# How To Calculate Cement, Sand Quantity For Plastering

|## How To Calculate Cement, Sand Quantity For Plastering?

Following points should be remembered while calculating the quantity of cement, sand for plastering work.

1. For wall plastering, Cement : Sand = 1 : 6

2. For ceiling plastering, Cement : Sand = 1 : 4

3. Thickness of plaster should be in between 12-15 mm. If an additional coat is required then do not do it at one go.

4. Use good quality of cement & Sand.

5. Use measuring box (not head pan) for site mix.

We will calculate cement and sand for 100 m^{2} plastering area in 1:6 ratio and thickness of 12 mm.

**Cement Mortar Required:**

Plastering thickness = 12 mm

= 12/1000 = 0.012m

Volume of cement mortar required = ( Plastering Area x thickness )

= 100 m^{2 }x 0.012m = 1.2 m^{3}

(This is wet volume of cement mortar (after mixing water) but we need dry volume. To get dry volume consider 35% bulking of sand and 20% wastages

= 1.2 m^{3 }x (1+0.2+0.35) (Rather than 35% sand bulkage and 20% wastage you can add 1.54 as constant)

= 1.86 m^{3}

Cement : Sand = 1 : 6

Sum of ratio =( 1 + 6) = 7

**∴ Cement required**

= 1.86 x 1/7

= 0.265 m^{3 }

= 0.265/0.0347 ( 0.0347 m3 = 1 bag = 50 kg cement)

= 7.66 bags (≈ 8 Bags)

**∴ Sand required **

= 1.86 x 6/7

= 1.59 m^{3}

Here we have calculated in Sq.m but you can also calculate it in Sq.ft.

##### Also Read – How To Calculate No. Of Bricks In A Wall.

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- Specification Of Plastering
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which type of cement is preferred for wall cementing and why?

Good knowledge for plastering work

Sir how to calculate quantity of the plaster area is 2.75*2.65 and pls translate in sqm

How to calculate quantity of gypsum plaster ??

= 1.2 m3 x (1+0.2+0.35) (Rather than 35% sand bulkage and 20% wastage you can add 1.54 as constant)

.20 wastage

.35 bulkage

1 = ???? Can u explain me sir

Nice preparation

What is 1 in 1+0.35+0.20

we find 1 cum mortar quantity thetas why we use 1

total calculation is (1+0.35+0.20)= 1.54 (constant)

Sir notes hindi lanuage me Diya kro

Sir how to quantity of cement and sand of plastering area 30’*30′

hello,

where did you get 1.86? explain me.