Partition or Support Walls?

The position of those elements could provide some marginally effective stiffening along the major axis of the structure, which you shouldn’t need if your traveling days are over.

I do a lot of work in mobile homes and can tell you that everything comes up from the floor. No utility is going to be in those columns unless it is a sewer vent.

Yes Redfred #1....more info needed.

If load-bearing, I wonder what might be the 'load' - something heavy unseen above to be carried ?...or is the ceiling part of a self-supporting structure with only it's own weight to carry...

If no obvious load above, I would use prop s- as in #5 - and take out the posts - then slightly release the props to see what sags.... and if alarming - hurriedly put the post(s) back.

You then keep the them in place and 'decorate' to blend in...(or still in #5 use) something to stiffen the beam if you want an open area.

You need to find an access to the attic space, pop your head up and use a strong flashlight take a bunch of pictures with a hi-def camera....then study it carefully....There are many varieties that are specific to year built, manufacturer, codes adhered to, particular model....all different...

https://en.wikipedia.org/wiki/Mobile_home

http://homeadditionsremodeling.com/home-addition/mobile-home-addition-part-1-adding-a-home-addition/

It's possible you can shore up the sides and overhead by adding some 2 by 8" framing around the opening, then removing the center structure....I would have some ceiling jacks to support the overhead beam as a safety precaution...I would probably add a 2x8 on each side of the overhead beam and 2 on each side, depending on the length of span...

This could be a great alternative. Thanks.

There is no substitute for involving a local building designer in such a project.

It is not possible to obtain an accurate answer from a single photo posted in a global Engineering forum, or at least, one that provides an appropriate level of indemnity protection for things going wrong. Whom does one sue if the thing falls down (rhetorical question - NNTR)?

It appears that the white posts do not touch the ceiling,so they cannot be supporting anything, but the cubby posts are a different matter.

The best advice in this situation,as others have said,is to consult a local authority or expert.

Most inspectors are very knowledgeable on structural issues.

I'll guess partitions.

no need for structural support or utilities to be there..

(from this view)

Following points may give you fairly good idea:

1) All the exterior walls of the building are load bearing.

2)If you go to the basement you will find the beams running from one side of the room to the other.The load bearing walls would be above those beams.

3)See how walls are positioned in relation to the floor joists in a building.Go to the basement and see. Walls that run parallel to the joists are not typically load bearing whereas those that run perpendicular to the joists are most likely load bearing.

4) Typically significant amount of house's structure rests in the center.Walls located in the center of a home are most likely load bearing.

5) BTW have you tried to obtain a blue print from the local authority's building proposal department ? That will be a sure way to find an answer to your query.

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The white columns don't appear to go all the way up to the ceiling so they are not likely to be load bearing. However the small section of blue wall would be a bearing wall. This is more opinion though because the single picture doesn't tell much of a story.

I just noticed that there are two darker dots in the white horizontal beam that might be recessed lights. If true then this might be the electrical wiring path to outlets on either the wall with the door or to power the nook. The white columns then might be providing needed support for the white horizontal beam.

I suppose my best bet is to tear the panels off and see where I'm at. The panels need replacing anyways because the tile was already peeled off. I'll post pictures again once I open it all up.