When calculating the quantity of tiles for a project, it is important to:
• know the area of the surface to be tiled
• have already decided on the installation pattern
It is necessary to allow for a certain amount of waste as some tiles will be cut or drilled during the installation process. It is also good practice to keep a reserve of tiles for future maintenance works after installation is completed. Hafary thus recommends ordering an additional 5-10% of tiles.