Save "spacious and luxurious" for wine cellars.

I don't think it is too big. As far as feeling cold that will depend on your climate, hvac, having a shower door and the height of the shower ceiling.

We have a 6x4 with 9' ceilings and it gets nice and warm,  even with no shower door, as it's a walk in.  It's honestly one of my favorite features of the home, as every time I come back from a vacation, I'm thankful to have lots of space in the shower.  It's something I never thought I would value until I had it.  I think a 5x7 would be totally fine.

We have one about that size. I wouldn't want it any bigger, but it has room for a bench and it's big enough for two people to shower at the same time.

5×7 ft is a nice size for a spacious, luxurious and functional shower design.

Honestly I think it's about 1' too long. The width is perfect.

Mine is 6x6 with two showerheads on opposite walls and I love it. There's enough room for two to shower at the same time or a luxurious shower for one. No problems with being cold or drafty.

I have a 90" X 46" and love it. I don't even have glass! That's the bonus when you go wide like that. you won't need glass walls. (I do have a pony wall up front so water doesn't splash out from below) You may want to consider that.

I think 5 x7 is great I do not like wet room style showers even though they are nessessary if you are in a wheelchair but unless you are already getting there do not do a zero entry for the shower .I hate having to wipe up the whole floor everytime you shower. I think a nice addition to a bathroom with a large shower is a heat lamp when you come out ialso love a towel warmer .

I have two roughly that size- a guest room 4x6 with no door (quasi ada) and my bath is 4-6 x 6x6. Love having plenty of space to shower

So how many folks will be in the shower at the same time? No names pleeeese!

You're probably spending more time in the shower than the wine cellar, so it's not necessarily "too large". But the real answer depends on the rest of the bath layout and if the size adversely affects the function of everything else.

I think 4' x 5' is ideal. That's ample-plenty for one person, and if you go larger, you risk

- the shower head not reaching corners for cleaning /cleaning becoming an onerous task.

- Not being able to reach into the shower easily to reach the water controls (admittedly, I'm small with short arms).

- being too far from the edges /unable to easily reach the grab bars. This may not apply to you now, but at some point it will.

- a shower pan not being available for your size -- and a shower pan is more sturdy /will last longer than a tile floor. If you want the look of a tile floor, you can get a tile-ready shower pan.

- the cost of nice tile and the good glass walls being out of reach.

Ours is 4.5x7 and i really like it. a bench on one end and can hang towels on the other end without them getting wet as long as we’re not using the steamer.

Ours is that size. Absolutely love it! We even leave the door open and we aren’t cold. It’s s nice that the glass hardly ever gets wet so it’s easy to keep clean! We have two shower heads ( one is hand held that helps with cleaning issues)..although we only use that one anyway. As mentioned above… make sure the control handles are close to door( probably more expensive, but they don’t necessarily need to be mounted directly under the shower head).

well shoot the entire Master Bathroom in my 3,000 sq ft house is 4' x 5'!

It takes more time to select, open, pour, sip, and enjoy a bottle of good wine than it does to scrub a sphincter.

I’ve had 4x6 and now a 4x5. I much prefer the 4x5.

How much wall do you feel like cleaning.? I think anything over 4 x 6 is overkill. But that's me