Check the machine specs and factor in access to plumbing and vents. There is no standard size I have realized. Some of the smaller european washers can be quite small and the full size washer/ dryer can also be stacked.

Per Consumer Reports: LG WM3500CW recommended, best buy, front load LG WT7100CW recommended, best buy, HE top load

I love the colors you selected. I would paint the cabinet purple and leave the baseboards white. Then I would find a way to relate the purple and teal. If this were my space, I would paint a purple stencil on top of the teal on all four walls. It is refreshing to see your space. So many bathrooms are just a sea of white.

I recently bought a house with 2bedrooms. I got the smaller room with bathroom not attached. Now, my wife has valid privacy issues with it. Initially we thought we'll add an additional layer of door but that'll look hediuos and the carpenter told us it is difficult to build too. I want help in understand what kind of a separator I could use?