# 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 inch?
= 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. 