What is a Rectified Tile? Benefits & Rectification Process

A rectified tile is a type of tile that undergoes a final precision-cutting process at the end of its manufacturing cycle. This process is done using a waterjet machine, which trims the rounded edges that form due to glaze buildup during firing. As a result, the tiles end up with sharp, straight edges, allowing them to fit together more precisely during installation. This trimming process gives the tiles clean, defined corners and edges. If you're curious about the benefits of rectified tiles and how this process works, keep reading.

Benefits of Rectifying Tiles

The advantages of rectified tiles become most apparent during installation. Because these tiles are dimensionally accurate and uniformly shaped, they align perfectly with one another. In recent years, rectified tiles have become increasingly popular among buyers looking for high-end, seamless tile finishes. Here are some key benefits :

1. Clean, Elegant Appearance

Rectified tiles (also known as calibrated tiles) have minimal grout lines, giving surfaces a cleaner and more modern look. The small grout gaps also reduce the buildup of bacteria and stains, contributing to a more hygienic and long-lasting finish. (It's still recommended to use appropriate grout materials to fill the narrow joints.)

2. Seamless Surface Finish

If you've seen large porcelain slab tile installations, you’ll notice their uniform and luxurious look. This is thanks to the precise sizing of rectified tiles, which fit together with minimal visible spacing.

3. Installation with Minimal Gaps

Because all the tiles are perfectly aligned in size, there’s no noticeable difference between them, which helps achieve a consistent, smooth appearance across surfaces.

4. Enhanced Durability

The lack of wide joints prevents moisture penetration and bacterial growth, which means rectified tiles tend to last longer and maintain their quality over time.

5. Lower Cleaning Costs

With fewer grout lines and smoother surfaces, rectified tiles require less frequent cleaning, reducing the use of cleaning agents and chemicals—making them more environmentally friendly.

How the Rectification Process Works

During rectification, the uneven or warped edges of the tiles are precisely trimmed off. This ensures the tiles are level and consistent in size, making them easier to install with near-invisible joints. This precision cutting, typically done with waterjet equipment, requires a high degree of accuracy, which is why rectified porcelain tiles are generally more expensive than standard tiles. When these tiles are first fired, they expand slightly in size. After rectification, they're trimmed back down to standardized dimensions using tools like squares and calibrators. This process removes about 1.5% of the tile's original size, improving their uniformity and installation quality. Note: Only high-quality (Grade A) tiles are suitable for rectification. Lower-grade tiles often have surface warping or irregularities that make them unsuitable for this process.

Price of Rectified Tiles

Rectified tiles are more expensive than regular tiles. Their clean look, dimensional accuracy, and seamless finish justify the higher cost. They also add aesthetic value and longevity to your home or building.

Final Thoughts

Thanks to the many advantages of rectified tiles, more and more people are opting for them in modern construction. The rectification process helps prevent moisture and bacteria from seeping into grout lines, increasing the tile's lifespan and ensuring a beautiful, durable surface.