---
title: "Factors in detailed estimation"
subject: "Estimating and Costing"
chapter: 2
key: "semester_7/estimating_and_costing:factors-detailed-estimation"
source: https://www.bctengineer.com/q/semester_7/estimating_and_costing/factors-detailed-estimation
site: BCT Engineering
---

# Factors in detailed estimation

Estimating and Costing · Chapter 2: Method of Estimating

- Asked in: 2078 Bhadra, 2 marks
- Video: [METHOD OF ESTIMATING - DETAILED ESTIMATE ( Estimation ,Costing , Contracting )](https://www.youtube.com/watch?v=qF2kZ1TUu1E) — Civil Positive
- Answer checked by Claude Opus 5.5 (high effort) on 2026-10-14
- Page: https://www.bctengineer.com/q/semester_7/estimating_and_costing/factors-detailed-estimation
- Whole chapter: https://www.bctengineer.com/md/semester_7/estimating_and_costing/chapter-2

## Question

State the different factors considered during detailed estimation.

## Short answer

Key factors include correct drawings and specifications, measured quantities per standard rules, current district rates for materials/labour/transport, site conditions (soil, water, access), construction method and season, overhead, profit, contingency, and taxes (VAT 13%).

## Answer

The main factors considered in a detailed estimate are:

1. Completeness and accuracy of the **drawings and specifications**.
2. **Quantities** of each item, measured by the standard rules of measurement and the correct units.
3. **Rates** of materials, labour and transport (lead), based on the District Rate and DUDBC norms.
4. **Site conditions**: soil type, water table, access, haulage distance and availability of water and labour.
5. **Method of construction** and equipment to be used.
6. **Time of construction** and season, which influence rates and productivity.
7. **Wastage allowances**, overhead, profit, contingency and **taxes** (VAT 13%).
8. Local rules, safety and environmental requirements.

## Check yourself

The answer's key points as multiple-choice questions, with the correct option and why.

1. Which factor affects accuracy most?
   A. Colour of paper
   B. Contractor's name
   C. Completeness of drawings and specifications
   D. Date of tender
   Answer: C. Quantities come from them. (Key point: Drawings)

2. Rates are based on
   A. Guesswork
   B. Last bill only
   C. Bank rate
   D. District Rate and DUDBC norms
   Answer: D. Standard sources. (Key point: Rates)

3. Which is a site condition?
   A. Soil type, water table, access
   B. VAT
   C. Mortar mix
   D. Format of BOQ
   Answer: A. Affects cost. (Key point: Site)

## Related in Estimating and Costing

- [Define project; irrigation project estimate](https://www.bctengineer.com/question.md?key=semester_7%2Festimating_and_costing%3Aproject-irrigation-estimate) — Estimating and Costing, chapter 5, asked 4×
- [Detail estimate report for sewerage project](https://www.bctengineer.com/question.md?key=semester_7%2Festimating_and_costing%3Aestimate-report-sewerage) — Estimating and Costing, chapter 5, asked 2×

## Related in other subjects

- [Factors in choosing a generator](https://www.bctengineer.com/question.md?key=semester_8%2Fpower_plant_design%3Agenerator-selection-factors) — Power Plant Design, chapter 4, asked 3×
- [Reservoir intake and site selection factors](https://www.bctengineer.com/question.md?key=semester_5%2Fwater_supply_engineering%3Areservoir-intake-site-factors) — Water Supply Engineering, chapter 5, asked 2×
- [Control cycle; quality control factors](https://www.bctengineer.com/question.md?key=semester_7%2Fproject_engineering%3Acontrol-cycle-quality-control-factors) — Project Engineering, chapter 4, asked 2×
- [Hydropower site selection factors](https://www.bctengineer.com/question.md?key=semester_8%2Fpower_plant_design%3Asite-selection-discharge-factors) — Power Plant Design, chapter 3