Steel Reinforcement & Structural Steel
Reinforcing bars and structural steel sections whose weight is computed from nominal dimensions and the density of steel (~7850 kg/m³). Unit weights for standard bars follow published tables (e.g., d²/162 kg/m for round bars in mm).
Engineering Application
Reinforcement tonnage takeoff for slabs, footings, columns, and walls; structural steel member weight for procurement and fabrication. Weight and quantity outputs feed BOQ and logistics.
Key Parameters
| Parameter | Unit |
|---|---|
| Bar diameter | mm |
| Unit weight | kg/m |
| Steel density | kg/m³ |
Related Engineering Tools
Rebar Weight Calculator
Compute theoretical rebar steel weight per meter and total tonnage from bar diameter and lengths.
W = d² / 162 (kg/m, d in mm) Rebar Quantity Takeoff Calculator
Estimate number of reinforcement bars required for slabs and walls based on spacing and cover.
Bars = ⌊(L - 2c) / s⌋ + 1 Steel Weight Calculator
Compute structural steel and reinforcement weight for plates, bars, pipes, and standard sections using steel density.
W = V × ρ_steel (ρ ≈ 7,850 kg/m³) Construction Material Quantity Takeoff Calculator
Quantity takeoff for bulk construction materials with wastage: aggregate, sand, cement, and general volume-mass conversions.
Q = V × (1 + wastage/100) · m = Q × ρ