Sand Filling is a stage of building construction arrived once the building has reached the DPC Level. In Nigeria, the most common type of DPC is that which takes off after the first 4 blocks are laid on site.
It is at this level the construction team starts sourcing for filling sand.
Filling sand is bought from sand beaches, it is conveyed to your site by trucks, dumpers or tippers as they’re commonly called.
It is however very important that you as a builder, a contractor or client knows the exact volume of filling sand to buy for a project and that is why this is a very important article for you.
We’ll be using a 3 bedroom flat as a case study and i expect you to have gained an accurate knowledge on how to correctly carry out Filling sand calculation.
How to Carry Out Filling Sand Calculation
While a lot of estimators would use software and other means to estimate for filling sand, i love to do it manually because it helps me manage things properly, also, i have a lot of African Audience who may not have these software handy
Floor Plan 3 Bedroom 2 Bath 
So we have our floor plan uploaded.
Requirements for sand filling calculation
1. The floor plan of the building in question as this would help know the dimensions.
2. Sectional View of the building under Consideration
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Having the Sectional View makes it possible to know the prescribed or specified height of DPC
Let’s not forget the height of the wall for this project is 36 inches or 3ft or 914mm which is obtained by multiplying the height of block (9 inches) by 4 (Number of coaches)
Thus, 9 inch x 4 coaches of block = 36 inches
Next is to convert 36 inches to mm which is done by multiplying 36 by 25.4
Thus, 36 x 25.4 = 914.4mm
Now we know the depth of our sand fill as 914mm or 0.914 meters
Let’s proceed to calculate the total area that will receive the fill
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How To Estimate Area For Sand Filling Calculation
Section

Dimension (m)

Area (m^{2})

Volume (Area x 0.914) (m^{3})

Masters Bedroom

6.450 x 2.775

17.898

16.40

Kitchen

2.400 x 3.350

8.04

7.34

Varandah

2.500 x 1.200

3.00

2.74

Dinning

2.150 x 2.500

5.36

4.89

Sitting Room

3.675 x 4.150

15.25

13.94

Varandah

0.900 x 4.150

3.74

3.42

Room 1

3.600 x 3.125

11.25

10.28

Room 2

3.600 x 3.125

11.25

10.28

WC/Bath

1.400 x 2.000

2.80

2.56

Lobby

0.825 x 3.600

2.97

2.72

Total

74.54

Things You Must Know
Conclusion: Sand Filling Calculation For 3 Bedroom Flat
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