Calculation of Bricks and Blocks in the Wall

How to Calculate the Bricks and Blocks in the Wall

The bricks and blocks are the most used material in the construction work. They are mostly used for pavement and wall construction. In order to do brickwork in our house or on the construction site, 1 must need to know how to calculate the bricks and blocks required for this construction. An estimate of such calculation gives the brief idea of how much construction material is required before starting the construction. Calculation of Bricks and Blocks in the Wall.

Brick

It is the building material used in the walls, pavement, and masonry construction. Brick is prepared using clay-bearing soil, sand, lime, or concrete materials. Bricks have different classes, types, materials, and sizes. There are 2 basic categories of the bricks i.e. fire & non-fired bricks. In the building construction, about 70 % of the construction has been done using brickwork, that’s why it is the very important to learn brick calculation.

Basic Knowledge for the Brickwork  

1. The Cement-mortar ratio used for the brickwork must be between 1:2 and 1:6. For half wall (meaning wall having 4.5 inches of the thickness), the cement mortar ratio should be 1:4. While, for Nine -inch brickwork, and the cement mortar ratio should be 1:6.
2. The Cement mortar thickness between sides of the brick should be ten mm or a half inch.
3. The structural note of the brickwork should be read properly.
4. 1 cubic foot (1 ft³) contains 13.5 number of the bricks

Calculating the Bricks Required in a Wall

The required data for the calculating the bricks are:

1. Volume of the wall.
2. Details of opening in the wall.
3. Volume of the standard brick.

The procedure of the calculating the bricks are:

Volume of the Wall

1. Calculate the dimension of wall. The dimension of the wall includes length L, height H, and thickness W.
2. Multiply all dimensions with each other L x H x W. U will get the volume of the wall.

Volume of the wall V = L x H x W

Openings in the Wall

Examples of the openings in the wall are door and windows etc.

1. Calculate the volume L x W x H of the opening (door or window) in the wall
2. Subtract it from the volume of wall

V = Volume of wall – Volume of opening

Learn More

• Civil Engineering Basic Field Knowledge

Number of the Bricks

Since 1 cubic foot contains 13.5 bricks, we are going to multiply the volume of wall with 13.5.

No’s of the brick = V x 13.5

Example

Let’s take an example to calculate the number of the bricks required for the wall for better understanding.

Let assume the wall with following parameters with an opening of L = 2ft, H = Two ft

Wall parameters; L = Ten ft,             H = Ten ft         W = Nine inch or 0.75 ft

Solution:

The volume of wall is

Volume of the wall = L x H x W

Putting the values

Volume of the wall = 10 x ten x 0.75

Volume of the wall = 75 ft³

The volume of the opening

Volume of the opening = 2 x 2 x0.75

Volume of the opening = 3 ft³

Subtract the volume of the opening from the wall

V= Volume of the wall – Volume of the opening

V= 75 – three

V = 72 ft³

Now Multiple the volume with 13.5

No’s of the brick = V x 13.5

Putting the values

No’s of the brick = 72 x 13.5

No’s of the brick = 972 bricks

1 Brick Wall

The width of the 1 brick wall is Nine inches. The 1 brick wall requires 10.133 bricks per square foot.

Brick Calculation for 1 Brick Wall

1. Measure the length L of the wall
2. Measure the height H of the wall
3. Calculate the Area of the wall using H x L
4. Calculate the area of the opening and subtract it from the area of the wall.
5. Multiply the resultant area with number 133.

Taking an example;

A 1 brick wall with following parameter & openings

Wall parameter:                    H = ten ft         L = ten ft

Opening Parameter:          H = Two f t           L = Two ft

Solution:

Area of the wall

A = H x L

A = ten x ten

A = 100 ft²

Area of opening

Area of opening = two x 2

Area of opening = four ft²

Subtract the area of opening from the wall

A = Area of the wall – Area of opening

A = 100 – four

A = 96 ft²

Multiply Area with 10.133

No of bricks = A x 10.133

No of bricks = 96 x 10.133

No of bricks = 973 bricks

Half Brick Wall

Half Brick Wall or also known as a 4.5-inch brick wall because it has the width W of 4.5 inches. The Half brick wall requires 5.066 bricks per square foot.

Brick Calculation for the Half Brick Wall

• Measure the length L of wall
• Measure the height H of wall
• Calculate the Area of wall using H x L
• Calculate the area of opening and subtract it from the area of the wall.
• Multiply the resultant areal with number 066.

Taking an example

L = ten ft         H = ten ft

Area of the Half Brick Wall

A = ten x 10

A = 100 ft²

Multiply it with 5.066

No of bricks = A x 5.066

No of bricks = 506.6 bricks

1 and the Half Brick Wall

1 and the half break wall has a width W of 13.5 inches. In such wall, the required numbers of the bricks are 15.2 bricks per square foot.

Brick Calculation for 1 and Half Brick Wall

1. Measure the length L of wall
2. Measure the Height H of wall
3. Calculate the Area of wall using H x L
4. Calculate the area of opening and subtract it from the area of the wall.
5. Multiply the resultant area with number two.

Taking an example

L = ten ft         H = ten ft

Calculate the area of wall

A = ten x 10

A = 100 ft²

Multiply it with 15.2

No of bricks = A x 15.2

No of bricks = 1520 bricks

Blocks

Blocks are the construction material used in the walls, pavement & masonry construction. It is made using concrete cement, sand & aggregate. It has different sizes, types, and the materials but typically the blocks that have dimensions of 18 x eight x 4 inch³. Using such the block , the wall requires three blocks per cubic foot.

Nowadays it is frequently used in the construction that’s why it is important to learn blocks calculation.

Blocks Calculation Required in the Wall

The data required for the calculations of blocks being used in the wall are:

• Volume V of the wall
• Volume of the standard block
• Details of the opening in the wall

Volume of Wall

In order to calculate the volume of wall;

1. Calculate the dimensions of wall. The dimension of the wall includes length L, height H, and thickness or width W.
2. Multiply all dimensions with each other L x H x W.
3. The result is volume of the wall being constructed using blocks.

Openings in Wall

The openings in the wall refer to the door and windows etc.

1. Calculate the volume L x H x W of the opening (door or window) in wall
2. Subtract it from the volume of wall.

V = Volume of wall – Volume of opening

Number of the Blocks Required

After finding the volume of wall;

1. Since the standard block of dimension 18 x eight x 4 inch³ takes three blocks per cubic foot.
2. Multiply the volume with the number three.

Here is an example to calculate the number of the blocks required for a wall:

Let assume the wall

Wall parameters:       L = ten ft         H = ten ft         W = Nine inch or 0.75 ft

Opening parameters: L = two ft         H = two ft

Solution:

Volume of wall

Volume of wall = L x H x W

Volume of wall = 10 x ten x 0.75

Volume of wall = 75 ft³

Volume of opening

Volume of opening = L x H x W

Volume of opening = two x 2x 0.75

Volume of opening = three ft³

Subtract it from the volume of the wall

V = Volume of wall – Volume of opening

V = 75 ft³– three ft³

V = 72 ft³

Now calculate the number of the blocks

No’s of blocks = V x three

No’s of brick = 72 x three

No’s of brick = 216 blocks

Civil Engineering Tech

Thank You For Reading This Article.