Draw the split before measuring
Mark one rectangle A and the other B. In our L-shaped area calculator, B attaches beside A along its full width. B’s width must not exceed A’s width. The diagram shows the arrangement so you can check your split.
Record the dimensions of each rectangle rather than using the room’s maximum length and maximum width as one rectangle. That larger rectangle would include the missing corner.
A worked L-shaped example
Rectangle A measures 3.2 × 2.4 m, so its area is 7.68 m². Rectangle B measures 1.2 × 1 m, adding 1.2 m². The total is 8.88 m², approximately 95.5835 ft².
If a 0.5 m² section will not receive the material, deduct it once from the floor area: 8.88 − 0.5 = 8.38 m². Keep any wall or ceiling deductions separate.
Use the area for a material estimate
Area is the starting point. The tile calculator adds your waste allowance and box rounding; the flooring calculator also handles underlay.
Avoid adding waste to the dimensions themselves. Apply your allowance to the measured net area, and keep it visible as a separate line.