Specific weight of brick and how it changes by type

Brick is one of the most common building materials. It is an artificial stone made from mineral raw materials: fired clay, a silicate mixture based on sand and lime, or special refractory compositions.

Brick is popular because of its main properties:

• high strength;
• resistance to moisture;
• frost resistance;
• durability;
• availability and clear masonry technology;
• convenient weight for most construction work.

Weight depending on brick type

Brick weight depends on raw material, density, size and the presence of voids. A solid brick is always heavier than a hollow one of the same dimensions, because part of the volume in a hollow product is occupied by air cavities.

Red ceramic brick can be solid, hollow or facing. A single solid brick often weighs about 3.3-3.6 kg, a hollow one about 2.3-2.5 kg, and facing products may be lighter because of smaller thickness or voids.

Fireclay and refractory brick is usually heavier than ordinary ceramic brick because it is designed for high-temperature use and has higher density. It is used in stoves, fireplaces, fireboxes and other structures where fire resistance is important.

Sand-lime brick is made from a sand-lime mixture. It often has high density and mass. A single solid sand-lime brick may weigh about 4-4.3 kg, but the exact value depends on format and void content.

White brick in construction calculations usually means sand-lime brick. Its weight depends on whether the product is ordinary, facing, solid or hollow: the ordinary solid version is heavier, while hollow and facing products may be noticeably lighter.

When calculating masonry rather than a single brick, mortar weight and joint thickness must also be included. Therefore the weight of brick masonry usually differs from the reference weight of 1 m³ of brick itself.

Table 2: brick weight values

The values below are approximate weights for one brick. They are useful for quick estimates, but purchasing, masonry and logistics calculations should use the actual manufacturer’s data.

Bulk weight and specific weight of bricks

The bulk weight of brick depends on the structure of the material. Solid brick has a higher value, while hollow and porous products have a lower one. The average bulk weight of solid brick may be about 1800 kg/m³, while porous and hollow products are noticeably lighter.

When calculating masonry, it is important to consider not only the weight of the brick itself, but also mortar, material moisture, masonry type and number of joints. For accurate construction calculations, it is better to use manufacturer data for the specific brick and project standards.