“Leaks onto the floor” comes pretty close. And is a slip hazard, big time.

Those have no curb, that is a raised shower floor and requires the entire bathroom to be a wet room (or at least 5 or 6 ft out) plus there may very well need to be a drain in the bathroom floor as well as the shower. I see nothing good from that type design if it can at all be helped.

So why are you showing curbed ones? The curb has really no way to make your bathroom look small it keeps water where it belongs and if you want help we need to see your bathroom please.. IMO the 2 pics are great examples of what not to do in small spaces with too many choices of finishes..

OOPS needed to be more awake . Please post pics of your room here in comments then we can help

I would only expect to see a raised shower floor if it was a remodel/addition on a house that had no floor joist depth to add a drain. It should never be a choice in a new build.

In FL, with cement slabs, they actually frame out the shower base so you end up with a "recessed" area in the cement slab to allow for the depth of the drain.

I always wonder why OPs ask a question then wait days before replies .

They have a life outside this app..:

Low curb shower for a remodel. Using the same tile for bath and shower floor “extends” the floor thru optical illusion. . A clear seamless glass shower enclosure/door also gives the illusion of larger bath. Not too busy soon outdated tiles or dramatic shapes. Can be small tiles like penny is one example.

I can’t seem to reply to each post individually, but it’s clear this group isn’t a fan of curbless showers — all of the above definitely applies. My bathroom was originally going to be curbless, with the floor sloped toward a linear drain at the far end of the room. Unfortunately, my contractor accidentally filled the floor with concrete to level height, so that option’s out.

A curb does take up space, and it’s already a very small bathroom. If I elevate it, I’ll make sure to have a framed-out door. I might still go with a curb but keep it as minimal as possible — maybe around 2.5" wide and 2" high. Thanks for all the input!

Recessing the floor is my favorite option, but not possible at this point. For reference, I have a big, high curb in my current house, and even with a glass divider, water still escapes when my larger husband showers — splashing is real!

You understand that there would need to he a drain and the floor wouldn’t actually be level so water drained to the drain. It seems like your contractor is setting you up to fail here.

lol there's a linear drain see my post, it's just covered up by the tile as i work out placement as it's a creative layout. eveything will be sloped just fine

the tile intially was meant to be flush with the floor a mistake was made and i can't do that anymore, there is a linear drain on the window wall just hidden

So there is or isn’t a linear drain with a correct slope? Two comments ip you said the contractor levelled the floor so that options out. Which is it?

There is a linear drain with the correct slope, but it won't allow the tile to sit flush with the existing concrete floor. As you can see, the tile is raised above the floor because the concrete was poured level with the existing surface, rather than recessed enough for the tile to align flush with the top of the floor. We intially had a recess and someone filled it accidentally. It's not complicated and it's fine. We just can't go curbless seamless from tile to floor

Good luck with your bathroom! Seems you’ve got it all under control.

You'll want to check these numbers, as I pulled them from Google's AI response.

• The International Residential Code (IRC) mandates a shower curb be a minimum of 2 inches high from the top of the drain.
• For every foot from the drain, the floor should drop 1/4 inch.

If your shower floor drops ¼″ per foot of slope, it will take 8 linear feet of run for that slope to create a 2″ difference in height (from drain to curb).

Looking at your photos, you definitely do not have 8 linear feet between the wall with the drain and the toilet, which is why the entire floor would have needed to be sloped to create essentially a room that drains. Even with a step-up, you can only achieve this slope and ultimate "curb" height in 8 feet or more, so again, you would need to use the entire room and then potentially have a step/lip up into the room.

The room will look more cohesive and be less of a tripping hazard if you have a shower curb. Presumably you will also have a shower door, so users will be pausing to open the door and enter a shower, expecting a small step over and into the shower. Putting a lip in the middle of the floor or at the entrance of the room would be a significantly bigger tripping hazard.

One more quick search turned up "Hydro-Blok mini-curb" that might give you as narrow of a curb as you can.

I used a Schluter shower kit in a remodel years ago that came with a curb. I cut the curb down to the appropriate height to provide a sufficient curb to keep water in. Depending on your shower door situation, the curb may need to be wide enough to support the weight of the door. Here's a photo of the shower I built with the Schluter shower kit including curb. There's a center drain, but I was still able to do a lower curb than the original.

You need a curb. The glass doors sit on top of this one. It’s fairly narrow and is level while the shower floor behind it slopes down to the drain.