Bricks Vs. Cement Lock Blocks


Do you know the essential differences between bricks and cement lock blocks? They both offer many uses and applications, but which is best for your project?

The Basics

Cement lock blocks are usually large, solid or hollow, units made of cement and have an ability to lock into each other, somewhat like Lego. On the other hand, bricks are usually much smaller, typically solid, and made of clay.

Sizing Differences

There are no specific sizes for cement lock blocks, and they can come in a wide array of sizes. Common sizes for cement lock blocks include:

● 400 x 300 W x 200 H

● 400 x 250 W x 200 H

● 400 x 200 W x 200 H

● 400 x 150 W x 200 H

● 400 x 100 W x 200 H

The cement lock blocks are created by using steel moulds.

Bricks are usually comparatively smaller than cement lock blocks. The traditional size for bricks is 76mm high, 230mm long and 110mm wide. Clay bricks often have many slight variations due to the firing process.


Density is definitely a factor you should consider when choosing masonry for any project. The typical densities for cement lock blocks include 2100kg/m3, 1000kg/m3, and 550kg/m3, however these densities can vary drastically depending on the cement block you choose.

Solid bricks are usually 1900kg/m3 while perforated bricks commonly have a density of 1450kg/m3.

Applications For Cement Lock Blocks

Cement lock blocks have a wide use of applications, they are easy to use thanks to their locking abilities and offer many benefits such as increased insulation, strength and durability. Cement lock blocks are often used to retain walls and walkways but benefit from being used inside the home as well.

Applications For Brickwork

Brickwork has been used for centuries and bricks can be used in the construction of a wide variety of structures. The applications for brickwork and blockwork are in fact very similar and you’d need to look into the complexities of your project to choose between the two.

Looking for top quality concrete lock blocks? You’ll find them, as well as other concrete products, at Independent Concrete LTD.