90x34 is a disproportionate size for a shower. If 30'' is all of the width that you can get, then don't go beyond 60'' in length. It's just adding to the complexity and expense without any return in usability. Especially since you want a steam shower. A steamshower should try for as compact of an installation as is comfortably possible, both for comfort's sake, and economy. If you could do 48''W, then 72'' L would be a good proportionate length, and would accomodate two people nicely.

Thanks for the reply and comments hollysprings.

The reason for the odd size is I didn't want to change the present footprint so I figured I'd just work with it. The larger size will probably add about $300.00 to the cost for extra material such as, waterproofing membrane, thin set, tile, dry-pack mud-bed, grout. I've considered that cost in my budget and thought it would allow me to expand to 3 shower heads for convenience. A handheld, ceiling mount rain can, and wall mount shower head via the thermostatic valving..

I've done the calculations on the Mr. Steam web site and determined the steam generator size should be MS225e for max 225 total room volume. I also figured since my wife and I will probably use the steam room together we could utilize the multiple shower heads after a steam cycle.

I've added a "Projected New Layout." as well as a "Total to date expenditure" to aid in members keeping up with how close I'm coming to my budget.

Please keep the comments coming.

Steamshowers, you mentioned Kerdi, when I do Kerdi it's over cement board. Not Hardie. Durock is my first choice, Wonderboard my second.

You'll need to Kerdi all six sides of the shower cube. Ceiling too. And you'll want to gasket the shower valve hole and the shower arm hole with Kerdi so moisture doesn't escape into the wall from those openings.

You mentioned recessed lights in the shower. Look for "vapor proof" lights. Not just "damp" or "wet" proof. Vapor proof lights are gasketed and sealed to prevent moisture vapor from getting in to the housing and trashing the light from within, or from getting through the ceiling hole and into your framing bays. They can be expensive.

Speakers within the shower. Same thing. They have to be able to withstand the steam environment.

Ventilation, the same. Some put a "standard" vent outside the shower just above the shower door to keep things simple.

Music? If you don't already have a set-up, look in to Sonos. It's my whole-house (and outside in my yard) music system. I love it. You can gradually expand it to other parts of you house should you desire. And there's an app for your android.

I recommend porcelain tile in the steamer. Leave natural stone out due to moisture issues.

Steam condensation can drip down on steam users. Some slope the ceiling to help avoid that. Grout lines can act as drip points. Just something to be aware of if you're not already.

Good luck!

Thanks for the reply mongoct:

I've added a "Bathroom Build Suggestions" at the bottom of my original post and added suggestions that I will consider. I appreciate the advice. .

I've been doing some research on fixtures and find the thermostatic systems expensives so I'll have to figure out whether to go with Chrome, Brushed Nickel or Tuscan Bronze.

As for the heated floor, I like Schluter Ditra Heat but wow are they expensive.

As for vanities, my wife liked the quality of a brand called Foremost, but again..............wow they're expensive.

I also never realized just how expensive the Mr. Steam system is........ouch!

I know this is a bathroom basement reno, but It will be for life so I want good quality items. In the end, I guess the budget will determine what we go with.

Building a new home and I really liked the following: http://www.susanjablon.com/bath/photos/mosaic-tile-bathroom-photos.html#bath23 tub and tile combo. Just thought I'd asked for comments. Too much?

You might think about putting the shower knobs next to the shower door opening, so you dont have to walk in and get sprayed with cold water when turning the shower on. All you have to do is reach in and turn the shower on while standing in the doorway.

Rose12

Thanks for the reply.
I understand that people have the own tastes but glass or even 1" tiles don't appeal to me. Most of what I saw was very bright so I'd have to say it's "too much" for me.

rockybird
Thank for the reply.
I'll keep that in mind, over the weekend I'll make a shower layout and I"ll ask for suggestions on where the controls or even the shower heads should go.

Please help me design my thermostatic steam shower layout as I need to get a material list to start looking for them to go on sale.

Since my wife and I will most likely use the steam shower together this is our wish list. I haven't decided whether to go with the thermostatic 7.0 gpm or 12.0 gpm. Please recommend the placement of all fixtures also. I haven't decided to have a permanent bench for the steam shower or a folding one.

Wish list.

Two shower heads with two separate controls for both volume and temperature which we will use the most. At least one will be a rain can as we like those the most.

Hand held shower head, this will aid for washing the shower.

4 body sprays and yes we presently have them in another shower and use them but they don't all have to be on at the same time.

Diverter valve if needed

I've chopped the rest of the bathroom to make it easier. Thanks

Since I haven't' had any feedback I thought I would take a shot at it, I think I may like two rain cans and eliminate the standard shower head on the left side. I may place the volume controls on the left just inside the glass shower door and the temperture controls on the opposite end in the center. .

I posted a week ago asking for suggestions on the steam shower layout and even bumped it couple days later but there seems to be no interest so I'll try one more time.

Any feedback?