 # How many blocks does it take to build a house?

Construction

## Introduction

Homes are built from many components, including walls and pillars. These elements require a significant number of blocks to complete the project.

## How many blocks does it take to build a house?

It can take about 9380 blocks to build a 6-bedroom double-story house with third-floor space. The house would be about 4500 sqft. If you plan on building a larger house then the no. of blocks required would increase. Similarly, when you build a smaller house the no. of blocks required would suddenly decrease a lot. For e.g., if you build a double story 5 bedroom house on the square footage of about 2250 sqft. then the no. of blocks required would be about 3/4 of what the previous estimate was i.e about 6500 to 7000 blocks would be required in total. But if you then go on and build a single-story house in the same square footage then it will be about half of 6500 i.e. about 3250 blocks. So it all depends. You need to calculate the total wall area of your house and then divide it by the area of the block to get the no. of blocks required for the building. The actual formula to calculate the no. of blocks is :

Total wall area of one wall = Length of one wall x Height of one wall

Total wall area of all the walls = Sum of wall areas of all walls

The total area of one block = Length of one block x Height of one block = 16″ x 8″ / 12″= 10.67 ( I have given the size of the standard block here. If you are using different size blocks then you would need to calculate their area by multiplying their length and height. Do not use the depth of the block in this formula as it will give you false results).

Total no. of blocks required = Total area of all walls / Area of one block

Note: This is a rough method used by builders, contractors, and masons. To calculate the exact no. of blocks to the dot you should see this video. It explains the method to calculate the no. of blocks using volume which gives much more accurate results. It also discusses the space used by mortar. It is mostly used by civil engineers and is quite complex, but I have linked it here for completeness.

## How many blocks are needed for a wall?

The number of blocks required for a wall will be determined by the length and height of the wall.

For example:

• If you want to build a tall wall that is 8 blocks high, then you would need to use eight blocks as height. You would now need to calculate the length of the wall and divide the length by the length of a single block. The number obtained will then be multiplied by eight (8) to get the total number of blocks required for the wall.
• If you want to build a wall six feet high then you can just multiply the height of the wall by the length of the wall. The number obtained will then be divided by the area of a single block that you are using. This will give you the number of blocks required for the job.

## How many blocks can build a fence 50 by 100?

If the height of a standard fence is about 5 ft. then you would have to multiply 5 x 100 which comes out to be a wall area of about 500 sqft. For the second wall, the wall area would be 5 x 50 = 250 sqft. We now need to add both these areas twice which comes out to be 1500 sqft. If you divide this area by 10.67 which is the area of a standard block, you would get about 141 blocks which is the actual no. of blocks required to build such a fence. Don’t just multiply 50 x 100 and get 489 blocks as the answer as that would be wrong.

## How many Blocks are needed for a single-storey house?

In order to build a single-storey house, you need to have a total of 2700-3200 blocks. Each wall is calculated separately from the other and then added up together. The first step in calculating how many blocks are required for a single-story house is to determine how many walls will be needed:

The height of each floor (including any roof) should be measured at 12 blocks high. This is just a standard as this will give your ceiling a height of 10 feet from the ground.

Next, you will need to calculate the combined length of all the walls in the house. For example: If you had a room with 2 sides being 9×9 and 2 sides being 10×10 in length then you would add the length as 9+9+10+10= 38 feet.

Similarly, you will calculate the lengths in all the rooms and then multiply that by ten feet as the height of the house. Now you just need to divide this number by the area of a single block which I have already calculated above.

## How many blocks do I need to build a 3-bedroom house?

To build a three-bedroom house you would need about 2650-3250 blocks if you are building a single-story house with a square footage of 2250 sqft. If you plan on building a double-story house then the no. of blocks required would be about 6500. It is very often that people overestimate the no. of blocks required to build their house. This is mostly based on the false assumption, that blocks will break during construction, This is hardly the case. If you build by employing full-size and half-size blocks, which rarely occurs then you can significantly cut down on the breakage.

## How many blocks do I need for a 4-bedroom house?

For a four-bedroom house, the no. of blocks required would be about 6700. You may think this is the same as the three-bedroom house. This is very true. The no. of blocks required varies very little if you build an extra room. It takes about 100 extra blocks to build each wall of a room, give or take. If you increase the no. of rooms by one then you would only add 200 blocks to the total no. of blocks required. This is because you would only need to put two internal walls only to wall off space into an extra room.

## How do you calculate building blocks?

You use the following formulas. Be mindful to convert feet to inches and vice versa.

Total wall area of one wall = Length of one wall x Height of one wall

Total wall area of all the walls = Sum of wall areas of all walls

The total area of one block = Length of one block x Height of one block = 16″ x 8″ / 12″= 10.67 ( I have given the size of the standard block here. If you are using different size blocks then you would need to calculate their area by multiplying their length and height. Do not use the depth of the block in this formula as it will give you false results).

Total no. of blocks required = Total area of all walls / Area of one block

Note: This is a rough method used by builders, contractors, and masons. To calculate the exact no. of blocks to the dot you should see this video. It explains the method to calculate the no. of blocks using volume which gives much more accurate results. It also discusses the space used by mortar. It is mostly used by civil engineers and is quite complex, but I have linked it here for completeness.

## Concrete Block Calculator

It is very important to know how many blocks you require before embarking on any building project. To find out how many blocks you will need, use the block calculator. This tool helps you calculate your requirements and gives you an estimate of the cost of laying down each block in order to form a wall or a complete house.

## Conclusion

In conclusion, it is important to know how many blocks you will need for your project. This will help you save on costs and avoid delays caused by running out of materials midway through the construction process.

Find more articles similar to “How many blocks does it take to build a house?” here. For an article on the basic block dimensions check this.