Rectified and non-rectified tile are two common terms you may come across when selecting tile for your next project. The differences between rectified and non-rectified porcelain tile are very important. Each option has its own unique characteristics, cost and suitability that can impact your design’s overall aesthetic.

Non-rectified porcelain tiles, also known as pressed tiles, are made using a machine press process, where the clay mixture is molded into shape before being fired in a kiln. This punching and firing method results in natural, slightly rounded edges and subtle caliber variations. When installing non-rectified tiles, wider grout joints that are no less than 3/16 inch are necessary to accommodate the slight variation. In addition to protecting the tile and adding to the finish structure of the installation, the wider grout joint helps create a more traditional appearance.

Rectified porcelain tiles originate as Pressed tile but then undergo an additional manufacturing process called "rectification," where the edges are precisely cut after the tiles are fired in a kiln. This process results in uniform, straight edges and sharp corners, which allows the tiles to fit together more tightly. Rectified tiles allow you to use smaller grout joints, no smaller than 1/8 inch, creating a seamless, modern look. 

Understanding the fabrication and installation differences between rectified and non-rectified porcelain tiles lies in understanding tile calibration.. Rectified tiles have precisely cut edges, allowing for thin grout lines and a more uniform appearance, while non-rectified tiles have natural variations in calibration, requiring wider grout lines to accommodate these differences. Regardless of the type of tile you choose, Best Tile is here to help you make an informed decision and find the perfect tile for your space, style and budget.