# How Much Sand Required for 100 Square Feet Plaster?

We require 4.9 cft sand and 49.5 kg or 1 bag of cement for 100 square feet plastering work considering 12 mm thickness of plastering layer and 1:4 ratio of mortar mix.

## Sand Required for 100 Square Feet Plaster (1:4 Ratio)

Here 1:4 mortar ratio is considered for plastering, in which 1:4 mortar ratio means 1 part of cement and 4 parts of sand. Also, we are considering thickness of plastering layer as 12 mm for 100 square feet area.

**1. Requirements for Plastering Work**

- Area of plastering = 100 sqf
- Mortar Ratio = 1:4
- Thickness of plastering layer = 12 mm
- Wastage factor and shrinkage factor = 1.54

**2. Wet Volume of Mortar for 100 Sqf Plastering Area**

Volume of Plastering Area

= Area of Plastering × Thickness of Mortar Layer

= 100 sqf × 12 mm

= 9.3 m² × 0.012 m

= 0.1116 m³

**3. Dry Volume of Mortar for 100 Sqf Plastering Area**

Dry volume of plastering material

= Volume of Plastering × Factor of Wastage and Shrinkage

= 0.1116 m³ × 1.54

= 0.171864 m³

**4. Quantity of Cement Calculation**

Quantity of Cement

= Dry Volume of Mortar × Density of Cement × (Proportion of Cement / Total Sum of Proportion)

= (0.171864 m³) × (1440 kg/m³) × (1/5)

= 49.5 kg (One bag cement)

**5. Quantity of Sand Calculation**

Quantity of Sand

= Dry Volume of Mortar × (Proportion of Sand / Total Sum of Proportion)

= 0.171864 m³ × (4/5)

= 0.1375 m³

= 4.9 cft

## Sand Required for 100 Square Feet Plaster (1:5 Ratio)

Here 1:5 mortar ratio is considered for plastering, in which 1:5 mortar ratio means 1 part of cement and 5 parts of sand. Also, we are considering thickness of plastering layer as 12 mm for 100 square feet area.

**1. Requirements for Plastering Work**

- Area of plastering = 100 sqf
- Mortar Ratio = 1:5
- Thickness of plastering layer = 12 mm
- Wastage factor and shrinkage factor = 1.54

**2. Wet Volume of Mortar for 100 Sqf Plastering Area**

Volume of Plastering Area

= Area of Plastering × Thickness of Mortar Layer

= 100 sqf × 12 mm

= 9.3 m² × 0.012 m

= 0.1116 m³

**3. Dry Volume of Mortar for 100 Sqf Plastering Area**

Dry volume of plastering material

= Volume of Plastering × Factor of Wastage and Shrinkage

= 0.1116 m³ × 1.54

= 0.171864 m³

**4. Quantity of Cement Calculation**

Quantity of Cement

= Dry Volume of Mortar × Density of Cement × (Proportion of Cement / Total Sum of Proportion)

= (0.171864 m³) × (1440 kg/m³) × (1/6)

= 41.25 kg

**5. Quantity of Sand Calculation**

Quantity of Sand

= Dry Volume of Mortar × (Proportion of Sand / Total Sum of Proportion)

= 0.171864 m³ × (5/6)

= 0.1432 m³

= 5.1 cft

So, we require 5.1 cft sand and 41.25 kg cement for 100 square feet plaster work considering 12 mm thickness of plastering layer and 1:4 ratio of mortar mix.