Preliminary column sizing & reinforcement — Calculate axial capacity, slenderness, and steel as per IS 456:2000 & ACI 318. Square, Rectangular & Circular columns.
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Our Column Design Calculator provides preliminary column sizing and reinforcement estimates based on IS 456:2000 and ACI 318 standards. Supports Square, Rectangular, and Circular columns with axial load capacity, slenderness checks, and steel detailing.
IS 456 recommends minimum 200mm × 200mm for residential columns with 4 bars of 12mm Ø.
1-3% is standard. Below 1% is uneconomical, above 4% causes congestion.