Newbie question about anchoring furniture

[Heddy]

Hello! New to this, currently converting a shuttle bus to an RV. I know I’m tearing out the cloth and insulation on the walls, and installing new insulation and more aesthetically pleasing paneling. I will then be adding a bed, shelving, cabinets, etc. My question is, do I install all the paneling and complete the walls, then anchor the furniture (thinking lots of L brackets) over the wall paneling? Or put in the furniture, anchor it to the wall itself, then panel around the installed furniture? I’m so so new to this, so my apologies if I haven’t referred to anything correctly, thank you for any help!

[Oscar1]

Hello and welcome.
Can you give us more details on your bus please. Many shuttle bus makers use a core product similar to this please search Nida-core.
This a structural Fiberglass wall support and removing it can cause structural damage you might not be able to repair. Is this what you are referring to as insulation?

[Heddy]

I attached two pics, the removal would just be the cloth on the walls and then recover with paneling.

[Oscar1]

Thank you for the clarification, in your first post you said you were taking out the cloth and insulation. In another thread a member referred to the aforementioned structural material as insulation. Your exterior walls may or may not have any internal backing in them strong enough to support attaching to. Best possible location would be where factory attachments like rails and shelves already exist. Removing something like a speaker or interior light might give you an idea of how your wall core is constructed. Just screwing little L brackets in to panelling will not be enough support in the event of a collision and would likely eventually shake loose just from road vibrations.
Good luck

Oscar

[Heddy]

There is some insulation under the cloth we may replace, but it’s not the kind you pictured. I attached a stock photo of what it looks like. Thank you for your suggestions!

[john61ct]

L-track used for aircraft seats and cargo

gives a lot of flexibility

[Danjo]

I haven’t worked on a shuttle. Seems like epoxied wood anchors might be the way to make attachment points?

[LargeMargeInBaja]

2003, on our ExpeditionVehicle, we used Simpson StrongTies.
These are structural-rated for stand-still buildings such as residences, offices, and warehouses -- human occupied areas.
.
We bolted through the floor and walls using stout bolts.
Although we designed to t-n-t* cross-members, we have enough three-dimensional anchors, our furniture is secure.
.
A point to consider:
* triangulation
Anchoring through the floor plus through a wall plus linear bolting to another furniture probably adds three-dimensional strength compared to simply screwing into the bus wall.
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I believe a metal structure can offer better resistance to shearing or pull-out compared to GRP or composite.
My suggestion:
* aim through structural cross-members and struts.
Bolts through instead of screws into.
.
.
* t-n-t is 'through and through'
The shorthand is often used to describe a type of gsw (gunshot wound).