This calculator provides an estimated quantity based on the measurements you enter, and already includes a 10% wastage allowance to cover standard cutting waste and breakages.

For more complex installations – such as herringbone or other pattern layouts, walls with many corners or cut-ins, or curved surfaces – actual wastage may exceed 10%, and we recommend ordering additional stock to compensate. If you’re unsure, we recommend confirming quantities with your installer or contractor before ordering.

Keystone Supply is not liable for shortfalls or surplus stock resulting from estimates generated by this tool. Please note that natural variation in colour and texture is a characteristic of brick tile products and is not grounds for return – see our Return & Refund Policy for full details.

If you’re unsure how much to order, feel free to contact us for guidance, or consider ordering a sample first.