Lyla Lindsey
Bricks are a popular building material due to their strength, durability, and aesthetic versatility. They are used in a variety of construction projects, from residential to commercial buildings. The standard size of a house brick in Australia is 76mm high, 230mm long, and 110mm wide. This size is known as the normal face brick and is commonly used for external walls. Bricks provide a safe and durable foundation for structures, making them a cost-effective option.
| Characteristics | Values |
|---|---|
| Height | 76mm |
| Length | 230mm |
| Width | 110mm |
| Thickness | 4.5cm |
| Brick course | 86mm |
| Mortar thickness | 10mm |
| Number of bricks per square metre | 50 |
| Average ceiling height | 25 courses or 25 bricks (2143mm) |
| Use | Walls, buildings, houses, commercial structures, multi-story apartment complexes, industrial buildings |
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What You'll Learn
Standard brick size in Australia
The standard brick size in Australia is 76mm high, 230mm long, and 110mm wide. This is known as the normal face brick, which is typically used for external walls. This brick size is designed to be easily held in one hand and provides structural integrity and reliability.
The standard brick size ensures that walls are constructed with even spacing and just enough mortar to fill the gaps. It is also widely available in common construction and home improvement stores. The mortar between bricks is typically 10mm thick, allowing for standard-sized doors and windows to fit without alterations.
While the standard brick size is commonly used, there are multiple brick sizes in Australia, and the specific size used depends on the type of brick and construction project. For example, internal walls in a double brick home may use larger bricks than those used for external walls.
Additionally, brick dimensions can vary slightly due to manufacturing processes and local building regulations. Despite these variations, the standard brick size in Australia generally adheres to the dimensions of 76mm in height, 230mm in length, and 110mm in width.
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Standard brick size for walls
The standard brick size for walls in Australia is 76mm high by 230mm long by 110mm wide. This is also known as the normal face brick and is the most common brick used for external walls. Face bricks are durable and hard-wearing, and they can withstand extreme Australian temperatures without the need for cement rendering.
There are multiple brick sizes in Australia, depending on the type of brick and construction. For example, internal walls in a double brick home generally use a larger brick compared to the external face brick. The size of the brick is important when constructing a wall, as it determines the spacing and amount of mortar needed to fill in the gaps.
Mortar between bricks for a clay brick wall should be close to 10mm thick, allowing for proper adhesion between the rows of bricks and creating stability in the structure. This thickness also ensures that standard-sized doors and windows can fit into the brickwork without alterations.
When installing a brick wall, it is important to start with a level and straight bottom course. The brick size chart provides guidelines on laying bricks for walls, but the specific course and style may vary depending on personal preferences.
Bricks are a popular building material due to their strength, durability, and aesthetic flexibility. They are also versatile and can be used in any style of house.
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Mortar thickness between bricks
In Australia, the standard size of a house brick is 76mm high, 230mm long, and 110mm wide. When laying bricks, the mortar thickness between them should be close to 10mm (1cm) thick. This is to allow for proper adhesion between the rows of bricks and to create stability in the structure. Thicker mortar joints result in lower masonry strength and can collapse during the building process. In addition, thicker joints can be a waste of mortar, increasing the cost of the project without any added benefit.
There are strict building codes associated with mortar thickness in most countries and states. Generally, the allowance is about 1-2mm on either side of the target 10mm mortar size. It is important to ensure that the mortar is not too stiff when laying bricks. A small visible gap should always be left between the bricks, and the mortar should be workable.
In some cases, mortar joints that are 15-20mm thick may be acceptable, especially for foundation blocks. However, it is generally recommended to aim for a thinner mortar joint, as this is better for structural stability. Mortar gaps in pointing should ideally be a maximum of 10mm, as anything larger can affect the structure's stability and may make damp more likely.
When calculating the number of bricks needed for a project, it is important to consider the surface area that needs to be covered and the number of bricks required per square metre. Including mortar, there are approximately 48.5 standard-sized bricks per square metre, but professionals typically calculate 50 per square metre to allow for breakages and wastage.
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Grading of bricks
Bricks are selected based on their exposure and the type of application. Factors that go into the selection include durability, load capacity, and appearance. The Brick Industry Association recommends using different brick grades based on region and exposure.
Brick grades indicate a brick's durability when exposed to moisture and freezing. There are three factors that help determine brick durability: compressive strength, water absorption, and the saturation coefficient.
Common building bricks come in three grades that indicate their resistance to weathering:
- Negligible Weathering (NW): Used for interior applications and as a backup for face brick. Suitable for areas with minimal rain and above-freezing temperatures.
- Moderate Weathering (MW): Used for vertical areas that are exposed and above grade. Suitable for moderate rainfall and freezing temperatures.
- Severe Weathering (SW): Used for structures below grade or in contact with the soil, such as foundations. Suitable for heavy rain and freezing temperatures.
Vertical surfaces in contact with the ground within negligible weathering regions should use Moderate Weathering (MW or MX) grade bricks. Vertical surfaces not in contact with the ground within negligible weathering regions should also use Moderate Weathering (MW or MX) grade bricks. Vertical and horizontal surfaces in contact with the ground within moderate or severe weathering regions should use Severe Weathering (SW or SX) grade bricks.
In addition to these grades, there are exposure-grade (EXP) bricks that are built to withstand saline environments. Their exposure grading is determined by a lab test and they are recommended when building up to 1 km from a surf coast or up to 100 m from a non-surf coast.
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Bricklaying costs
In Australia, the standard brick size is 230mm long, 76mm high, and 110mm wide. The cost of bricklaying services in Australia depends on various factors, including the complexity and scope of the project, the type and quality of bricks used, and labour costs.
The average cost of bricklaying services in Australia stands at $2,586, with minimum costs for minor repairs or consultations starting at $120 and maximum costs for larger projects reaching $30,000. The hourly rate for bricklayers ranges from $55 to $80 per hour, with a median of $58 per hour, which can increase to $110 per hour depending on the location and type of bricklaying required.
The cost of bricks in Australia varies, with an average price of $0.35 to $0.90 per brick, usually sold in quantities of 1,000. Concrete blockwork options are more cost-effective than standard bricks, priced at $300 to $500 per 1,000 units. The speed of laying bricks also impacts labour costs, with qualified bricklayers laying up to 1,000 bricks per day, while average jobs see around 500 bricks laid per day.
To obtain an accurate estimate for bricklaying services, it is recommended to obtain multiple quotes from experienced bricklayers, considering factors such as the estimated time for completion, specific brick choices, and the complexity of the project.
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Frequently asked questions
The standard size of a house brick in Australia is 76mm high x 230mm long x 110mm wide. This is also known as the normal face brick and is often used for external walls.
Yes, there are different types of bricks with varying sizes, such as internal fast bricks, double course bricks, and masonry bricks. Masonry bricks, for example, are larger and thicker with dimensions of 80mm x 254mm x 127 mm (length, width, and height).
First, calculate the square meters of the surface area you need to cover. For instance, a wall that is 2 meters high and 5 meters long would be 10 square meters (2m x 5m = 10m2). Then, divide the square meters by the number of bricks required per square meter. For standard bricks, there are 50 per square meter. This calculation will give you the total number of bricks needed.
