Cutting & shaping
How a 12×24 becomes a 6×11 perimeter piece — wet saws, snap cutters, hole saws, and nippers.
Wet tile saw(Tile saw, Diamond blade saw)
A bench-top saw with a continuous-rim diamond blade cooled by a water reservoir — the workhorse for porcelain, glass, and natural-stone cuts. The water keeps the blade from overheating and traps the silica dust that dry cutting would throw into the air.
Rent or buy ($150–500) for any job over ~30 sq ft, and treat it as mandatory for tile larger than 12 inches or for any natural stone. The RUBI DC-250 and DeWalt D24000 are the two professional models you'll see on most U.S. jobsites; the cheap 7-inch home-center saws handle ceramic but bog down on dense porcelain.
Manual snap cutter(Score-and-snap cutter, Rail cutter)
A lever-arm cutter that scores the tile face with a small tungsten-carbide wheel and then snaps it on a fulcrum bar. No water, no dust, no power cord — and a clean straight edge when the wheel and pad are in good condition.
Faster than a wet saw for production cuts in ceramic and softer porcelain — most backsplash jobs never need anything else. RUBI TX-Series and Sigma 3B are the professional standards; both struggle on full-vitrified porcelain and natural stone, where a wet saw is the right tool.
Tile nipper(Tile pincers)
A scissor-style hand tool with carbide-tipped jaws that bite small irregular pieces off a tile edge. The jaws are offset slightly so you bite a few millimeters at a time rather than trying to snap a clean line.
The right tool for fitting around pipes, outlet boxes, and odd corners where neither a wet saw nor a snap cutter will reach. It leaves a rough edge — fine when the cut is hidden under an escutcheon or trim piece, but for any exposed curve a hole saw plus a wet-saw rough-cut is cleaner.
Diamond hole saw
A cylindrical drill bit with a diamond-grit cutting edge, mounted in a corded drill or drill stand to bore a clean round hole through tile, glass, or stone. Sizes typically run 1/4 inch through 3-1/2 inches in 1/8-inch steps.
Required for shower-valve cutouts, mixing-valve trim, faucet stems, and outlet round-overs. Drill at 200–400 RPM with a steady water drip or a sponge in a tray underneath — running dry burns the diamonds off the rim and ruins a $30–60 bit in under a minute.
Handheld score-and-snap tool(Glass cutter style scorer)
A small handheld scoring tool with a tungsten-carbide wheel on the end, used to scribe a line on the tile face that's then snapped over a straightedge. No rail, no fulcrum — just the scorer and a steady hand.
A $20 backup for occasional DIY cuts in thin ceramic wall tile and mosaic sheets. Too slow and too imprecise for production work — once you set more than a few square feet, a manual rail cutter pays for itself in the first afternoon.
Mixing & applying
What gets the thinset out of the bucket and onto the wall — notched trowels, margin trowels, paddles, and the buckets they live in.
Notched trowel(Square-notch trowel, U-notch trowel, V-notch trowel)
A flat steel blade with evenly spaced notches cut into two or three edges, sized to leave ridges of thinset at a controlled depth. Square, U, and V profiles each meter a different amount of mortar.
Match the notch size to the tile: a 1/4-inch square-notch for tile up to 8 inches, a 1/2-inch U-notch for large-format. Hold the trowel at 45 degrees, pull through the wet mortar to leave parallel ridges, then press the tile in and twist slightly so the ridges collapse to ANSI A108.5's 80%–95% coverage.
Margin trowel
A smaller flat trowel with rounded corners and a straight edge, no notches. The handle sits low over the blade so you can work in tight inside corners without the knuckles fighting the wall.
Scoop mortar from the bucket onto the notched trowel, back-butter the back of a large-format tile (required by ANSI A108.5 above 15 inches), and smooth thinset behind the toilet flange or in any corner where the notched trowel won't fit.
Mortar mixing paddle
A paddle attachment that chucks into a 1/2-inch corded drill, with fins shaped to fold dry powder into water without whipping in air. The Collomix MK-160 and Kraft Tool style cage paddles are the two common shapes.
Mix thinset, grout, and self-leveling underlayment at the manufacturer's specified RPM — typically 300–500 for thinset, 150–300 for SLU. Run any faster and you entrain air, which weakens the mortar and gives you pinholes in the grout joints once everything cures.
Mixing bucket(Mortar pail)
A 5-gallon bucket dedicated to mortar mixing — ideally with a slight taper so the mortar doesn't pack into the corners, and a sturdy steel handle that won't pop loose under 60 lb of wet thinset.
Keep three on the truck: one for thinset, one for grout, one for clean rinse water. Never mix grout in a previously thinset-stained bucket — cured residue rehydrates and contaminates the grout color, and the cleanup costs more than a $5 bucket.
Leveling & layout
The tools that decide whether the install runs square or fights itself by row four — levels, lasers, tapes, chalk lines, spacers, and lippage clips.
Spirit level(Bubble level)
A rigid aluminum or composite beam with one or more bubble vials that show level (horizontal) and plumb (vertical) by where the bubble centers between the engraved lines.
Check the substrate is flat to 1/8 inch over 10 feet — the ANSI A108.02 §4.3.7 spec for any tile 15 inches or larger — before troweling a single drop of thinset. 4-foot and 6-foot levels (Stabila 96-M, Empire Magnum) are the tile-trade standards; the 2-foot torpedo lives on the niche-and-curb work.
