It does if you buy smaller type residential furniture. For example we recently replaced the recliners with two from Lazy Boy. The lazy boy recliners come apart for transport the back separates from the seat. The bottoms barely fit through the doors. I amost had to take the reclining handle off so they would fit.

Some RV'ers have removed windows to get furniture in. It's a little more complicated and you need to make sure the window is sealed well once it is replaced.

So far we have brought in a desk (it is only 18 inches deep) and a new queen size mattress (Sleep Number).

If we replaced the sofa we would have to remove a large window that is in our living area.

We replaced the original couch and two recliners.  The recliners were replaced by a La-Z-Boy love seat recliner.  The backs came off and it was easy to turn the love seat bottom 1/4 turn so that it was at one side and could easily go in through the entry door.  Just be sure to measure your door at the narrowest point.

Terry

We replaced the 2 RV recliners with a residential loveseat without any issues. The biggest issue we had was getting rid of the RV couch, getting that out to replace with a small desk and coffee table was definitely more challenging than any of the furniture we moved into the 5th wheel. Definitely ended up with more room and a more livable workspace for both of us.