What is the standard consumption of aerated concrete glue per 1 cubic meter?

With ideal block geometry and a seam thickness of 2-3 mm, the consumption is approximately 1 bag (25 kg) of dry mixture per 1 m³ of masonry. The calculator will help you calculate the exact value for your dimensions.

Why do you need a 10% reserve when buying glue?

The reserve compensates for losses when mixing the mortar, combing out irregularities with a grater, filling chips on blocks and trimming material along the edges of walls.

What is the correct seam thickness for foam blocks?

For high-quality autoclaved aerated concrete - 2-3 mm. For foam blocks with broken geometry, the seam can be increased to 5-10 mm to level out height differences.

Glue consumption calculator

For aerated concrete, foam blocks and silicate

Block dimensions (L × H × W), mm

Glue (mm)

Bag (kg)

Masonry volume

Enter masonry scale on the left
to instantly see glue consumption

Glue required:

0 bags.

Net consumption: -

With a margin (+10%): -

Calculated volume: -

👍 Optimal thin seam (saving glue)

Glue consumption calculator for aerated concrete and foam blocks

🧱 How to accurately calculate the amount of glue for blocks

When building a house from aerated concrete, foam blocks or thermal ceramics, it is important to purchase the dry mixture correctly. If there is not enough glue, you will have to stop construction; if you buy too much, it will petrify from humidity during storage.

Our online calculator converts the volume or area of your walls into a specific number of bags in seconds, taking into account the geometry of the block and the thickness of the seam.

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🚀 How to use:

Indicate the exact dimensions of one block in millimeters (L × H × W).
Set the desired thickness of the seam (for high-quality aerated concrete this is usually 2-3 mm).
Enter the weight of one bag of dry mixture (standard - 25 kg).
Indicate the general scale of work: cubes (m³) or squares (m²) of walls.

What is special about our calculation?

Inventory accounting: The algorithm automatically produces “net” consumption and recommended volume with a margin of +10%. The reserve is necessary to compensate for trimming blocks, uneven geometry and loss of mortar during mixing.
Versatility: The tool is suitable for any masonry material placed on a thin joint (gas silicate, foam concrete, polystyrene concrete, silicate block).

💡 Are you planning construction? Don’t forget to also calculate the amount of building material itself using our building block calculator.

Frequently asked questions (FAQ)

🔹 What is the standard adhesive consumption for aerated concrete?

On average, with ideal block geometry and a seam thickness of 2-3 mm, it takes about 1 bag (25 kg) per 1 cubic meter (1 m³) of masonry. Our calculator uses a basic standard: 1.4 kg of dry mixture per 1 liter of ready-made solution.

🔹 What seam thickness should I indicate?

For blocks of the 1st accuracy category (autoclaved aerated concrete), a 2-3 mm seam is recommended. This eliminates the appearance of “cold bridges”. If the blocks are crooked (handmade foam block), the thickness of the seam can reach 5-10 mm, which will increase the glue consumption several times.

🔹 Is it possible to use a calculator for cement mortar?

The algorithm is more tailored for specialized adhesive mixtures. Classic cement-sand mortar has a different density and is laid in a thick layer (10-15 mm), so it is better to use a separate brickwork calculator for it.