This document provides calculations to estimate costs for excavation work, lean concrete, hardcore, and concrete work below the lowest floor level of a building. It includes:
1. Estimates for excavation costs to reduce level, excavate pits for pad footings and stumps, and excavate trenches for ground beams.
2. Estimates for costs of lean concrete and hardcore to lay binding screeds under pad footings, ground beams, and the ground floor slab.
3. Estimates material and labor costs to calculate unit rates for vibrated reinforced concrete for pad footings, column stumps, ground beams, and concrete beds at different thicknesses.
The calculations follow a consistent format of determining