We are looking for our first rig, and I am also looking for places to put the litter box. I have seen at least one 5th wheel (that is not our unit of choice, so I don't know if it is common) that had an access door to the basement. Perfect for box placement IMO. Since we are looking at class As, I find that the single baths (vs a split bath) has more room for the box. I prefer to keep the box out of the living area. Note that my cats tend to be exuberant diggers, so it can go no where near carpet.

Trace, I looked at youtube vids of an Openrange 386FLR.

Question, how willing are you to make modifications? One though occured to me was to cut a secret passage from the bedroom down into that huge basement area. Enclose the box and the passage such that it's not open for unintended "cat-ventures"(TM). You could then pull out the cat box for cleaning with easy access in the basement. Perhaps put the entrance in a discreet spot under the bed or something. Could be tricky going through the floor but Open Range should be able to help you out with potential wiring or duct work issues if you can't see anything from inside the basement. Another possibility would be to cut an access in the short wall under than section where the railing that divides the living room from the kitchen, don't know what's behind that short wall but there might be room.  Other than that I did not see any other possibilities without resorting to more conventional litter box options. I've heard of people putting them in the shower and taking it out when humans need that space. Just remember, when it comes to cats, we're using their space with their permission. Been I long time since I had a cat, so my cat accomodation skills have gotten quite rusty.

Trace, I do like the "idea" of some of Brian's ideas - not sure I would be brave enough to cut into anything though - probably that's just me. The idea I do like, especially considering your HUGE bedroom is the piece of "cat" furniture that could discreetly hide the box. That is something Lee could easily make and cover with rug scraps (especially if you aren't going to declaw - he/she would need something/someplace to scratch) - then it would serve 2 purposes! And actually - cats LOVE perches to sit on - 3 purposes!
Don't know if you remember l, but we have ours in one of the slider closets and we just leave the door open just enough. Twice daily scooping is a MUST!

Hi, I am planning to be a full timer with two cats. I would have a cab and a half truck and a travel trailer. I am not as worried about the litter box as to where the cats will be while I am driving. Can they stay in the travel trailer or do they need to be in the truck?

We keep a dome type litterbox in the back bedroom on tile floor near 2nd lavatory (the majority of the bedroom is carpeted). We move it into the back hallway when traveling. Our cat was declawed in front when we adopted it but even with back claws they can scratch some furniture but it sure is handier than walking a dog and it doesn't bark.

Without knowing your floor plan - it would be impossible to comment on where to put a cat box - can you tell us what RV you have and/or post a pic of the floor plan?

Just an update guys, I saw these litter box online which has different sizes kinds and features. They also have this litter kwitter system which trains a cat to go to the bathroom whenever they need to go and to hop up onto the toilet to do it, the materials are made materials that won't bend, flex, crack, split or move no matter how big is a cat.  Do you think that litter kwitter is better for travel versus the traditional litter box? I like to hear everyone's thoughts, though.

My experience is cats train their humans more than humans train their cats.  But I am not Dominique of Key West, https://www.catmankeywest.com/, who puts on a great show.