Can I Make Pebble Tiles?

Molds

• The mold determines the shape and size of the finished tile. Mosaic and tile molds are available at craft and hardware stores, but everyday objects also work well. A plastic 5-gallon bucket or metal pie plate creates round tiles, while disposable food containers work for making square or rectangular tiles. The molds may not survive the tile making process, especially if they are thin, so use only items you don't mind disposing of afterward. Molds aren't always necessary. Another option is to mount the pebble mosaic directly onto an existing surface or onto a plain, flat tile.

Pebbles

• Small, smooth pebbles provide the best finished surface on a mosaic tile. Polished pebbles work well, or you can use naturally smooth pebbles like river rocks. Thin pieces of slate also work, although these give more of a stone veneer look than a pebbled appearance. You can use natural unpolished pebbles, but the surface won't be as smooth.

Mortar and Adhesives

• Create stepping stone tiles using molds. Coat the inside of the mold with petroleum jelly, then arrange the pebbles in the bottom of the mold. Fill the mold with 2 inches of prepared mortar mix. Allow the tile to set up for 24 hours before turning it out of the mold. A simpler method makes thinner tiles, but you must use thin, flat pebbles. These tiles are best suited for indoor-only use. Cover a plain ceramic tile with a thin layer of tile floor adhesive. Press the pebbles into the adhesive, making the desired design. Allow the adhesive to dry overnight.

Grouts

• Regardless of the tile construction method use, you must grout between the pebbles after the mortar or adhesive has set. Grout gives the tile a finished look and helps hold the pebbles in place. Use a plain or colored grout, depending on your preference and design. Smooth the grout between the pebbles, wiping away any excess before it dries. Sealing the grout with a grout sealant prevents moisture from seeping in between the pebbles and weakening the tile.