Brick Dimensions: How to Choose the Best Brick Size

Brick dimensions are all the measurements that make up the size of a particular style brick. Brick dimensions include the depth, height and length of the brick. The size of the brick determines the aesthetic appearance of the brick and how the brick can be used. Manufacturers create some bricks for heavy structural support and some for support and decorative design.

brick dimmensions, sizes

The building industry measures bricks in inches or millimeters. These dimensions are helpful to ensure that certain bricks are consistent and compatible with construction projects. Understanding brick sizes is vital to the success of any project and is integral in determining the structural integrity, aesthetics, and overall performance of the brickwork.

Brick dimensions will vary by region, the type of brick, and the specific requirements of a project. So it is always important to verify the specific brick dimensions before you begin a project.

Common Brick Dimensions

We have measured these brick dimensions by depth, height, and length. Some brick manufacturers use the designation of thickness rather than depth, but this is the same measurement.

Brick StyleSize in inches (D x H x L)Size in millimeters (D x H x L)
Standard/Modular Brick3-5/8 x 2-1/4 x 7-5/892 x 57 x 194
Engineer Brick 3-5/8 x 2-13/16 x 7-5/892 x 71 x 194
King Brick3 -5/8 x 2 3/4 x 9 5/892 x 70 x 244
Queen Brick3-1/8 x 2-3/4 x 9-5/879 x 70 x 244
Jumbo Brick3-5/8 x 2-3/4 x 7-5/892 x 70 x 194
Roman Brick3-5/8 x 1-5/8 x 11-5/892 x 41 x 295
Norman Brick3-5/8 x 2-1/4 x 11-5/892 x 57 x 295
Utility Brick3-5/8 x 3-5/8 x 11-5/892 x 92 x 295

Brick Style Definitions

There are many types of bricks and each has distinct uses and shapes. Defining each style will help you to determine which brick will work best for your project.

  • Standard Brick – For most projects a standard brick, also called a modular brick, is a good choice. This is the most common brick type. Manufacturers construct this brick in reference to the size and number of the mortar joints between each brick. Units of standard bricks including the mortar lines can be easily calculated so that you can get a quick estimation of the size of the finished project.
  • Engineer Brick – This brick is similar in size to standard bricks in depth and length but is taller. Because of the increased height, builders can use these bricks to complete the final course or row of a wall.
  • King Brick – A king brick is larger than a standard/modular brick. Builders use king bricks when they want to minimize the number of mortar lines and joints in the structure. It is vital to verify the exact size as this brick size can vary according to the manufacturer.
  • Queen Brick – Queen bricks are smaller than standard bricks. Builders use these bricks for various applications including decorative brickwork where fine-tuning is essential. Be sure to check the sizes of particular manufacturers as the size for queen bricks may vary.
  • Jumbo Brick – Jumbo bricks refer to larger than standard brick sizes. There is not a universally standardized size for jumbo bricks, so they will vary according to region and manufacturer.
  • Roman Brick – Roman bricks are longer and wider but shorter in height compared to standard bricks. This size reflects the historic Roman bricks used in the ancient world. Builders use Roman bricks in restoration projects or for buildings that want to mimic a historic style.
  • Norman Brick – Norman bricks are common in Romanesque or Norman architecture that was prevalent in the medieval period. These bricks are larger than standard bricks and present a substantial appearance. These bricks may feature a rough texture, earthy color, and irregular shape. These are common for restoration projects or for buildings that have a historic appearance.
  • Utility Brick – Utility bricks are built for structural rather than aesthetic purposes. These bricks are used in non-visible places like foundations. Builders rely on them for their strength and durability.

The Significance of Standardized Brick Dimensions

Standardized brick dimensions are not just helpful for builders and structural engineers, they also help home builders succeed in DIY projects of all sizes and scopes. Use standard or modular bricks if you want this benefit as not all brick sizes are standardized.

Structural Integrity

Bricks are some of the heavy lifters in construction. Builders often use them to create load-bearing walls and structures. The regular dimensions of the bricks help to ensure the stability of the wall.

Compatibility and Interchangeability

Standard/modular bricks have the same size throughout each country. This means that standard bricks from different manufacturers will be the same size. Modular bricks make the construction process more efficient and reduce the need for customization.

Modular Benefits

For most projects, the builders are using bricks in a modular system where the bricks are stacked together to form a wall. A standardized size helps builders to estimate material needs, plan the time the structure will take, and build the structure easier. Repairs are also simplified with standard brick pieces that can replace damaged pieces of the same size.

Aesthetics and Design

Regular brick dimensions produce a certain aesthetic style. Builders use standard bricks to create visually appealing designs, textures, and architectural features. The regular nature of each unit does not distract from the visual appeal of the whole design.

How to Understand Brick Dimensions

Manufacturers, architects, and builders often list brick dimensions in different ways. This can be according to their specified dimensions, actual dimensions, and nominal dimensions.

  • Specified Brick Dimensions – This number refers to the size requirements that are specified by building codes, relevant standards, or project requirements. These are the desired brick size for a particular building and are referenced in architectural drawings and specifications. This brick size serves as a reference point for the design and construction process.
  • Actual Brick Dimensions – The actual brick dimension refers to the brick size formed, cut, and molded by manufacturers. This brick size will vary slightly from the specified brick dimensions because of manufacturing tolerances and material shrinkage.
  • Nominal Brick Dimensions – Nominal brick dimensions are the approximate size of the brick including the mortar joint. This allows builders to approximate the size of an entire wall including the mortar joints more easily.

Is a Modular or Non-Modular Brick Size Best?

Modular bricks, also called standard bricks, are created by manufacturers to make them easy to measure and group. Manufacturers create them so that a builder can fit the nominal dimensions of each brick section into multiples of four inches. Modular bricks are more versatile, cost-effective, and designed for structural integrity.

Non-modular bricks like queen bricks are designed with aesthetics in mind. These types of bricks do not have a standard size, but their unique sizes can create a more distinctive architectural style and visually appealing design. The size of non-modular bricks allows for the creation of custom patterns, curves, and decorative shapes that may not be possible with standardized bricks. These bricks are the best option for historical restoration or for building a home or structure with historical appeal.

Both modular and non-modular brick dimensions are useful. Consider factors like budget, structure style, construction techniques, and regional design before you decide. Talking with architects, engineers, and brick suppliers will help you to determine which size brick is best for your project.