construction
17 June 2025
Written By Semen Merah Putih

How to Calculate the Needs of Red Brick, Complete & Easy!

How to Calculate the Needs of Red Brick

Knowing how to calculate red brick is important in the process of building a house. The right calculation will help you to budget more efficiently and ensure the right amount of material is needed.

Red brick is one of the most common building materials used to make walls because it is known to be strong, durable, and easy to find. However, without accurate calculations, an excess or a lack of materials can cause delays in the project.

So, how to do it correctly and practically? Find out the complete and easy tips for calculating red brick requirements, so that the construction project runs smoothly in this article!

How to Calculate Red Brick Needs Based on House Type

The number of red bricks needed can be different depending on the type of house to be built. Therefore, it is important to adjust the calculation so that the results are more accurate and in accordance with the needs in the field. Here's how to calculate the need for red bricks adjusted to the type of house.

1. House Type 36

Here is the formula for calculating the need for red bricks for type 36 houses:

1. Calculate the perimeter of the building wall.

  • A type 36 house measures 6 x 6 meters.
  • Use the perimeter formula: 2 x length + 2 x width
  • Perimeter = 2(6) + 2(6) = 24 meters.

2. Calculate the Wall Area.

  • Assume the height of the house is 4 meters.
  • Use the wall area formula: Perimeter × wall height.
  • Area = 24 m × 4 m = 96 m2.

3. Calculate the number of bricks needed.

  • Assume the requirement of red bricks is 60 seeds per square meter.
  • Multiply the wall area by the brick requirement per square meter.
  • Number of bricks = 96 m2 × 60 seeds/m2 = 5,760 red bricks.

So, to build a type 36 house with a size of 6 x 6 meters and a wall height of 4 meters, about 5,760 red bricks are needed. This number is obtained from the calculation of the total wall area, which reaches 96 m², assuming the need for 60 red bricks per square meter.

Read also: 9 Captivating Classic Red Brick House Design Inspirations

2. House Type 45

Here are the steps to calculate how many red bricks are needed per m2 in a type 45 house:

1. Calculate the Perimeter of the Building Wall

  • A type 45 house has dimensions of 6 x 9 meters.
  • Use the perimeter formula: 2 × length + 2 × width.
  • Perimeter = 2(6) + 2(9) = 12 + 18 = 30 meters.

2. Calculate the Area of a Wall

  • Assume the height of the wall is 5 meters.
  • Use the wall area formula: Perimeter × wall height.
  • Area = 30 m × 5 m = 150m2.

3. Calculate the Number of Bricks Needed

  • Assuming 60 bricks per square meter, multiply the wall area by the brick requirement per square meter.
  • Number of bricks = 150 m2 × 60 bricks/m2 = 9,000 red bricks.

In conclusion, the need for red bricks to build a type 45 house with a size of 6 x 9 meters and a wall height of 5 meters is around 9,000 red bricks. This calculation is based on a total wall area of 150 m² and an assumed requirement of 60 bricks per square meter.

How to Calculate Red Brick Requirements for Home Fences

Calculating the need for red bricks for home fences is important so that construction runs within budget and does not lose material. Here is a simple way to calculate the number of red bricks needed to build your fence.

1. Measure the Fence Area

The first step in calculating the need for red bricks for a home fence is to measure the volume of the fence by determining the length, width, and height of the fence. For example, the fence measures 12 meters long, 0.3 meters wide, and 1 meter high. 

The volume of the fence is calculated by multiplying the three measurements:

12 m × 0.3 m × 1 m = 3.6 cubic meters.

2. Calculate the Volume of Mortar Specs and Red Bricks

To calculate the volume of red bricks and mortar specs, add 1.2 cm of mortar thickness to the height of the bricks. For example, a red brick measures 21 cm x 10 cm x 5.5 cm, so the calculated height becomes 6.7 cm (5.5 cm + 1.2 cm).

The volume of bricks and mortar is calculated by multiplying the length, width, and height:

21 cm × 10 cm × 6.7 cm or 0.21 m × 0.1 m × 0.067 m = 0.001407 cubic meters.

Read also: 10 American-Style House Ideas, Pick Your Favorite!

3. Calculate the total number of bricks

After knowing the volume of the fence and the volume of one red brick, calculate the total red bricks needed by dividing both. The fence volume of 3.6 m³ divided by the volume of one red brick of 0.001407 m³ results in 2,558.63 or about 2,560 red bricks. This amount is used to make a fence with a thickness of about 30 cm.

The Importance of Calculating Red Brick Needs

Precisely calculating the need for red bricks is very important in construction projects. Without accurate calculations, projects can experience waste or material shortages that can delay the construction process. Here are some important reasons for calculating red brick needs:

  • Budget efficiency: Precise calculations help control expenditure by avoiding excess purchases so that the budget can be used optimally.
  • Material availability: Knowing the number of bricks required from the start ensures sufficient availability of materials and prevents delays due to stock shortages.
  • Avoiding shortages: Accurate calculations help maintain proper construction by preventing brick shortages that could affect the project schedule.
  • Prevents wastage: Ordering bricks as required prevents wastage of budget and storage space, and avoids unused leftover materials.
  • Ease of planning: A well-defined quantity of bricks makes it easier to plan logistics, deliveries, and coordination with suppliers and contractors to keep the project running smoothly.

That is a complete discussion on how to calculate the needs of red bricks that you can apply in the process of building a house or other construction projects. With the right calculations, you can avoid wasting materials and budget more efficiently.

However, calculating the number of bricks is not enough. To get sturdy and durable building results, you also need to choose high-quality building materials, one of which is cement.

One of the best recommended products is Semen Merah Putih Watershield. This cement is completed with water repellent technology that is able to protect concrete structures from water seepage, both from the ground, outside the building, and from moisture from indoors.

By using Semen Merah Putih Watershield, your walls and concrete structures will be stronger, more durable, and require minimal maintenance. This product is suitable for various needs, such as casting, masonry, plastering, skim coat, and making a concrete deck.

If you are planning a house construction or renovation, make sure to use quality materials from the start. Choose Semen Merah Putih Watershield for a maximum and durable result!

Contact us now for more information and realize your dream home with Semen Merah Putih!

Read also: All About Modular Homes: Types, Advantages, & Disadvantages

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