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Tips for Installing Tile

Easier installation, less frustration

installing tileFamily Handyman
Installing tile in a kitchen or bathroom is hard work. This collection of tips may not eliminate all your tile troubles, but it will help you avoid the most common headaches.

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Mix it smooth

For a smooth mix, wait

Mix up the thin-set or grout, then let it stand for about 10 minutes. That allows dry chunks time to absorb water before you do the final mixing.

After all the prep and layout work, youre finally ready to start installing tile and see some results. The last thing you want to do is stop and wait. But giving the thinset time to absorb water, or slake, is the key to a smooth, chunk-free mix. A chunky mix will drive you crazy when you try to comb the thin-set onto the wall or floor. After slaking, remix and add a smidgen of water if needed. Play the same waiting game when you mix up the grout later.

Start with a flat floor

Pour a perfect floor

Self-leveling compound gives you a flat, smooth base for tile. It’s also a fast way to embed in-floor heating mats or cables.

Tiling a wavy floor is a nightmare. You push and pry to get each tile flush with its neighbors and you still end up with lippage (edges that protrude above adjoining tiles, usually at corners). So before you tile, check the floor with a 4-ft. straightedge. If you find low spots more than 1/4 in. deep, screed thinset over them to create a flat surface.

For really bad floors, self-leveling compound (also called self-leveling underlayment) is a lifesaver. You just mix the powder with water and pour to create a flat, smooth surface. A perfect tile base doesnt come cheap, thoughexpect to pay about $2 per sq. ft. Some products require metal or plastic lath; some dont.

Self-leveling compound is almost goof-proof, but there are two big pitfalls. First, it will slowly seep into the tiniest crack or hole, leaving a crater in the surface. So before you put down the lath, grab a caulk gun and fill every little gapeven small nail holes. Second, you have to work fast. Most compounds begin to harden in about 30 minutes. To get the whole floor poured in that time frame, you need at least one helper to mix the compound while you pour. And even with help, youll have to move quickly.

Remove the baseboard

Give yourself some wiggle room

With baseboards removed, measurements and cuts don’t have to be precise. That means faster work and fewer miscut tiles on the scrap pile.

You can leave base trim in place, lay tile along it and caulk the gap. But that shortcut will look second rate and cost you hours of fussy measuring and cutting. With baseboards gone, your cuts dont have to be precise or perfect; the baseboard will hide chipped edges and small mistakes. If youre just dead-set against pulling off baseboards, consider adding base shoe molding along the bottom of the baseboard after you set the tile.

Set against guide boards

Boards are better than lines

Unlike chalk lines, guide boards don’t get lost under thin-set or allow tiles to shift as you set other tiles.

The usual way to position the first rows of tile is to snap chalk lines. But there are two problems with that method: First, chalk lines are hard to see if youve slopped thin-set over them. Second, the first row of tile can move as you set the next row. Guide boards solve both problems. Position the boards the same way you would position layout lines and screw them to the floor. Be sure to choose perfectly straight boards or cut strips of plywood. Also, wrap the edge of the guide with duct tape so the thin-set wont stick to it.

Video: Create Your Own Floor Tile Layout

Planning the layout for a tile project is usually the hardest and most time- consuming step in installing tile. Watch this video to learn how a pro does it. You’ll see how to snap chalk lines and make sure they are perfectly square. Plus, you’ll learn how to avoid unsightly narrow, difficult-to-cut tiles along a wall. Don’t start a tile project until you’ve watch this video!

Get a straight start on walls

Set tiles on a ledger

Fasten a straight ledger to the wall to support the tiles. Remove the ledger later and trim tiles to fill the gap below.

The obvious way to tile a wall is to start at the bottom and work your way up. And that works fine if the base of the wall (usually the floor or bathtub) is perfectly flat and level. If not, the tile will simply amplify the imperfections; youll end up with misaligned tiles and grout lines that vary in width. To get a straight, level start, position a ledger on the wall, leaving a gap belowabout 1/2 in. less than a full tile. The ledger shown here is a length of steel angle held in place by wood blocks screwed to the wall. A strip of plywood or a perfectly straight board will do the job too.

Clean up right away!

Clean out the squeeze-out

Plow excess thin-set out of joints with a utility knife, a pencil or a tile spacer. Whatever you use, do it now, not later.

When youre done setting the tile, stand back for a minute to admire it. Then get back to work. First, drop your mucky tools in a bucket of cold water. That will slowbut not stop the hardening of the thin-set. Next, inspect all the joints for thin-set that has squeezed out between tiles and clean it out before it hardens. Also look for thin-set smudges on the face of the tile. If a smudge has hardened and wont wipe off easily, wet it and scrub with a synthetic abrasive pad (the kind you use to scour cookware). Use minimal elbow grease; if you rub really hard, its possible to dull polished stone or even glazed tile. Now go clean up those tools.

Tackle tough cuts with a grinder

Cut outlet holes

Outline the light switch or outlet box on the face of the tile. Cut as much as you can, then finish the cut from the back, where you can overcut the corners slightly.

A grinder isnt the best tool for cutting tile. It whips up a nasty dust storm and often leaves jagged or chipped edges. Plus, its just plain slower than a tile cutter or wet saw. But equipped with a diamond blade, a grinder will cut curves and make enclosed cuts that those other tools cant. Choose a dry-cut blade and do the cutting outdoors.

Slow down the drying

Pros like to finish the job fast and will sometimes use fast-setting thin-set. For the rest of us mortals, slower is better, and even the standard products sometimes harden or dry out too fast. Here are two ways to give yourself extra working time: First dampen the backer board or concrete with a sponge before you spread the thin-set. A damp surface wont immediately suck moisture out of the thin-set. Second, mix the thinset with latex additive rather than water. Latex additive dries slower than water and boosts adhesion in both thin-set and grout. It also makes grout more stain-resistant. (A few latex additives are designed to speed the hardening process; check the label.) If thinset or grout begins to harden before you can use it, just toss it. Dont add water and remix. Thats a recipe for weak bonding and trouble later.

Required Tools for this Installing Tile Project

Have the necessary tools for this DIY project lined up before you startyoull save time and frustration.

  • Angle grinder
  • Bucket
  • Cordless drill
  • Framing square
  • Grout float
  • Knee pads
  • Level
  • Nippers
  • Notched trowel
  • Trowel
  • Utility knife
You’ll also need a margin trowel, rubber gloves, a sponge and a tile saw.

Required Materials for this Installing Tile Project

Avoid last-minute shopping trips by having all your materials ready ahead of time. Here’s a list.

  • Drywall screws
  • Floor leveler
  • Grout
  • Latex additive
  • Thin-set mortar
  • Tile
  • Wood strips