Brickwork & Mortar Calculator
Accurate takeoff for standard UK bricks and building materials.
Estimation Results
Mortar Tip:
Standard brickwork requires a 1:6 cement to sand ratio. For foundation brickwork or below ground level, a stronger 1:3 or 1:4 mix is recommended.
UK Brickwork Guide: Sizes, Ratios & Construction
Professional Bricklaying
Accurate material estimation is the foundation of a successful building project. Whether you're building a garden wall, an extension, or a garage, knowing your bricks per m² is essential for budgeting and logistics.
In the UK, we adhere to a strict standard brick size that has remained consistent for decades, making calculation highly reliable for most projects.
Brick Dimension Specs
Single Skin vs. Double Skin
Understanding your wall construction is critical for the final brick count.
- 1
Single Skin (Half Brick): Standard for garden walls and partitions. One brick thick (102.5mm).
- 2
Double Skin (Full Brick): Used for structural walls, load-bearing boundaries, and traditional houses. Two bricks thick (215mm).
The Mortar Mix
For standard brickwork above ground level, use a 1:6 mix (1 part cement to 6 parts building sand). For internal or lightweight walls, you can use 1:5. Adding a plasticizer will make the mortar "buttery" and easier to work with.
Frog Up or Frog Down?
Standard UK bricks have an indentation called a "frog". For maximum structural strength, bricks should be laid frog up, ensuring the indentation is filled with mortar.
Pro Tip: Bonding Patterns
While "Stretcher Bond" is the standard for modern walls, decorative patterns like "English Bond" or "Flemish Bond" involve alternating full bricks with half-bricks (headers). These patterns require more skill but provide a classic architectural aesthetic.
Brickwork & Wall FAQ
Structural Safety Disclaimer
This calculator is for estimation purposes only. All structural walls, retaining walls, and chimney repairs should be designed by a qualified structural engineer and must comply with current UK Building Regulations. Incorrect wall thickness can lead to catastrophic failure.