Marble flooring take maintenance. Pee is acid and will etch marble if it's not wiped up quickly.

Urine on marble requires immediate action because its acidity causes permanent etching (dull, white spots) and absorbs into the porous surface. Clean with a pH-neutral cleaner or enzyme spray like Nature's Miracle, then use a baking soda and hydrogen peroxide poultice to lift stains and odors.

Steps for Cleaning Urine on Marble

1. Blot Immediately: Use paper towels to soak up as much urine as possible without rubbing, which can spread the stain.
2. Clean Area: Spray with a specialized enzyme-based, neutral pH cleaner safe for natural stone.
3. Apply Poultice for Stains: If a stain or smell remains, create a paste (poultice) of baking soda and water (or hydrogen peroxide for stubborn stains).
4. Cover and Wait: Apply the paste 1/4 inch thick, cover with plastic wrap, tape edges with painter's tape, and poke small holes for breathing.
5. Dry and Remove: Let it sit for 24–48 hours until completely dry. Remove with a plastic scraper and wipe with a damp cloth.
6. Re-seal: After the area is fully dry, apply a high-quality stone sealer to protect the marble

What to Avoid

• NEVER use vinegar: The acid will immediately etch the marble, causing lasting damage.
• Avoid acidic cleaners, lemon juice, or abrasive cleaners.
• Do not leave urine to sit, as it can permanently etch the stone.

Yep, marble has been around for centuries and it has worn and etched and patinaed. Are you ok with that look in your home? Most Americans are not. We tend to want the nice new look using an old, wearing material. We want to have our cake and eat it too. Alas, we cannot.

I hate a marble floor in a bathroom because they are slick as an ice rink. I don't care how many grout lines. And I just don't see the value in spending on marble for a laundry room.

You posted a pic yesterday of a large diamond checkerboard floor for a bathroom, but what about using it in the laundry room instead?

In the areas you mention, since you love it, and it will for sure be beautiful, go for it! There is a tuscan kitchen thread with a tile floor. As a rule (and I get they are cool in warm climates) I would never choose tile. It's such a PITB to change later, it's very hard on joints, it is unforgiving when things are dropped, and in larger rooms the acoustics are horrid! The kitchen referenced will be a nightmare to remove.

Maybe Chispa can link you to the porcelain she used in her bathroom. It looks good.

@Beth H. : has a marble bath floor she's spoken of previously. Hoping she'll see this.

I remember looking at the marble floors in St. Marks Cathedral in Venice, Italy, and thinking how beautiful they were. Did they look crisp and new - no. Did they look worn, pitted and a bit discolored - yes. Any flooring will age over time but marble is going to experience a lot of ageing. So, if you are ok with that would recommend you follow your hearts desire and install in your bathroom.

I have Thassos marble flooring in my master bath. It was a last minute switch out for honed calcatta marble which would have matched my coutertops and shower (no problems with those areas). Thassos is white as is the marble you are considering. It has stained a little around the toilet in the last 11 years but still looks nice when clean. I do not follow the 6 steps cited by Beverly when urine "happens."

I did install a dolomite/marble mosaic on my guest bath floor. I have dolomite in the shower walls with a mosaic white on the floor. It has held up well and I am very pleased.

Only YOU can answer your question. If you’re willing to be okay with the inevitable imperfections go for it. Since it wouldn’t be that important to me, especially in a laundry room, I’d skip it. we have marble countertops in our guest bath ( put in by the previous owner ), having them removed very soon, I’m a little too OCD for them but YMMV. But they can be beautiful …..

The only reason I risked marble flooring in my primary bath is that I am the only person who uses it—and I sit to pee! My guest bath has ceramic floor tile. I would not dream of using marble flooring in a bathroom used by men, let alone little boys.

I may yet come to regret my marble for the safety reasons Kendrah mentions. But so far, so good. The walkable floor space is tiny, and I have grab bars. If I have to put safety matting down at some point, I'll do what needs doing.

In our case it wasn’t our grandson, it was our granddaughter who spilled gawd knows what ? onto our marble countertop, even a marble restoration company couldn’t get it out , lol.

We live in a on old home with a marble floor in the entry - it looks pretty fabulous with all the wear and patina, it’s nice it’s worn fairly consistently over its many years vs being new with worn spots (which is a different look) I love patina but not in a bath, i like crisp and sparkly in there (but probably bc there’s so much wear & tear in the rest of the home 😅)

I wouldn't choose marble for a bathroom -- cold as ice underfoot and slippery. The first problem you can remedy with underfloor heating ($$), the slipperiness you can't.

I recently turned an art deco dresser into a kitchen island. Was advised by the countertop supplier that even with the first splashes of lemon juice the marble top that I wanted to use would etch. You will be using cleaners that will possible etch. In my post above about the marble floors in St. Marks I don't know that cleaners were ever used that etched the surface but it was etched none the less.

No advice, just food for thought:

We bought a 30-yr-old home last year with 8x8 polished marble tile floors in all the baths (black marble in the powder room). The previous owners were 2 elderly men, so their "control" wasn't great, plus DH is getting older too with the inevitable prostate issues. Add to that we have 5 young grandkids, 2 of whom haven't got the potty thing down pat yet. AND harsh cleaners have been used on the floors.

In short, the marble floors just look spotty & messy. If after 30 years they haven't developed a charming patina, then I don't want to wait another 30 years to see if they will. (Not that I'll live that long anyway.)

Thinking about trying some kind of acid wash to knock off the polish. At least the spots would be less noticable.

You are not wrong choosing mosaic tiles. Also have been used for long time in history. Every home tell different story. If you feel you would love mosaic tiles is fine just need to be combine with the correct combination. Because of your reference photo I feel you are looking something very minimalistic and plain. But What I would do is play with the different tiles in the wall or the carpentries to give some caracter to this tiles. I will attached few photos what you can see there is some small contrast between the floor and the tiles.

SO off topic to a degree but I had a husband and 3 boys the rule you sit to pee or you clean the bathroom, there are kids in many countries that do not pee standing up and either do the men.I have never figured why this is a must . I think I envy the men's ability in the bush not in a space that should be as bacteria free as possible .

We stay in a hotel in Rome that has all the floors and the entire bathroom in marble installed in 1946 still looks like new . bet lots of pee over the years but cleaned all the time