---
title: "Rate analysis: WC commode, high level cistern"
subject: "Estimating and Costing"
chapter: 4
key: "semester_7/estimating_and_costing:rate-wc-high-level-cistern"
source: https://www.bctengineer.com/q/semester_7/estimating_and_costing/rate-wc-high-level-cistern
site: BCT Engineering
---

# Rate analysis: WC commode, high level cistern

Estimating and Costing · Chapter 4: Analysis of Rates

- Asked in: 2082 Bhadra, 5 marks
- Video: [Analysis rate for supplying and fixing commode with cistern| Estimation and valuation Board Exam](https://www.youtube.com/watch?v=xKCcIaDTDC8) — OPengineer
- 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-wc-high-level-cistern
- Whole chapter: https://www.bctengineer.com/md/semester_7/estimating_and_costing/chapter-4

## Question

Prepare rate analysis for WC commode with high level cistern per number.

## Short answer

Supply and fix one WC commode with high-level cistern: materials and labour (plumber, mason, helper) total direct cost Rs 13,115. Adding 15% overhead/profit yields Rs 15,082.25 per number, excluding VAT.

## Answer

#### Basis
Rate for **supplying and fixing one W.C. commode (pan) with a high-level cistern** (cistern fixed at about 2 m above the floor, with a long flush pipe), complete with testing. Rates are **illustrative** (cement Rs 900/bag, sand Rs 2,500/m³, brick Rs 15, skilled Rs 1,200/day, unskilled Rs 900/day); norms follow DUDBC-style quantities.

#### Analysis (per number)
| Description | Qty | Unit | Rate (Rs) | Amount (Rs) |
|---|---|---|---|---|
| W.C. commode / pan (ceramic) | 1 | no. | 4,500.00 | 4,500.00 |
| High-level cistern (PVC/cast iron, 10-12 L) with bracket and fittings | 1 | no. | 3,500.00 | 3,500.00 |
| Flush pipe (32-40 mm) with bends and clamps | 1 | set | 900.00 | 900.00 |
| Cement (bedding and fixing) | 0.5 | bag | 900.00 | 450.00 |
| Sand | 0.03 | m³ | 2,500.00 | 75.00 |
| Bricks (bedding) | 30 | nos. | 15.00 | 450.00 |
| Screws, putty, misc. | 1 | L.S. | 300.00 | 300.00 |
| Plumber (skilled) | 1.2 | md | 1,200.00 | 1,440.00 |
| Mason (skilled) | 0.5 | md | 1,200.00 | 600.00 |
| Helper (unskilled) | 1 | md | 900.00 | 900.00 |
| **Sub-total** | | | | **13,115.00** |
| Contractor's overhead and profit | 15% | | | 1,967.25 |
| **Total** | | | | **15,082.25** |

**Answer: Rate of W.C. with high-level cistern = Rs 15,082.25 per number** (excluding VAT). The plumber's time is a little more than for the low-level type because of the longer flush pipe and the fixing at height.

## Check yourself

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

1. Where is the high-level cistern fixed?
   A. At floor level
   B. Under the pan
   C. Near the ceiling about 2 m above floor, with long flush pipe
   D. On the roof slab
   Answer: C. High-level means near ceiling. (Key point: High-level)

2. Why is plumber time 1.2 md?
   A. Larger pan
   B. Higher wages
   C. Tile cutting
   D. Longer flush pipe and fixing at height
   Answer: D. More work than low-level type. (Key point: Plumber time)

3. Overhead and profit?
   A. 15% of sub-total 13,115 = 1,967.25
   B. 13% VAT
   C. 10%
   D. 5%
   Answer: A. Added to sub-total. (Key point: Overhead)

4. Final rate?
   A. Rs 13,115
   B. Rs 15,082.25 per number excluding VAT
   C. Rs 14,691.25
   D. Rs 17,000
   Answer: B. 13,115 + 1,967.25. (Key point: Final)

## Related in Estimating and Costing

- [Rate analysis: WC commode, low level cistern](https://www.bctengineer.com/question.md?key=semester_7%2Festimating_and_costing%3Arate-wc-low-level-cistern) — Estimating and Costing, chapter 4, asked 5×