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Brick & Block Calculator

Planning a new build, extension, retaining wall or feature wall? Use our free brick and block calculators to get a quick estimate of the materials you may need before requesting a quote.

Choose a calculator below to estimate bricks for a wall, bricks for a pier, or Besser blocks for a retaining wall.

Select calculator

Brick Calculator

Enter your wall measurements to estimate how many standard bricks you may need.

Wall measurements
Openings (optional)

Add windows, doors or other openings in metres. Their area is taken off the wall area.

Waste allowance

Extra material is normally allowed for cuts, breakages, matching and site wastage.

Brick size

Standard Australian brick, 230mm × 76mm with 10mm mortar joints (about 50 bricks per square metre).

Need a quote for the actual job?

The calculator gives you a starting point. For an accurate bricklaying or blockwork quote, send GDK Bricklaying your measurements, plans or photos of the job.

Request a bricklaying quote

Servicing Cessnock, Maitland, Newcastle and the Hunter Valley.

Brick & Block Calculator FAQs

How many bricks are needed per square metre?

For standard Australian bricks, approximately 50 bricks per square metre is commonly used as an initial estimate, although this can vary depending on brick dimensions, mortar joints and wall design.

How many Besser blocks are needed per square metre?

A standard 390mm × 190mm concrete masonry block generally requires approximately 12.5 blocks per square metre.

How many bricks do I need for a brick pier?

The number of bricks depends on the width, depth and height of the pier. Use the GDK Brick Pier Calculator above to get an approximate quantity.

Should I add extra bricks for waste?

Yes. Adding around 5–10% is generally useful to allow for cuts, breakages and wastage. More complicated brickwork may require a larger allowance.

Can GDK Bricklaying quote from my plans?

Yes. Customers can send through building plans, wall measurements, photos or project details and GDK Bricklaying can provide a quote based on the actual scope of work.

Does GDK Bricklaying build Besser block retaining walls?

GDK Bricklaying provides brickwork and blockwork services throughout Cessnock, Maitland, Newcastle and the Hunter Valley. Contact GDK with your retaining wall plans or measurements to discuss the project.

Get a free bricklaying quote

Send through your plans or a few photos and we'll get a written quote back to you, usually within a few days. No obligation, no sales pitch.

Servicing Cessnock, Maitland, Newcastle, Lake Macquarie and the Hunter Valley.