Planning Your Tile Installation
Whether you are installing a new ceramic tile floor or replacing an old one this report will take you step by step through installation process. The following instructions are basic and are designed for most common installations. If in doubt please consult with a professional tile installation contractor.How much tile will you need?
To calculate how much floor tile you will need, measure the length and width of the floor and use our online tile tool.Alternatively, many tile stores will estimate how much tile you will need. Bring them a layout of the room with exact measurements.
The Installation Process
Click here to view our easy-to-view online installation videos, or review the Step-by-Step information below.Preparing your floor for ceramic tile
Exposed Joist, Bare concrete, Plywood, existing hardwood, tile, carpet or resilient tile. Step 1: Floor Preparation
The floor to receive ceramic tile should be sound with very little flex. If you jump up and down on the floor and it moves, you will need to stabilize the subfloor. This is accomplished by screwing or nailing the subfloor to the joists. Use John Bridge's calculator to work out deflection.
Check to make sure the floor is flat. If not it may be necessary to install a plywood or masonite underlayment. On concrete floors, make sure all paint, grease , etc is removed. It may be necessary to lightly sand the floor to remove any excess paint. High spots can be removed with a hammer and chisel.
Remove all baseboards and/or trim. Number the baseboards so that it is easy to locate and reinstall them. I also like to place the number of the baseboard on the wall where I removed it. This way there is no mistaking where it goes.
You will also need to check any doors in the room for clearance. If you are installing a thick tile, the doors may need to be trimmed. The best way to check for clearance is to stack two tiles on top of one another and attempt to slide under the door. If the door swings freely over the stacked tiles, there will be no need to trim the doors. If not, trimming will be necessary.
The last step in preparation is to make sure you have a clean, dust free floor. Clean the floor thoroughly making sure to remove all loose debris and dirt.
Remember, preparation is the key to a long lasting installation!
Laying out the tile pattern.
There are many ways and methods of laying out the ceramic floor tile. Most of the problems associated with layout are due to the room being out of square. The following method is simple, easy to use and does not require a square room.
The first thing you will need to do is to snap two chalk lines. Take the chalk line and snap a line down the center of the room. Snap another chalk line down the center but perpendicular to the first line. In other words you will have one line down the center width of the room and one down the center length.
Next place a row of tiles down along both lines, Make sure to leave room for spacing of the grout. It is a good idea to use grout spacers here.
Once you have laid out the ceramic tile, check to make sure that the spacing is ok. You may need to move the tiles some so that you end up with as many full tiles as possible. This will avoid lots of cutting. If the room is small you may want to cut tile to fit both sides of the room, giving an equal appearance. Let your eye be the judge.
Setting the floor tile
To set most ceramic tile you will need to purchase thin set. Thin set is available by the bag and looks similar to cement. Make sure to buy enough for the entire installation. Most stores will take back unopened bags, so do not be afraid to overbuy.
Mix the thin set in a five gallon bucket by adding water and stirring to a thick pasty consistency. If you wish to use power mixer, make sure it is slow speed. Do not use a drill. Mixers can be rented at most rental supply yards. Believe me it's worth the extra few dollars.
Once the thin set is mixed, trowel it over the area where the tile will be set. Trowel only enough for an area that you can safely reach on your knees. Use a notched trowel and run the trowel so that the rows left in the thin set are in a straight line. DO NOT use a circular pattern.
Place the ceramic tile into the thin set with a slight downward pressure. Take a rubber mallet and lightly tap the tile to assure good coverage. Work in small sections and take your time. Keep an eye on the thin set, if it gets too dry, it may be necessary to add more water and remix. If the thin set comes up between the grout joints, remove it before it dries. Lay all the full tile first and leave the cut tiles until last.
Grouting
Allow the floor to sit overnight before grouting.
You have several choices in grout for ceramic tile. See our report on grout types for more info. Generally, sanded grout should be used in grout joints 1/8 inch or larger and unsanded grout should be used in joints less than 1/8 inch.
When purchasing grout make sure to buy enough to cover the entire project. It is a good idea to buy extra for repairs later. See diagram # for estimating how much grout to purchase.
Mix the grout in a small bucket. Add the powder first and then add water to the bucket and stir with a wooded stick. Do not use a paint mixer attached to a drill to stir. This is too fast and will create air bubbles in the grout. If your're using a latex or acrylic additive, please read the directions on the bottle carefully. Some of these admixtures are used with no water.
Mix the grout into a thick yogurt like consistency. Allow this mixture to sit for ten minutes and recheck to make sure it is still soupy. If not, add more water or additive.
To grout the ceramic tile, you will need a grout float. Take a glob of grout and spread it over the grout lines. Push the grout into the open lines working it in thoroughly. Remove any excess by holding the grout float at 45 degree angle and running the float across the tile. Work in small sections at a time. Remove excess grout with a clean, damp sponge, making sure not to use too much water. Excess water will wash the grout out of the joints. Wait about 10 minutes for the grout to set up and then re-wash with a clean sponge. Once the grouting job is complete, re-wash again.
Tip: Removing excess grout can be a problem The trick to removal is to frequently rinse your sponge, making sure to use plenty of clean water. To avoid numerous trips to the sink, have several buckets of clean water ready to go.
For epoxy grout installation see our report on "The Proper Installation of Epoxy Grout".
The grout should be sealed, but it is best to wait at least 10 days before applying a sealer.
Cutting tile tools
Tile Cutter
A ceramic tile cutter is very similar to a glass cutter. It has a small tungsten wheel which scores a line along the tile. After the line is scored it is snapped clean. Most tile cutters have a guide which makes straight cuts easy. To use a tile cutter, mark the tile with a pencil. Place the tile in the cutter making sure to line it up evenly with the cutting wheel. Lightly run the wheel across the mark to make sure the wheel stays on the line throughout the entire cut. When you are sure it is lined-up, place firm pressure on the handle and move the wheel across the mark. Be sure the wheel has scored the tile. Once scored take the tile and place it on the edge of a flat even surface with the cut line hanging over the edge of the surface. Place one hand on the surface of the tile to hold it in place. With the other hand, snap the tile by placing firm pressure on the hanging end of the tile. The tile should snap clean.
