INSTRUCTIONS ON HOW TO CALCULATE THE NUMBER OF BRICKS FOR 1M2 OF WALL

INSTRUCTIONS ON HOW TO CALCULATE THE NUMBER OF BRICKS FOR 1M2 OF WALL

In construction, calculating the number of bricks needed for a wall is an important task to ensure accurate cost estimates and effective construction. The number of bricks depends on many factors such as brick size, wall type, and construction method. This article will guide you on how to calculate the number of bricks needed for 1m² of wall.

1. Factors affecting the number of bricks

• Brick size: Different brick sizes will affect the number of bricks needed. Larger bricks will reduce the number of bricks needed compared to smaller bricks.
• Brick type: Burnt bricks, unburnt bricks, lightweight bricks, and other bricks of different weights and sizes.
• Construction method: The method of building the wall (groove, block paving) can also affect the number of bricks needed.
• Mortar joint: The space between bricks created by mortar also affects the number of bricks needed. Large mortar joints will reduce the number of bricks needed.

2. Distinguish between 220 wall and 110 wall

Depending on the different purposes of use, the house wall will have different sizes and thicknesses. The most common are 110 walls and 220 walls:

• 110 walls are 110mm thick and are often used as partition walls between rooms, enclosing walls, and non-load-bearing walls. They have poor heat resistance, noise resistance, and moisture resistance.
• 220 walls, also known as load-bearing walls, are 220mm thick (2 layers of bricks stacked on top of each other). They are often used as load-bearing walls for houses. 220 walls have better heat resistance, noise resistance, and moisture resistance than 110 walls. The only disadvantage of 220 walls is that they are slow to construct, costly, and take up a lot of construction space.

So if you build a house using 220 walls, how many bricks will be needed for each cubic meter of wall? The calculation of bricks for this wall depends on the type of brick and the size of the bricks you use. There are many types of bricks on the market such as tube bricks, tile bricks, thread bricks, etc. Based on the type of brick and the size of the brick, you can accurately calculate the brick waste rate when building a wall.

Below is a table of brick and mortar rates for construction units. Based on this, you can determine how many bricks are needed to build 1m3 of 220 wall and how much material is needed for 1m3 of wall most accurately.

Table of brick rates when calculating bricks for building walls:

Tile rate lookup table:

Tile rate lookup table:

3.Calculate the number of bricks for 1m² of wall

Step 1: Determine the size of the tile Suppose you are using tiles measuring 200mm x 100mm x 75mm (20cm x 10cm x 7.5cm).

Step 2: Calculate the area of ​​a tile

Brick surface area = length x height

Brick area = 0.2 m×0.1 m = 0.02 m²

Step 3: Calculate the number of tiles for 1m² of wall

To calculate the number of tiles needed for 1m² of wall, divide the wall area by the area of ​​one tile.

Number of tiles=1m²/0.02m²=50 tiles

Step 4: Calculate the mortar joints

• If you calculate extra mortar joints (about 10mm), you need to adjust the tile size:

  • Grout tile size:

• Length: 0.2 m + 0.01 m=0.21m
• Height: 0.1 m + 0.01 m = 0.11 m

• Area of ​​brick with mortar joints: Area of ​​brick with mortar joint = 0.21 m×0.11 m=0.0231 m²

• Number of bricks required for 1m² of wall with mortar joints: Number of bricks = 1 m2/0.0231 m2 ≈ 43.29 bricks (rounded up to 44 bricks)

4. Calculate the number of tiles for different sizes

If you use different types of tiles, you just need to change the size and follow the same steps:

• 240mm x 115mm x 75mm tiles:
  • Tile area = 0.24×0.115= 0.0276 m²
  • Number of tiles = 1/0.0276 ≈ 36.23 tiles (rounded up to 37 tiles).
• 300mm x 200mm x 100mm tiles:
  • Tile area = 0.3×0.2=0.06 m²
  • Number of tiles = 10.06 ≈ 16.67 tiles​ (rounded up to 17).

5. Note when calculating

• Overhead: It is usually recommended to calculate an overhead of 5-10% to compensate for damaged, cut or other factors during construction.
• Accuracy: Check the brick size and construction method again for the most accurate calculation.
• Actual conditions: The actual number of bricks may vary depending on the specific construction conditions, so it is necessary to monitor and adjust when necessary.

Calculating the number of bricks for 1m² of wall is an important step in the construction planning process. With simple calculation steps and notes on influencing factors, you can easily determine the number of bricks needed for your project. Hopefully this article has provided you with a clear and useful view of brick calculation in construction!

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