The difference between rectified and pressed-edge tile lies in the manufacturing finish applied after the tile has been fired. Rectified tiles are mechanically cut or ground to ensure that every piece is identical in size and perfectly square. This process allows installers to achieve extremely tight, consistent grout joints, resulting in a cleaner, more seamless look that is highly desirable in modern commercial architecture. Because these tiles have very sharp, crisp edges, they are well-suited for large-format installations. Pressed-edge tiles, by contrast, are removed from the kiln and left with their natural, slightly rounded edges. Because these tiles can have minor variations in size due to the inherent shrinking of clay during the firing process, they require wider grout joints to absorb these dimensional discrepancies. While rectification creates a precise look, it does not mean that the tiles are perfectly flat; installers must still be diligent about checking for warpage and following proper installation patterns, such as avoiding a 50 percent offset for large-format units. In commercial settings, the choice between the two often comes down to the desired aesthetic and the budget for installation, as tighter joints require a much higher level of substrate preparation to avoid lippage. Always check the manufacturer's technical documentation for the recommended minimum grout joint width, regardless of whether the tile is rectified or pressed.
Key considerations
- rectified vs pressed tile, commercial rectified porcelain, tile edge types
- rectified tile, pressed-edge tile, commercial tile
- layout accuracy, joint consistency, appearance control
- precision edges, rounded edges, variable joint options