Easy Way To Calculate Number Of Blocks Required For Building Construction In Nigeria

These below calculations are based on standard block sizes and building construction practices. Let’s use a simplified method to estimate the number of blocks you need.

Calculating the number of blocks required for building construction involves several steps.

This example uses a standard block size, typically 18 inches long, 6 inches wide, and 6 inches high in Nigeria. Remember, actual block sizes can vary, so adjust your calculations accordingly.

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Steps to Calculate Number of Blocks:

1. Measure Wall Dimensions:

– Measure the length and height of the wall(s) you plan to build. For this example, let’s say you have a wall that is 30 feet long and 10 feet high.

2. Calculate Wall Area:

– Multiply the length by the height to get the wall area in square feet.

– Wall Area = Length x Height = 30 feet x 10 feet = 300 square feet.

3. Calculate Block Area:

– Convert the dimensions of a block from inches to feet (18 inches = 1.5 feet, 6 inches = 0.5 feet).

– Block Area = Length x Height = 1.5 feet x 0.5 feet = 0.75 square feet.

4. Estimate Number of Blocks per Square Foot:

– Since each block covers an area of 0.75 square feet, you can estimate the required blocks per square foot of wall area.

– Blocks per Square Foot = 1 / Block Area = 1 / 0.75 = approximately 1.33 blocks.

5. Calculate Total Number of Blocks:

– Multiply the total wall area by the number of blocks per square foot.

– Total Number of Blocks = Wall Area x Blocks per Square Foot = 300 square feet x 1.33 = 399 blocks.

6. Consider Mortar and Wastage:

– It’s advisable to add an extra 5-10% of blocks to account for breakage, wastage, and cuts. For higher accuracy, especially for complex projects, considering 10% is safer.

– Additional Blocks = Total Number of Blocks x 10% = 399 x 0.1 = approximately 40 blocks.

7. Final Estimate:

– Add the additional blocks to your total.

– Final Estimated Number of Blocks = 399 + 40 = 439 blocks.

For a 30-foot-long and 10-foot-high wall, you would need approximately 439 blocks, considering a 10% allowance for wastage and mortar joints.

Remember, this is a basic calculation, and actual requirements can vary based on block size, mortar thickness, openings (like doors and windows), and specific construction methods. Always consult with a professional for precise estimates.