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What is an Engineering Brick?

There are many types of bricks available in the construction Industry which serve different purposes. One such brick is an engineering brick. Here are some of the questions Likestone Ireland are asked about Engineering Bricks.

What is the purpose of an Engineering Brick?

Engineering bricks are specifically made to improve the technical and structural performance of a wall or building. They are more useful from a practical point of view rather than to improve the look of a building.

Can you use Engineering Bricks as facing Bricks?

Generally, engineering bricks are not used for their aesthetic value but rather for their compressive strength and low water absorption. A natural clay brick slip is a better alternative for a facing brick or a brick veneer.

What are the applications of Engineering Bricks?

Traditionally, Engineering bricks are used where in construction where strength and resistance to water and frost attack are important. Some common application examples are: retaining walls, damp proof courses, manholes, sewers and general ground works.

Brick Sewers

Brick Sewers

What is the difference between Class A and Class B?

There are 2 different classes of Engineering bricks, Class A and Class B.

Class A engineering bricks have a compressive strength greater than 125N/mm² and water absorption less than 4.5%.

Class B engineering bricks have a compressive strength greater than 75N/mm² and water absorption less than 7%.

What do Engineering Bricks look like?

Engineering Bricks have a smooth finish with perforations through the top to the bottom. They are widely available in blue or red and are identifiable by their uniform shape.

Where can I buy Engineering Bricks?

Engineering bricks can be purchased through Likestone Ireland. Please email us with your specification at or alternatively, give us a call on 051 833163