Rectangular slab concrete
- Input
- Length 5 m, width 3 m, depth 0.15 m, quantity 1, wastage 5%.
- Method
- Multiply plan dimensions and thickness, then apply wastage.
- Formula
- V = 5 x 3 x 0.15 = 2.25 m^3
- Intermediate steps
- Wet volume = 2.25 m^3.
- Adjusted volume = 2.25 x 1.05 = 2.3625 m^3.
- Final result
- Order-planning volume is about 2.36 m^3 before supplier rounding.
- Interpretation
- Use this for preliminary quantity review, then check drawings and supplier yield.
- Limitation
- Does not include construction joints, overbreak, rework, or site batching tolerance.