---
title: "Data required for rate analysis (building)"
subject: "Estimating and Costing"
chapter: 4
key: "semester_7/estimating_and_costing:rate-analysis-data-required"
source: https://www.bctengineer.com/q/semester_7/estimating_and_costing/rate-analysis-data-required
site: BCT Engineering
---

# Data required for rate analysis (building)

Estimating and Costing · Chapter 4: Analysis of Rates

- Asked in: 2082 Baisakh, 4 marks
- Answer checked by Claude Opus 5.5 (high effort) on 2026-10-14
- Page: https://www.bctengineer.com/q/semester_7/estimating_and_costing/rate-analysis-data-required
- Whole chapter: https://www.bctengineer.com/md/semester_7/estimating_and_costing/chapter-4

## Question

Write down the data required for analysis of rate for works related to building construction.

## Short answer

Data required are drawings and specifications, consumption norms, material rates at site, labour wages, lead/lift and transport cost, equipment hire and output, wastage allowances, overhead/profit/taxes, and site conditions such as height, season and working space.

## Answer

For rate analysis of building construction the following data are required:

1. **Drawings and specification** of the item: dimensions, thickness, mix proportion, grade and quality of materials.
2. **Norms (standard consumption)**: quantity of each material, number of skilled and unskilled labour days, and equipment hours per unit of work (DUDBC norms).
3. **Rates of materials** at the site: the District Rate of cement, sand, aggregate, bricks, steel, timber and so on.
4. **Rates of labour:** wages of skilled (mason, carpenter, plumber) and unskilled workers.
5. **Lead and lift** from the source to the site and the transport cost per unit and per km.
6. **Equipment** hire and running costs (mixer, vibrator, pump), with output.
7. **Wastage allowances** and conversion factors (for example dry volume of mortar and concrete).
8. **Overhead and profit** (usually 15%), taxes (VAT 13%), royalty and insurance.
9. **Conditions of the site**, such as height of work, the season and the working space.

## Check yourself

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

1. What do norms give?
   A. Market prices
   B. Site boundaries
   C. Tax rates
   D. Standard quantities of materials, labour days and equipment hours per unit
   Answer: D. Norms are standard consumption. (Key point: Norms)

2. Why are lead and lift needed?
   A. To compute transport cost from source to site
   B. To find mortar ratio
   C. To find wages
   D. To find tax
   Answer: A. Transport cost depends on lead and lift. (Key point: Lead and lift)

3. What overhead/profit and VAT are used?
   A. 5% and 10%
   B. 15% overhead and profit, 13% VAT
   C. 20% and 13%
   D. 15% and 5%
   Answer: B. Usual values. (Key point: Overhead and tax)

4. What are conversion factors example?
   A. Seismic zone
   B. Wind speed
   C. Dry volume of mortar and concrete
   D. Rainfall
   Answer: C. Dry volume factor converts wet to dry quantities. (Key point: Wastage)

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