Large-format checkerboard tiles demand a flat, stable, and well-prepared subfloor. Even small dips or bumps can cause uneven edges or cracking. A leveling compound is often used to create a perfectly smooth base, and a stronger thin-set mortar or large-format tile adhesive is recommended to support the extra weight.

They usually make a room feel bigger because of fewer grout lines and the oversized pattern. However, in very narrow spaces, the large squares may feel overwhelming or show cuts more obviously along the edges. They work best in medium to large rooms or open layouts where the pattern can fully show.

It’s possible for skilled DIYers, but more difficult than installing 12×12 checkerboard tiles. The heavier weight makes them harder to handle and align perfectly, and mistakes are more visible with such large squares. If you’re inexperienced with tile work or want a flawless finish, hiring a professional is a smart choice.

Large tiles look best with thin grout lines — often 1/8" or even less — to maintain a seamless checkered effect. Choose a grout color that complements your tiles (usually matching the lighter tile for a classic look). Proper spacing is critical; tile leveling systems can help avoid lippage between edges.

Yes, but extra support is needed because of their weight. Large porcelain or stone tiles on walls require strong adhesive and sometimes additional bracing during installation. They can make a dramatic feature wall or oversized backsplash but are less DIY-friendly due to handling difficulty.