Accurate estimation depends on reliable input data. Here’s what you need to collect:
1. Design Documentation
- Architectural plans, elevations, sections
- Structural drawings with reinforcement details
- MEP (Electrical, Plumbing, HVAC) drawings
- Detailed specifications for all materials
- Site plans and soil investigation reports
2. Market Data
- Current material rates from suppliers
- Labour rates in the region
- Equipment rental costs
- PWD rate schedule
- Historical data from similar projects
3. Site Conditions
- Soil bearing capacity and type
- Water table and drainage conditions
- Access roads and transport facilities
- Availability of skilled/unskilled labour
- Climate and seasonal considerations
Reference Standards
| Source | Use |
|---|---|
| BIS Standards | Material specs and quality |
| NBC/IBC Codes | Design standards |
| PWD Rate Books | Standard item rates |
| Historical Records | Past project trends |
