Calculate the Blocks Required for a Wall

Hi there, folks! Today, we will see how we can find out the number of blocks required to build a wall. Calculating the number of blocks, like bricks of some kind, can be a little tricky, despite seeming simple. So, please follow this guide carefully.

Number Of Concrete Blocks In A Wall: There are a few strategies for figuring the number of blocks in a wall. In this article, I will disclose two straightforward strategies to discover absolute no. of blocks for a wall.

1. Surface area strategy.
2. Volume strategy.

Surface Area Strategy: Data you need

1. Surface area of the wall.
2. Surface area of a standard solid block.
3. Surface area of openings in the wall.

Step 1
Decide The Length and Height Of The Wall:
Let, the Length of the wall = 10 feet.
The height of the wall = 10 feet.

Step 2
Compute The Surface Area Of The Wall:
We know, Surface Area = Length x Height
∴ Surface area of the wall = 10 x 10 = 100 sq. feet.

Step 3
Compute The Surface Area Of Openings:

On the off chance that the wall has any openings, for example, entryway, windows and so forth, figure the surface area of openings.
Let the wall has a window of 3′ x 3′
∴ Surface area of the window = 3 x 3 =9 sq. ft

Step 4
Subtract The Surface Area Of Openings From Surface Area Of Walls:
∴ Final Surface Area of wall = 100 – 9 = 91 sq.ft.

Step 5
Figure The Surface Area Of A Concrete Block With Mortar Allowance:
Let the block is 16″ x 8″ x 8″ and mortar stipend is 1″
∴ Surface Area of one block with mortar = (16+1) x (8+1)= 153 inch²
= 153/12×12 = 1.0625 sq.ft

Volume Strategy: Data you need

1. Volume of the wall.
2. Volume of a standard solid block.
3. Volume of openings in the wall.

Step 1
Decide The Width, Height, And breadth Of The Wall:
Let, the width of the wall = 10 feet.
The height of the wall = 10 feet.
The breadth of the wall = 8″ = 0.67 feet.
(breadth of wall will be same as the breadth of one cement block)

Step 2
Figure The Volume Of The Wall:
We know, Volume = Width x Height x Breadth
∴ Volume of the wall = 10 x 10 x 0.67 = 67 cubic feet.

Step 3
Figure The Volume Of Openings:
In the event that the wall has any openings, for example, entryway, windows and so on, figure the volume of openings
Let the wall has a window of 3′ x 3′ x 0.67′
(breadth of the window will be same as the breadth of the wall)
∴ Volume of the window = 3 x 3 x 0.67 =6 cu. Ft

Step 4
Take away The Volume Of Openings From Volume Of Walls:
∴ Final volume of wall = 67 – 6 = 61 cu.ft.

Step 5
Compute The Volume Of A Concrete Block With Mortar Allowance:
Let the block is 16″ x 8″ x 8″ and mortar stipend is 1″
∴ Volume of one block with mortar = (16+1) x (8+1) x 8 = 1224 inch3
(The mortal will be given on the upper side and one side of each solid block)
= 1224/12x12x12 = 0.70 cu.ft

Step 6
Gap The Total Volume Of The Wall By Volume Of One Block:
∴ Number of blocks = Volume of wall/Volume of a block = 61/0.70 = 86
(assuming that 5% the of solid blocks will be wasted)
So the all out numbers of blocks required = 86 + (86 x 5/100) = 86 + 4 = 90.

Note: On the off chance that the wall doesn't have any initial skip Step 4, and simply divide the surface area of the wall by the surface area of one block.

Calculate the Blocks Required for a Wall