Note: For designing RCC beams, residential buildings typically use a slab thickness of 0.125 meters, a floor finish thickness of 0.055 meters, and a plaster thickness of 0.006 meters. The concrete strength (fck) is 20 MPa, the steel strength (fe) is 415 MPa, and the concrete cover is 35 mm. In contrast, commercial buildings use a slab thickness of 0.15 meters, a floor finish thickness of 0.075 meters, and the same plaster thickness. The concrete strength (fck) is 25 MPa, while the steel strength and concrete cover remain the same. Design is based on UDL and does not account for point loads. Do not use this for construction without consulting an architect and structural engineer.