Travertine is a natural stone, while porcelain is ceramic. You can enjoy the best of both worlds with porcelain travertine tiles. Some people prefer porcelain to travertine because it doesn’t require regular maintenance and it’s easier to clean. Porcelain travertine looks like the real thing but only costs $3 to $6 per square foot.

Yes, you can install a backsplash directly onto drywall, provided the wall is properly prepped, clean, and dry. For best results, especially in kitchen areas, your walls should be made of moisture-resistant drywall, often called green board. If your current wall isn't moisture-resistant, it's recommended to replace it before installing the backsplash. For even greater protection against water damage, you can remove the existing drywall and install a tile backer board or cement board instead. While properly installed standard drywall is typically strong enough to support a backsplash, some local building codes may require water-resistant materials in kitchen areas, so it's a good idea to check.

Penny tile should be sealed to protect the grout from moisture and keep stains from damaging the look of the tile. If penny tile is in a humid or high-traffic area, like a bathroom, kitchen, or entryway, it needs sealant. Any type of tile and grout is best maintained with a sealant reapplied by a pro every one to two years.

Per the International Code Council, walk-in shower floors should have a minimum slope of 1/4-inch per foot (or a 2% slope) towards the drain. The slope should be no steeper than 1/2-inch per foot (or a 4% slope). This helps safely direct water into the drain rather than all over your bathroom.