These simple yet essential tools play a significant role in maintaining the quality and longevity of concrete structures.