RCC Quantity Calculator
What is a RCC Quantity Calculator?
What is RCC Quantity?
The RCC Quantity Calculator determines total concrete volume and embedded steel reinforcement weight for structural members (slabs, beams, columns, footings).
Formula
RCC Concrete Volume (m³) = Length × Width × Depth / Thickness
Estimated Steel Weight (kg) = RCC Volume (m³) × Steel Reinforcement Ratio (kg/m³)
Variables Explanation
- Member Dimensions: Length, width, and depth in meters.
- Steel Ratio Norms: Slab = 80 kg/m³, Beam = 100 kg/m³, Column = 130 kg/m³, Footing = 90 kg/m³.
How to Calculate
1. Select structural member type (Slab, Beam, Column, Footing).
2. Input dimensions in meters.
3. Input concrete grade (e.g. M20 or M25).
4. View concrete volume (m³), cement bags, sand, aggregate, and estimated steel rebar weight (kg).
Worked Example
RCC Column Batch: 10 columns, each 0.4m × 0.4m × 3.5m high.
Volume = 10 × (0.4 × 0.4 × 3.5) = 5.6 m³ Concrete.
Concrete Materials (M25): Cement = 62 Bags | Sand = 3.6 Tons | Aggregate = 6.8 Tons.
Estimated Steel (130 kg/m³ for columns) = 5.6 × 130 = 728 kg Steel Rebar.
Practical Construction & Project Controls Use
Preliminary structural BOQ preparation, multi-story building structural budgeting, and material reconciliation.
Understanding the Result
Provides combined concrete and steel bill of materials for structural frames.
Limitations & Assumptions
Steel density ratios are standard preliminary norms. Final structural fabrication requires detailed BBS drawing takeoffs.
Frequently Asked Questions
What is the standard steel requirement per cubic meter of RCC?
Typical structural norms: Slabs = 75-90 kg/m³, Beams = 90-120 kg/m³, Columns = 120-160 kg/m³, Retaining Walls = 80-110 kg/m³.
What concrete grade is recommended for RCC structural members?
Minimum grade for RCC structures under IS 456 / BS 8110 is M20; M25 or M30 is preferred for columns and high-rise frames.
How does RCC volume calculation differ from PCC?
RCC includes structural steel percentage and higher strength concrete grades, whereas PCC has zero steel reinforcement.
Does embedded steel displace concrete volume significantly?
Steel volume is very small (~1% to 2% of gross volume) and is ignored in gross concrete volume pours.
How do you estimate shuttering formwork area for RCC beams?
Formwork Area = [ Bottom Width + 2 × (Beam Depth - Slab Thickness) ] × Beam Length.