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Like glass tiles, you will not need to seal most porcelain tiles, particularly if the porcelain is already glazed. It depends on quality. Porcelain is very water resistant, but it is not 100% waterproof. To avoid staining, some homeowners use a penetrating sealer. It is also a good idea to seal your grout. Unless you use epoxy grout, grout is very porous and can harbor bacteria, mold, and mildew.

The number of boxes of tile you need depends entirely on the amount of tile in each box or case. Different manufacturers package their tiles differently, and boxes contain different amounts of tile depending on the size, shape, and material. Often, the amount of area that a case will cover is listed in the product description. To calculate the number of boxes you need, take the total square feet of the space and divide it by the number of square feet the box will cover.

Solvents dissolve tile adhesive, but the right solvent for the job depends on what type of adhesive you are trying to remove. For instance, dispersion adhesive requires stronger removers, like bile soap or even paint stripper, but some adhesives, like cement-based products, can come off with water and soap or mortar remover.

To make a small bathroom look bigger, choose light-colored tiles in a medium- to large-format size. Lighter colors like white, cream, or light gray help open up a room, making it feel larger and more airy. While it may seem counterintuitive, small tiles can actually make a bathroom look smaller because the increased number of grout lines creates a busy pattern that visually shrinks the space. Instead, opt for medium- or large-format tiles for a more seamless, expansive appearance. For the best effect, pair your tiles with a matching or similarly colored grout to create a continuous surface that enhances the illusion of a larger area. Avoid dark colors, heavy patterns, and contrasting grout, as these can make the space feel more confined.