How to calculate floor tiles for an Australian room
Start with the room area: length × width = m². Divide by the tile area to get individual tile count, then divide by tiles per box to get box count. Always add a waste margin — cutting tiles means offcuts, and tiles can crack during installation or be needed for future repairs.
Standard Australian tile sizes
The most common floor tile sizes sold in Australia are 600 × 600 mm (popular for living areas and kitchens), 600 × 1200 mm (large format, increasingly popular), and 300 × 300 mm (bathrooms, wet areas). Wall tiles are often smaller — 300 × 600 mm is a common bathroom wall tile.
How much waste margin should I add?
- 5% — simple square or rectangular room, straight grid lay, experienced tiler
- 10% — standard for most projects, recommended default
- 15% — diagonal (45°) lay, L-shaped rooms, lots of cuts around obstacles
Always buy a few extra tiles from the same batch and store them. Tile colours vary between production batches — if you need to replace a cracked tile years later, an exact match from a different batch is almost impossible.
Plank flooring — hybrid, laminate or timber?
Hybrid flooring (rigid core SPC or WPC) is the dominant choice in Australian homes — it's waterproof, dimensionally stable in Queensland heat and humidity, and click-locks without adhesive. Laminate is cheaper but not suitable for wet areas. Engineered timber is beautiful but more sensitive to moisture and temperature fluctuations.
Plank flooring is sold by the box with coverage in m² printed on the label. The box coverage is what matters — enter it directly into this calculator.
Carpet and sheet vinyl
Carpet and sheet vinyl are typically sold by the linear metre at a standard width (3.6 m or 4.0 m roll width in Australia). Your flooring supplier will calculate cuts from the roll — but knowing your room area in m² helps you get accurate quotes and compare prices per m².