Is it a pattern?
You probably won’t have enough repeat?...
can you swap the tiles use this in a bigger bathroom?
Show us the tile! :)

Here it it. I found similar ones in smaller size but they are backordered until November :-(. We are going to be ready for floors in 3-4 weeks.

I doubt you will notice with a black grout, and off set installation. What are your shower walls and shower FLOOR

Too big

I like 12 x24 porcelain tile even in small bathrooms but I usually use them on the bathroom floor and the shower walls to make the space feel larger and of course to also have fewer grout lines . That tile could be pretty busy in s amll space could you maybe explain why black too.

Here is an inspiration bathroom. The floor tile looks pretty big to me. My shower floor won't be 100% black. It's a hexagon mosaic with white, black and grey. Walls will be white in 12x24.

Olas · More Info

I like the black floor tile! I think it looks classy. I found another picture with similar tile. I think depending on the way they are laid and how small the room is, it could look fine. Like you said, half the size might be ideal, but I don't think the longer ones look bad either.

Just make sure your tile person understands how to lay oversize tile, because offsetting them by too much can lead to lippage...