Which white
The product names in this range carry the answer: Michelangelo Extra White, Arctic White, Natural Ivory. Those are three genuinely different whites, and a room usually wants one of them to lead.
The split that matters is warm against cool. A warm white carries cream or beige and sits with oak, brass and painted cabinetry. A cool white leans gray or blue and sits with stainless, gray stone and a north-facing room. Putting a cool floor under warm cabinets is the commonest way a white kitchen goes wrong.
Finish on a pale kitchen floor
Polished, matte and honed are close to evenly split here, and on a white floor the choice does more than on any other color. A polished white throws light around a kitchen and shows every footprint and every water spot.
Matte and honed take the daily marks without showing them and hand back some of the brightness in exchange. In a kitchen with little natural light that trade is worth thinking about, because a matte surface returns light as a soft glow, and the brightness then has to come from the lighting rather than from the floor.
Porcelain and marble
Porcelain carries the practical argument. It is fired dense, it takes what a kitchen drops on it, and the marble look prints hold up at floor distance. What real marble carries instead is depth that goes into the stone and does not stop at a printed layer, along with the carbonate chemistry that comes with it.
In a kitchen that means a marble floor will take an etch where something acidic is spilled and left. Plenty of kitchens have marble floors and have had for centuries; it is a choice about whether a floor is allowed to age.
Carrara, Calacatta, Thassos
The white marbles here arrive under their quarry names and they are not interchangeable. Carrara is the gray-veined one, fine and evenly figured, and it is the white marble most people picture. Calacatta is the bolder half of the family: a brighter ground with wider veining that can carry gold or warm brown, so a Calacatta floor is a pattern as much as a color.
Thassos comes closest to an unfigured surface: a white with almost nothing crossing it, and it earns its place in a room that already has a pattern somewhere else. Bianco and Alpina are the other series names in the range, and the Multi Finish group is a single stone offered in more than one surface, which is how one marble ends up on both a polished list and a honed one.
Format and how a white floor reads
12x12 leads the range with 12x24 behind it, and the large squares at 36x36 and 48x48 are medallions. Format decides how many joints a floor has, and on white that is the visible difference between two otherwise identical tiles.
The contrast between a white tile and the line beside it is the highest in the catalog, which is why the same format decision shows more here than it would on a dark floor. It is also why a white floor is one of the few places where going up a size changes the room as well as the tile count.
Thickness and what sits under it
Most of this range is 3/8 inch. A 1/2 inch group sits above that, and a handful at 3/4 and 1 1/4 inch are pavers. In a kitchen the thickness question is usually about the doorway: a new floor that sits higher than the one next door changes where the threshold lands.
The metric figures beside them are the same tiles described the other way round. Nine millimeters and 3/8 of an inch are about half a millimeter apart, close enough that they are one group under two names. Eight millimeters is a different matter: it sits nearer 5/16, a genuinely thinner porcelain, and it is how European makers list a lighter body.
Mosaic and medallion in a white kitchen
Mosaic is the second largest group and it is usually a border or an inset. A white kitchen with a plain field and a patterned inset gives the room a center without adding color.
The medallions are the same idea at a larger scale, cut as a circle or a square in several stones. They are sized against a hallway or an island.
White floors and white counters
Two white surfaces in one room have to differ in something or the kitchen flattens. Usually it is finish: a honed floor under a polished counter, or a veined counter over a plain floor.
Where the counter is a white marble, a plain porcelain floor lets the counter do the talking, since two figured stones in one room pull against each other. The white slabs range covers the counter side of that decision.
Where else white floor tile goes
A kitchen floor rarely stops at the kitchen, and the decision usually widens once somebody stands in the doorway. Where the same floor carries on into a hall or a laundry, the white floor tiles range holds these colors without the kitchen filter on them.
The other direction is upward. A white floor sets what the walls can do, and the kitchen tiles page covers the backsplash side of that in the same room.