Tile vs Solid Surface vs Panel Shower Walls

Shower walls take more water than any wall in the house, and they are the surface you clean most. The choice is between tile, with its endless looks and its grout, and a family of panel systems that cover the wall in a few large pieces. None of them is waterproof on its own terms in every place, and each has a different weak point. This page compares them on what matters day to day.

What the code asks of a shower wall

The Washington Residential Code (R307.2) requires shower walls, and walls above tubs with showerheads, to have a nonabsorbent surface to at least 6 feet above the floor. Every option on this page meets that when installed correctly. In practice most remodels finish the shower walls to the ceiling, which looks better and protects the wall above the spray. The code is the minimum; how the wall behind the surface is built is what keeps the framing dry.

The options side by side

Tile

Tile gives the most design freedom: any size, any pattern, mosaics, handmade tile, stone. It fits any wall, niche or bench shape. The cost is in labor and in grout.

Grout is not waterproof. Cement grout absorbs water, which is why the waterproofing behind tile, not the tile itself, keeps the wall dry. The TCNA says of bonded membrane showers that the membrane must cover the solid backing under the entire area to be tiled. The waterproofing explained page covers the systems. Grout choice and sealing are covered in grout and sealing.

Porcelain is the denser tile. The TCNA defines porcelain as tile with water absorption of 0.5 percent or less, tested by ASTM C373, and certified tile may carry the Porcelain Tile Certification Agency mark on the box. Porcelain versus ceramic tile compares the two.

Large porcelain slabs

Large-format porcelain panels and slabs keep the look and hardness of tile with only a handful of joints. They need very flat walls, careful handling and installers experienced with big pieces. The TCNA advises specifying its large format tile installer certification when tile 15 inches and longer will be installed by the thin-set method, which gives a sense of how much the installation matters. Valve and niche cutouts have to be precise. See large-format and slab tile.

Solid surface and cultured marble

Solid surface is a cast material with the same color all the way through. Seams can be joined so they barely show, and light scratches can usually be sanded or buffed out. It feels warmer to the touch than tile.

Cultured marble is a cast panel with a protective gel coat on its face. It gives a marble look with no grout and few seams. The coat is the wear layer, so abrasive cleaners and scratches are the enemy. Our article on cultured marble covers it in more detail.

Both are ordered to size for your shower, so measurements and cutouts are fixed early.

Acrylic, fiberglass and composite panels

Acrylic and fiberglass surrounds are the familiar one-piece or three-piece shower walls, and they fall under the same plastic plumbing fixture standard (CSA B45.5/IAPMO Z124) that covers shower stalls. They cost least, install fastest and are the easiest to clean. They can look plain, and thin panels can flex if the wall behind them is not solid and flat.

Newer composite and laminated panels print stone or tile looks on a rigid core and join with trims or interlocking edges. Quality varies widely between products, so read the installation instructions and warranty, especially on how the joints and fixture openings are sealed.

Who should choose which

• Choose tile if the look matters most, the shower has niches, a bench or an unusual shape, or you want a pattern or handmade tile.
• Choose large porcelain slabs if you want a stone or tile look with minimal grout and can budget for the installation.
• Choose solid surface if you want no grout, a seamless look and a surface that can be repaired.
• Choose cultured marble for a marble look with no grout at a mid budget.
• Choose acrylic or composite panels for a hall bath or rental where cost, speed and easy cleaning come first.

What to check before you buy

• How the system is waterproofed behind the surface, in writing, including seams, corners and fixture openings.
• For tile: the tile's water absorption (porcelain or ceramic), the grout type and the tile layout drawing.
• For slabs and solid surface: where the seams fall, and how cutouts for the valve and niche are made.
• For panels: whether they go over old tile or bare backer, and what the maker requires behind them.
• The care instructions, especially which cleaners void the warranty.
• How trims and edges finish at the ceiling, the tub or base and the outside corners.

JDI Construction helps you choose the shower wall material during design, with samples and a 3D layout of your shower. Wall choice also affects price; see shower remodel cost, or start on our Vancouver shower remodeling page.