If I understand correctly, this is what you have now -- or maybe the vanity runs the other direction?I'd suggest something simple like this:- We took out a tub and replaced it with a same-sized shower. It's a nice, comfortable size. I don't really see any other options for your shower space; this one piece is really kind of locked into this spot. - This places the sink dead-ahead when you open the door, which is good because the sink gets more use than anything else in a bathroom. It'd be about 3' -- not a huge vanity. You could go with a pedestal sink, but you wouldn't be able to have a storage cabinet right next to the sink, so it's not an ideal situation. - And it moves the toilet over by the window, but out of sight -- and slightly behind the door as it opens the other direction. - It's economical because it keeps the water all in one wall. - Then I'd place a freestanding cabinet of some sort for linens behind the bathroom door -- or it could be a hamper. You could also steal some of the ample shower space for a tall, skinny storage spot, something like this -- no one ever says, "I just have too much storage!": - I agree with enlarging the door. My bathroom door is 28", and while it's adequate, you have the space here to make it better. On the other hand, you could move the toilet behind the door, something like this, which would gain you loads of drawer space in the vanity: But let's do the math: The bathroom is 67" deep ... and a typical vanity is 19" and a typical toilet 27-30" deep ... so you'd have only 15-18" of space between the toilet and the vanity ... I don't think that's enough space to meet code.

Here's what I came up with. I can't see the point of having the toilet in such a large room. However I can see having a larger shower for the master bathroom, so I switched the shower and toilet, and moved the vanities to the outside wall. I then gave you a pocket door from the bedroom to the master bathroom. I squared off your master closet and moved your door to your room down a bit. Now when you walk into your bedroom you have a path to either side of the bed without having to make a jog around the bed. Your toilet closet is 5'2" x 3' wide which is plenty large. You can do as I'm doing and add a frosted glass swinging door to the closet to get more light into the room. The shelving area can be shelves, or a narrow closet, or??? The shower is now whatever the width of the room was by 5'2". A nice sized shower. I moved the entry to the closet down also.

Actually... It's 91" wide. It's actually okay as long as you get true sink vanities, which are only 21" deep generally without the counter and about 22" with. Can't use kitchen cabinets though. I forgot about the difference. Duh. With 32" tub and shower, that leaves 37" clearance from her plans to the vanilty, which is fine. Down to a 24" clearance just in front of the toilet is to code and 27" is fine for just that area. My plan, with tub to left of door, allows for a nice 6' tub and a shower that is 55x36, which is more usable and way more luxurious than a tub and shower that are 32x60. You can deck mount a faucet at the end of the tub. Refining the plan, under the window would go an extra narrow (18") built in hamper/cabinet to give plenty of room for the shower and tub. The toilet would be against the LEFT wall, not the front wall. Then you could do a U shaped counter with 48" of cabinet front on the left wall and 66" on the back, plus fillers. Minimum clearance in whole bathroom would be 36" from hamper counter edge to bath tub and slightly more from toilet rim to tub filler pony wall. My plan gives a 3' tub entrance and shower entrance.

The Cook B Correct! Have to create a slope to the drain - curbless means you need to place the drain lower than the floor in the bath. Otherwise you get water everywhere. The reason this matters? You said keep costs down. A funnel drain runs less than $30. A liner drain - drain alone, for that size can be $300 or more - plus the cost to slope your floor. Have you figured out how to slope your floor? Jack hammered concrete slab to slope floor down to linear drain - curbless shower entrance is just behind crystal stone wall: