---
title: "Rate analysis: sal wood door/window frame per m³"
subject: "Estimating and Costing"
chapter: 4
key: "semester_7/estimating_and_costing:rate-sal-wood-frame"
source: https://www.bctengineer.com/q/semester_7/estimating_and_costing/rate-sal-wood-frame
site: BCT Engineering
---

# Rate analysis: sal wood door/window frame per m³

Estimating and Costing · Chapter 4: Analysis of Rates

- Asked in: 2082 Baisakh, 5 marks; 2078 Bhadra, 4 marks; 2065 Shrawan (old course), 7 marks (asked 3 times)
- Video: [Analysis of rate for Salwood for doors and windows| Estimation and valuation Board Exam Solution](https://www.youtube.com/watch?v=Kk2KkSbgQZo) — 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-sal-wood-frame
- Whole chapter: https://www.bctengineer.com/md/semester_7/estimating_and_costing/chapter-4

## Question

Prepare analysis of rate per cum of sal wood for door window frames.

## Short answer

For 1 m³ finished sal wood frame, use 1.1 m³ sawn wood (Rs 154,000), nails, preservative, 12 md carpenter and 6 md helper, then add 15% overhead and profit. Total rate = Rs 203,895 per m³.

## Answer

#### Basis
Rate per m³ of finished **sal wood door and window frames** (planed, joined, fixed and treated). The norm is: 1 m³ finished frame needs about 1.10 m³ of sawn sal wood (wastage in planing and cutting), carpenter 12 md and helper 6 md. Rates are **illustrative**: sal wood Rs 140,000/m³ (about Rs 4,000 per cft), skilled labour Rs 1,200/day and unskilled Rs 900/day.

#### Analysis (per m³)
| Description | Qty | Unit | Rate (Rs) | Amount (Rs) |
|---|---|---|---|---|
| Sal wood scantlings (incl. 10% conversion wastage) | 1.1 | m³ | 140,000.00 | 154,000.00 |
| Nails, screws, hold-fasts, bolts | 1 | L.S. | 2,000.00 | 2,000.00 |
| Wood preservative / primer | 1 | L.S. | 1,500.00 | 1,500.00 |
| Carpenter (skilled) | 12 | md | 1,200.00 | 14,400.00 |
| Helper (unskilled) | 6 | md | 900.00 | 5,400.00 |
| **Sub-total (materials + labour)** | | | | **177,300.00** |
| Contractor's overhead and profit | 15% | | | 26,595.00 |
| **Total** | | | | **203,895.00** |

**Answer: Rate of sal wood frames = Rs 203,895.00 per m³** (excluding VAT).

Check of the unit price: Rs 5,773.66 per cft.

## Check yourself

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

1. Why is 1.10 m³ of sawn sal wood taken per m³ of finished frame?
   A. Because sal shrinks 10% on drying only
   B. To include VAT
   C. To account for labour
   D. Wastage of about 10% in planing and cutting
   Answer: D. Planing and cutting waste about 10% of the timber. (Key point: Wastage)

2. What labour is taken per m³ of frame?
   A. 12 man-days carpenter and 6 man-days helper
   B. 6 carpenter and 12 helper
   C. 1 carpenter and 1 helper
   D. 12 carpenter and 12 helper
   Answer: A. Norm is carpenter 12 md and helper 6 md. (Key point: Labour norm)

3. What is the cost of the sal wood item?
   A. 140,000
   B. 1.1 x 140,000 = Rs 154,000
   C. 1.1 x 14,000 = 15,400
   D. 154,000 x 1.15
   Answer: B. Quantity 1.1 m³ at Rs 140,000/m³ gives 154,000. (Key point: Wood cost)

4. How is the final rate Rs 203,895 per m³ obtained?
   A. Sub-total 177,300 plus 13% VAT
   B. Sub-total 154,000 plus 15%
   C. Sub-total 177,300 plus 15% overhead and profit
   D. Sub-total 177,300 minus 15%
   Answer: C. 177,300 + 26,595 = 203,895. (Key point: Final rate)

## Related in Estimating and Costing

- [Building: PCC, brick, sal wood frame, RCC slab](https://www.bctengineer.com/question.md?key=semester_7%2Festimating_and_costing%3Abuilding-r-four-items) — Estimating and Costing, chapter 6
- [Rate analysis: 12.5 mm plaster 1:5, per m²](https://www.bctengineer.com/question.md?key=semester_7%2Festimating_and_costing%3Arate-plaster-12-5-1-5) — Estimating and Costing, chapter 4, asked 3×
- [Rate analysis: 20 mm plaster 1:4 per 100 m²](https://www.bctengineer.com/question.md?key=semester_7%2Festimating_and_costing%3Arate-plaster-20mm-1-4) — Estimating and Costing, chapter 4, asked 3×
- [Rate analysis: brickwork 1:6 per m³](https://www.bctengineer.com/question.md?key=semester_7%2Festimating_and_costing%3Arate-brick-1-6-upper-floor) — Estimating and Costing, chapter 4, asked 2×
- [Rate analysis: 12.5 mm plaster 1:3, per 100 m²](https://www.bctengineer.com/question.md?key=semester_7%2Festimating_and_costing%3Arate-plaster-12-5-1-3-ceiling) — Estimating and Costing, chapter 4
- [Rate analysis: M20 (1:1½:3) RCC per 10 m³](https://www.bctengineer.com/question.md?key=semester_7%2Festimating_and_costing%3Arate-m20-rcc-10m3) — Estimating and Costing, chapter 4

## Related in other subjects

- [Fixing of wooden door frames](https://www.bctengineer.com/question.md?key=semester_6%2Fbuilding_technology%3Adoor-frame-fixing) — Building Technology, chapter 6
- [Door/window parts; casement, awning, hopper](https://www.bctengineer.com/question.md?key=semester_6%2Fbuilding_technology%3Adoor-window-parts-casement) — Building Technology, chapter 6
- [Functions of door and window; battened door elevation](https://www.bctengineer.com/question.md?key=semester_6%2Fbuilding_technology%3Adoor-window-functions-battened) — Building Technology, chapter 6
- [Functions of openings; door and window types](https://www.bctengineer.com/question.md?key=semester_6%2Fbuilding_technology%3Aopenings-functions-working) — Building Technology, chapter 6