Quad Bunk Class A

No, but a custom could be built for you, probaby 40 footer and around $250,000. Then it would be restricted from some sites due to length.

Finding a Class A with bunk beds and master bedroom is difficult, quad bunks will probably be a custom order like trop-a-cal mentioned.
Let us know if you find the Class A you described. I'm sure others would be interested.

Sadly, class A floorplans for families are pretty limited and there are a lot more options if you stick with towables. Nothing like describe exists - the closest you'll get would be something with 2 bunks and a drop-down bed in the front (e.g. Fleetwood Storm 32BH (http://www.fleetwoodrv.com/storm/floorplans/32V or Thor Palazzo 33.3 (http://palazzorv.com/floorplans.php).

If you want something driveable, you'll also find suitable for 6 in class Cs (with the over cab bed - pretty much like the drop down bed) but I don't know of any class Cs with 4 bunks either.

If you are in the market for used, the best option would probably be the older Newmar All Star 4156 which had an unfinished 'imagination room' at the back where you could easily put 2 sets of bunks.

Even custom built, if you are looking at new, the only ones I've seen with 4+ bunks are the 'entertainer' bus conversion which are probably more like $1+ million (sadly I do not think you would be able to get a custom built coach with 4 bunks for $250k unless you are updating a used coach).

Let us know if you find anything.

How about a Jayco Seneca 37FS WITHOUT the entertainment center, which leaves you with a huge overhead bed...plus the bunks and rear bedroom.

As I indicated on a previous post, I would look at the Damon/Thor Outlaw toy hauler. It has sleeping in dinette and a couch as well as queen in loft area. The large toy hauler area is perfect for at least two sets of bunks. You could hang them from the wall so they fold up or build permanent bunks. With the height you could easily have tri-bunks on both sides for six sleeping so they can bring some friends and the space has an outside door and door to the main area. It is a gas motorhome so if they is a deal breaker then disregard.

You might try a sight where they advertise used tour busses. I've seen some that might fit your needs and they are sometimes priced right. (Bus for sale.com) is one site. Just a thought.

One option.
Another option.
Fleetwood has an overhead bunk and bunk beds in these models.

Good choices so far. Not interested in a bus as I want slide outs. In any event the Thor outlaw is interesting. Anyone been in this loft bedroom? How hi is it?

Anything with a bath and half with the rear master bath could be converted to quads. Newmar will do custom work.

Here is my class A quad bunk motorhome. I have put much effort into it to make it comfortable for my family. We have 4 kids of our own and are getting ready to go out for a one year Odyssey. This motorhome answered our question that you pose. How can we have quad bunks with a separate bedroom and have privacy and be comfortable for a family. I used my knowledge of RV's to find what I think it an acceptable answer. Feel free to give me feedback. We have been RV'ing since 2007 and own two motorhomes.

www.aughinblog.blogspot.com