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.

Plastering calculation, cement plastering thickness

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
  9. Overhead & Profit

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.

plastering calculation formula

  • 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 cum 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 Cum.

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 Cum 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.

Hope you liked this article. Have a Good Day 🙂

Get the Excel Sheet – Rate Analysis of Plastering.

Author

Bala is a Civil Engineer who has more than 9+ Years of experience in planning & costing in Infrastructure. He is the author, editor of Civil Planets.

Write A Comment

error: Content is protected !!