Reinforcement Steel Calculator
Calculate precise steel reinforcement requirements for your construction project
Project Specifications
Enter your project specifications to calculate steel reinforcement requirements
Reinforcement Steel Guide for RCC Structures
Steel Grades in India
Fe 415 Grade
Yield strength 415 N/mm², most common for residential buildings
Fe 500 Grade
Yield strength 500 N/mm², higher strength, used in earthquake zones
Fe 550 Grade
Yield strength 550 N/mm², for high-rise and special structures
Bar Diameter Guide
Frequently Asked Questions
Q: How much steel required per sq ft in RCC slab?
For standard residential slab (M20 concrete), steel requirement is 8-12 kg per sq ft depending on slab thickness and span. For 6" thick slab: ~10 kg/sq ft. This includes main bars, distribution bars, and extra bars at edges.
Q: What is the current TMT bar price in India?
2024 TMT bar prices: Fe 415 grade ₹55,000-65,000 per ton, Fe 500 grade ₹58,000-68,000 per ton, Fe 550 grade ₹62,000-72,000 per ton. Prices vary by brand, location, and quantity. Metro cities cost 5-10% more.
Q: Which is better - Fe 415 or Fe 500?
Fe 500 is 20% stronger, allows using less steel (15-20% savings in quantity), mandatory in earthquake zones, costs only 5-8% more. Fe 415 is adequate for normal residential buildings in low seismic zones. For new construction, Fe 500 is recommended.
Q: How to calculate cutting length of reinforcement bars?
Cutting length = Clear span + (2 × Development length) - Bends + Hook allowances. Development length = 40d for Fe 415 and 47d for Fe 500 (where d = bar diameter). Add 10d for 90° hooks, 8d for 135° hooks. Our calculator does this automatically.