# How to Calculate Cement, Sand Quantity for Plastering?

## Mortar Calculation for Plastering work

__Point Should Be Know Before Estimating __

__Point Should Be Know Before Estimating__

**Density of Cement ** = 1440 kg/m3

**Sand Density ** = 1450-1500 kg/m3

**Density of Aggregate **= 1450-1550 kg/m^{3}

**How many KG in 1 bag of cement** = 50kg

**Cement quantity in litres in 1 bag of cement ** = 34.7 litres

**1 Bag of cement in cubic metres ** = 0.0347 cubic meter

**How many CFT (Cubic Feet) ** = 1.226 CFT

**Numbers of Bags in 1 cubic metre cement** = 28.8 Bags

**The specific gravity of cement** = 3.15

**Grade of cement **= 33, 43, 53

**Where** 33, 43, 53 compressive strength of cement in N/mm^{2}

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**Area of brick wall for plaster** = 3m 3m =9m^{2}

Plaster Thickness = 12mm (Outer-20mm, Inner 12mm)

Volume of mortar = 9m2 x 0.012m = 0.108m3

Ratio for Plaster Taken is = 1 : 6

Sum of ratio is = 7

**Calculation for Cement Volume**

Dry Volume of Mortar = 0.108 x 1.35 = 0.1458 m^{3}

**Cement**= (1/7) x 0.1458 = 0.0208 m^{3 }

*Density of Cement is 1440/m ^{3}*

= 0.0208 x 1440 = **29.99 kg**

We know each bag of cement is 50 kg

= (29.99/50) = **0.599 Bags**

**Calculation for Sand Volume**

**Sand** = (6/7) x 0.1458 = 0.124m^{3}

*The density of Sand is 1450/m ^{3}*

= 0.0208 x 1450 = **181.2 kg**

Now we find how many CFT (Cubic feet) Required

* As we know that 1m ^{3} = 35.31 CFT*

= 0.124*35.31

** = 4.37 CFT (Cubic Feet)**

**Download Excel sheet Calculator For Plastering **

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CALCULATOR FOR STEEL QTY

good

Nice one i really learn something crucial here..

excellent, sir

awesome

thank you

The calculation is amazing; it quiet comprehensible, I really appreciate. Thanks.

How to calculate the steel? Steel calculation formula =( d×d)/164 . Example suppose d= 8mm , sol = 64/164= 0.392 . Any doubts please contact

Calculation for steel

Unit weight = d^2/162

d = dia of bar

And total qnty = Nxd^2/162xL

L= length of bar

N=nos of bar

For steel calculation length of bar and shape of bar bar bending schedule knowledge

What is 164

Why multiplying 1.35 in dry volume calculation

Author, can you please answer how you got 1.35?

How much cement bags will be used for 20 cum plaster area

Download my Excel sheet

Please Specify 1.35

I want to know how to calculate the plasterwork of a round shape, repairing work type?

Just put, Area of circle

You have explained it very easily.

Step by step, Materials volume calculations and how to convert volume requirements to weight.

Thanks for everything

sand calculation wrong ( 01.24*1450) you mentioned ( 0.0208*1450)

0.124*1450

Why 1450, cement density is 1440

How to calculate primer/paint/putty requirement for brick walls

chec sand volume.it should be 0.124.not 0.0208

Love this calculations

There’s wrong in the last part of this calculation that’s instead of putting 0.124cubic meter of sand

you put 0.0208cubic meter which is the one of cement

Dear, Plaster Area, Calculation is good. Kindly Note that you have not considered the Wastage Factor, which is normally 10 %. Thank You.

Yes, I will update

Please specify 1.35?

we always calculate material quantity in dry formate so we take 34 % more than wet volume,

This is a great tutorial! I have been trying to calculate the cement and sand quantity for plastering for a while now and this has been a great help!

This is a great tutorial! I have been trying to calculate the cement and sand quantity for plastering for a while now and this has been a great help!

Thank you if this help you