Laser level(Cross-line laser, Self-leveling laser)
A small box that projects one horizontal and one vertical laser line onto walls and floors, with an internal pendulum that auto-levels the beams within a few degrees of tilt. Bosch GLL series and DeWalt DW088 are the common picks.
Set a laser horizontal line as the reference for the first course of wall tile (working up from it once it's set), or drop a vertical line down the dead-center of a backsplash to line up the cuts on both sides. Easier and more accurate than a chalk line on most vertical-surface layouts.
Tape measure
A retractable spring-loaded steel tape, usually 25 or 30 feet long, marked in both imperial and metric on the better models. The hook at the end is rivet-mounted to slide a hair when pushed vs pulled — that's intentional and accounts for the hook's own thickness.
Every measurement on a tile job starts here. Pros keep two on the belt: a 16-foot for individual tile cuts (lighter, faster) and a 25- or 30-foot (Stanley FatMax, Milwaukee Stud) for room dimensions and snapping centerlines.
Chalk line(Chalk box)
A spool-and-string tool — usually 100 feet of braided cord inside a chalk-loaded plastic case — that snaps a straight chalk reference line across a floor or wall when you pull, hold, and pluck the string.
Snap the layout grid before setting a single tile. Get the perpendicular centerlines right and verify them with a 3-4-5 triangle, and the install goes smoothly; get them wrong and every cut compounds the error to the opposite wall. Use blue chalk indoors — red is permanent and shows through grout.
Tile spacers
Small reusable plastic crosses, T-pieces, or wedges — typically 1/16 inch through 3/8 inch — that hold a consistent grout joint between tiles while the thinset cures.
Place one at every intersection of four (or two, on a perimeter) tile corners, and pull them before grout day. Sizes match the planned joint width: 1/16 inch for polished rectified tile, 1/8 inch for most ceramic and porcelain, 3/16 inch and up for rustic stone where the variation in tile-edge cut needs visual breathing room.
Tile leveling clip system(Lippage clip system, Tile leveling system)
A disposable plastic clip and a reusable wedge that together force two adjacent large-format tiles to sit flush across the joint, pulling out lippage that the mortar bed alone wouldn't catch.
Required by TCNA guidance on any tile 15 inches or larger. Slip a clip under each edge of every tile, drive the wedge through the clip slot to compress the joint, then snap the stem off at the floor with a kick once the mortar cures. Raimondi RLS and Lippage are the two systems on every U.S. supply-house wall.
Finishing
Grout day and the seam between tile and the rest of the world — floats, sponges, and caulk guns.
Grout float(Rubber float)
A rectangular hard-rubber pad (~4 × 9 inches) bonded to a wood or plastic handle, used to pack grout into the joints and then scrape the excess off the tile face.
Hold at 45 degrees and pull the float diagonally across the joints to press the grout in, then shift to a steeper angle to scrape the excess back into the bucket. Softer rubber on glass and polished marble; harder rubber (or an epoxy-rated float) on ceramic and porcelain.
Grout sponge(Tile sponge)
An oversized cellulose sponge — typically 5 × 7 × 2 inches with rounded edges and corners — that resists gouging fresh grout out of the joint during the cleanup wipe.
Rinse in clean water, wring out until it's barely damp, and wipe the tile face on a diagonal to lift haze without pulling grout out of the lines. Change the rinse water every 50–80 sq ft — once it's gray the sponge just redeposits cement film on the tile.
Caulk gun
A ratcheting trigger gun that holds a 10-oz tube of silicone, urethane, or polyurethane sealant. Smooth (no-drip) versions release pressure on the plunger when you release the trigger so the bead stops on demand.
Every tile-to-tub, tile-to-counter, and inside-corner change of plane gets a flexible-sealant joint instead of grout — the building moves seasonally, rigid grout cracks, and TCNA EJ171 has called for soft joints at every plane change for decades. Sashco Big Stretch and Mapei Mapesil are the common picks in grout-matched colors.
Safety & comfort
What keeps the install from costing the installer their knees, eyes, or lungs.
Knee pads
Padded knee covers — typically with a gel-filled or hard-cap shell over a foam pad — strapped above and below the knee with elastic or hook-and-loop bands.
Floor tile work is hours on your knees, and cheap pads lead to long-term joint damage and bursitis. Spend on gel pads with non-slip caps (TROXELL USA and Tommyco are the tile-specific brands); the $20 generic foam pair from the home center slides and bottoms out within a week.
Safety glasses
Impact-rated eyewear that meets ANSI Z87.1, with side shields and polycarbonate lenses rated for high-velocity small-projectile impact.
Every wet-saw cut throws chips, and every score-and-snap can launch a tile fragment the moment the score line breaks. Cheap insurance — keep a pair in the saw kit and a second pair on the truck so a forgotten or scratched lens doesn't become an excuse to skip them.
N95 dust mask / respirator(Respirator, N95 mask, P100 respirator)
A NIOSH-certified filter mask covering the nose and mouth — N95 for general dust, P100 for higher loading and oil-aerosol resistance — that filters at least 95% of respirable particulates.
Dry-cutting porcelain or stone releases respirable crystalline silica, a confirmed carcinogen and the subject of OSHA's silica standard (29 CFR 1926.1153). Always use water-cooled cuts when possible; when you can't (small touch-up grind on an installed tile, dry-cut backerboard), a fit-tested N95 or P100 is non-negotiable.