Thank you so much Lyn -- this is so helpful! It looks like our contractor is right to steer us in a different direction!!

I love marmoleum - there are click loc planks - I wonder if something like that could work

https://www.greenbuildingsupply.com/products/forbo-marmoleum-click-cinch-loc

Marmoeum comes in more than one with 7.5' for large spaces is a choice . This has been around for a long time and can certainly work in the style you are going for but you do not show us the one you are thinking of so post that here. Never seen the click one but what I have always loved about is the fact it is wide with minmal seems . You need to talk to an actual marmoleum company with their installers for sure .

Thanks all -- much appreciated. The installer we consulted felt the click cinch was not a good option for our project. We were thinking of the Terra Alpine Mist in the sheet product. We are going to go with white oak flooring...it just feels like too much of a risk to go with the Marmoleum. Appreciate the comments/input!

I have it installed in a sheet in one of our bedrooms. I hate it. Always looks smeary, apparently needs some special kind of buffing pads to shine it up. Despite light use it has a lot of marks and scuffs.

Don't do it.

Good idea to go with wood floors.

Yes to wood floors. That expanse of marmoleum makes a chill run up my spine thinking of hospital floor applications.

Nothing beats a wood floor.: )