I don't know. But have you ever had double doors like that in a MBR bath before? I wouldn't....

I like your idea of centering the door and going with pony walls. Then you won't have to lose 4" . It will also give each person a bit more privacy if the shower heads are on either side of the entrance. You might want to avoid putting a shower head directly in front of the door on the narrow end of the shower, if possible.

What we did in our last place and are planning on doing in our new build is to put one shower head centered above and one on the far wall.

I think you have a great 3rd option here but you'd have to post the full 2nd floor. I'm not a fan of this layout because the dressing area is separated from the bathing area by the sleeping area. That means whoever gets up first will be disrupting the still sleeper. Maybe that's not a big deal for you but it would bother me.

Plus you're not sharing walls and plumbing stacks. You could cut down some cost by centralizing mechanicals.

Also linen closet in toilet is odd. I wouldn't want sheets and towels there if there's an alternative.

Attached is the rest of the first floor

Attached is along the lines of what I was thinking...

I counted my tiles in the shower, i am at about 4' deep and 6' wide, and then I have no door like a "g" configuration. Our shower heads are on opposite walls / offset.

I think the above configuration works - but also consider how you will turn ON the shower without getting blasted with cold water.

I am going to use one of the new Grohe remote start / wireless controller things in the new house since the shower is large and I don't want to get wet first.

Great point Jannicone. We have talked about having the on/off outside the shower and the temperature on the inside to avoid that very situation of getting blasted with cold water first.

While you are at it, have the Kitchen Forum take a look at that kitchen plan. The work flow may be a little off. Architects are the worst for planning kitchens. Kitchen planning is a subspecialty.

I don't like the 'end run' through the MBR to the closets either. I'm in and out of MBA and closet a lot. Do you want such a big MBR?

Can't say I love the photo you show -- somehow it looks 'weird'. (And the shower door hits the toilet!)

Here's my crack at it. Have the closets through the MBA, shower on the end wall. You could do a corner shelf between the bathroom and closet entrance, or shelves on the wall shared with the MBR.

Actually I have a better idea, but you'll have to wait till tomorrow...

i truly dont get the dual shower heads, someone explain advantages please. In our 28 years of marriage, only time we were in shower together is when we got frisky ;-)) If we both needed to take a shower, i being the man would just go to our other bath, take my shower and go....

We shower together about every day - as much as that may be oversharing - but it's easier to squeegee the large shower with 2 people. ;-)

Unless you live in a year round warm weather area, don't put plumbing in an exterior wall.

Those are SIPS panels, 6" of foam sandwiched between 2 OSB skins. That wall will be furred out with 2x4's.

My "second" shower head is actually a handheld shower on a slide bar that's located on a different wall than the main head. We used a diverter valve and not another shower valve.