In an earlier post, we had discussed the cost estimation for different construction activity. Now, we are going to see the rate analysis for plastering.

Before analysis, understand the general aspects of Rate analysis of civil works.

Contents of the Article

## Plastering Rate Analysis Basis

The following points have to be considered while analyzing the rate.

1. Wages for the manpower including their transportation
2. The output of the Manpower – Labour Output per day
3. Required material including wastage
4. Power consumption
5. Water consumption
6. Supervision charges
7. Tools & Equipment
8. Contingencies

## Example Calculation

Lets us assume that we need workout rate analysis for 10 Square metre area of inner plastering work.

From the mortar mix ratio (as per IS standard), the required mortar ratio is 1:3 and thickness is 15mm

STEP 1 – Mortar Mix Material Calculation

We have detailed the calculation in our plastering work calculation post.

• Required Volume of Cement = 1/4 x 1.55 (void ratio ) x Mortar Volume  = 1/4 x 1.55 x (10*0.015) = 0.058 m3 or 1.67 Bags
• Required Sand Volume = 3/4 x 1.55 (void ratio) x Mortar Volume = 3/4 x 1.55 x (10*0.015) = 0.174 m3

So we need Cement – 1.67 Bags  and Sand – 0.174 m3.

STEP 2 – Required Manpower

From our Labour output per day assumption

For 10 sq.m of Plastering, we need

• Mason – 1 Day
• Helper – 1.2 Day
• Water Man – 0.1 Day

## Detailed Plastering Rate Analysis Table

 Description Unit Qty Rate Amount MATERIALS Cement Bags 1.63 350 571 Sand m3 0.174 1500 261 MANPOWER Supervision Day 0.05 800 40 Mason Day 1 700 210 Helper Day 1.2 600 720 Waterman Day 0.1 450 45 Subtotal 2,337 Tools & Tackles 1% 23 Power Consumption 2.50% 58 Adding Sundries & Contingencies percentage 3% 70 Adding Overhead & Contractor profit percentage 10% 234 Total 2722 Price per Square metre 272

The required manpower will differ based on the nature of the work such as plastering thickness, working height etc.