DIY Network

Tiling a Floor Randall Simon learns the precision of floor tiling. From "Trade School" episode DTRS-208

Figure A

In this episode of DIY's Trade School, student Randall Simon (figure A) learns some new tricks from tile master, Remo Neito. To build Randall's skills, Remo sets him up with a tile floor project.

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Basic Tools:

utility knife
scraper
pry bar
wrench
hammer
diamond blade wet saw
tile nippers
rubbing stone
level
framing square
chalkline
backer board
fiberglass mesh tape
thin-set
brush/broom
notched trowel
clean towels
grout
grout float
grout sealer
caulk

Randall learns the importance of prep work as he begins tearing up the existing carpet. He first cuts through the carpet with a utility knife to reveal the plywood sub-floor below. To prepare the sub-floor for underlayment, Randall pulls up the carpet pad and pries up all the tack strips (figure B). It's important to start with a smooth surface, so Randall pulls out any remaining staples and vacuums all the debris. Then in the bathroom, Randall carefully removes the toilet.

With the sub-floor in good shape, Randall and Remo begin setting underlayment. Underlayment, or backer board provides a good foundation for the tile. Without it, tiles can crack as the house settles and shifts over time. In order to fit the backer board into each nook and cranny, Randall needs to cut the 4' x 4' boards down to size using a utility knife (figure C). After carefully measuring the areas, he then transfers his measurements to each piece. Once the pieces are cut and dry fit, Randall trowels a layer of mortar, or thin-set, on the sub-floor (figure D). For a secure hold, Randall screws down each piece. Once the thin-set dries, he's ready to move to the next step—layout.

Figure B

Figure C

Figure D

Randall and Remo power through the prep work for this floor, but it's the final step that may be the most important. The human eye is quick to notice odd sizes and irregular patters, so to prevent a lop-sided looking floor; Randall makes sure he creates a layout that maintains a visual balance. He lays a row of tiles as a reference (figure E), and then Remo creates a grid with a chalk line and a framing square (figure F).

Figure E

Figure F

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