1. Max. transverse spacing of stirrup legs = 2d/3 and 800 mm 2. Min. reinforcement Av,min = 0.06 b.f'c0.5/ fy= 3. Max. stirrup spacing: s = a). s = d b). 300 mm or 0.35 d for vf > 0.125(0.6) f'c c). 600 mm or 0.7 d for vf <= 0.125(0.6) f'c 4. Standard hooks: a). 90 degree hook: = 6ds and 60mm b). 135 degree hook: = 4 ds and 20mm c). Lap spliced stirrups = 1.3Ld