SLAB REINFORCEMENT IN INDIA AS PER IS 456-2000 Generaly slabs 2 types 1.One way slab : if slab L*B (4.5m*2m) larger span L (Ly=4.5m), shorter span B (Lx=2m) If Ly/Lx > 2 (one way slab) Ly/Lx = 4.5/2 =2.25 >2 so one way slab one way slab reinforcement on site HERE THE LINKS TO WATCH VIDEOS https://www.youtube.com/watch?v=u8e1h9sOuYw&t=32s https://www.youtube.com/watch?v=Ditg6akoI38 2.Two way slab: if slab L*B (4.5m*3m) larger span L (Ly=4.5m), shorter span B (Lx=3m) If Ly/Lx <= 2 (two way slab) Ly/Lx = 4.5/3 = 1.5 < 2 (two way slab) HERE SEE SOME PICS OF REINFORCEMENT OF TWO WAY SLABS WATCH It till the end https://www.youtube.com/watch?v=CjJETN1zJcY&t=16s https://www.youtube.com/watch?v=Ditg6akoI38