How Many Bricks per m²? | Brick Calculator
How many bricks per square metre? Estimate count, waste, cost and weight for 13.5 cm and 8.5 cm hollow bricks. Enter wall size for an instant result.
How is brick quantity calculated?
Bricks per m² come from the brick face area plus mortar joint. Formula: count = wall area ÷ ((length + joint) × (height + joint)). Door and window areas are subtracted; waste increases the order quantity.
Steps
- Enter wall length and height (or wall area directly).
- Add door and window sizes if needed; those areas are subtracted.
- Pick 13.5, 8.5 or custom brick size; set joint thickness.
- Enter waste (typically 5–7%). Optionally add unit price and brick weight.
- Read bricks per m², totals with/without waste, and cost.
Average bricks per m²
Typical Turkish market sizes with mortar allowance — guidance only:
| Brick type | Size (cm) | Approx. pcs / m² |
|---|---|---|
| 13.5 cm hollow brick | 19 × 13.5 × 19 | 25 – 28 pcs |
| 8.5 cm hollow brick | 19 × 8.5 × 19 | 25 – 28 pcs |
Brick types (summary)
13.5 cm bricks are common for outer and partition walls; 8.5 cm for thin internal partitions. Both share a 19×19 cm face; the difference is wall thickness (13.5 cm / 8.5 cm).
Practical tips
- Add 5–7% waste for transport, breakage and cuts.
- Mortar thickness (≈1–1.5 cm) can change bricks per m² by 1–2 pieces.
- Subtract door and window areas (width × height) from total wall area.
Field note
Results are guidance only. Bonding bricks, mortar materials and labour are confirmed in the quote.
Frequently asked questions
How many bricks per square metre?
For hollow 13.5 cm and 8.5 cm bricks with mortar, expect about 25–28 pcs/m². Exact count depends on face size and joint thickness.
How many 13.5 cm bricks per m²?
For 19×13.5×19 cm bricks with about 1.5 cm mortar, expect roughly 25–28 bricks per m².
How many 8.5 cm bricks per m²?
Face size matches 13.5 cm bricks (19×19 cm), so count is also about 25–28 pcs/m²; the difference is wall thickness.
How much waste should I add?
Usually 5–7% covers transport, breakage and cutting. Increase slightly for tight spaces with many cuts.