The underlayment determines a ceramic tile’s sturdiness, and a cement board or backer board works best. Be sure to tape the joints when using these materials, and consider laying it on top of a layer of thin-set for more stability.

The cost to install porcelain tile is about $1,930 on average. Porcelain tile prices range from $880 to $3,000 or more. The average cost tends to be higher than ceramic tile because porcelain tile is very durable. Porcelain tile rating also factors into the material cost. Tile ratings are as follows:

• Grade 0: Walls only

• Grade 1: Walls and light traffic floors

• Grade 2: Rooms with light traffic, but not kitchens or hallways

• Grade 3: Kitchens, hallways, and entryways

• Grade 4: Any area, interior or exterior

• Grade 5: Highest durability good for any area, interior or exterior

The average cost for tile installation is about $2,000, with a typical price range between $500 and $6,500. On a per-square-foot basis, you can expect to pay between $5 and $45 for installation.

Several factors influence the total cost, including:

• Installation Site: Costs vary for different areas. Common project costs are: kitchen floor ($870–$6,100), countertop or backsplash ($500–$3,000), bathroom floor ($300–$2,400), or shower wall ($225–$2,000).

• Tile Type and Quality: The material significantly impacts price. For example, standard ceramic or travertine tile can cost about $1 per square foot, while luxury options like marble can be as much as $350 per square foot for the material alone.

• Project Size and Complexity: The total square footage, the complexity of the pattern, and the shape of the tile (e.g., square, rectangle, hexagon, mosaic) will affect labor and material costs.

• Site Preparation: The amount of prep work needed, such as removing old tile or installing a new subfloor or backer board, can add to the final price.

• Tile Characteristics: The tile's durability rating and porosity can also influence the price.

• Location: Labor rates vary by geographic location.

Most professional shower tile installations take between six and eight hours, depending on the size and complexity. Most projects get completed in a single workday. DIY-ing the project takes around three to four days or roughly 16 hours. However, this will vary based on the skill level of the person completing the work.