Mobile yurt floor

Hello,
My first post on permies and I'd like to express my gratitude for this resource.

Here my thought/ question:
For a 5.5m yurt by FingerJurtta I will need t build a 5.6m floor, which needs to be mobile enough and insulated.
A SIPs-like construction is going to be too big for transport.
Can you please comment on this idea:

Components:
-car tires (to be sourced at new location)
-ground sheet (to be taken with me when moving)
-leca (or other insulation sourced locally when moving or taken with me when only moving small distance)
-cover for leca (like groundsheet, to be taken with me when moving)
-plywood or OSB board as floor (8 interconnected identical pie pieces around a central octagon, all to be taken with me when moving)
-coir matting (to be put ontop of the floor panels)

So the idea is to put package the car tires with the leca between two layers of groundsheet material and then lay the floor with the coir-matting on top.

Does this make sense? Do ynot see any problems with this constructions?

Hi Huck! Welcome to permies!

I think it might be worth considering alternative types of insulation, because it might be less toxic than kiln fired material, like:

Jami McBride wrote:
Wool batting
Felted wool (think Mongolian yurts)
Cotton batting
Compacted straw
Straw slip
Recycled materials - paper, cardboard, plastic....?

I might also be worried about potential off-gassing from tires.

I am thinking a smaller version of this Mongolian yurt might be a good alternative method:

Do you actually need the car tires? They can be quite easy to get for free, because it is a hassle to dispose of them responsibly, often costing money. If you were to move, you'd find yourself with how many? sixty or more tires to get rid of?!
You might regret that.

It seems to me that you could keep the LECA in bags and adjust how full the bags are or how they are placed (flat, on their side, or standing) to adjust for uneven ground quite easily.
Then, if you were to move... the bags are already packed, so to speak...

You need to contain these bags within your site, maybe drive a LOT of wooden stakes (pointed sticks) around the circumference (every 6 inches/150mm) to contain the lower ground sheet and the LECA bags.

Using three cargo straps (or six, for two bands) (2 inch/50mm wide x 24 feet/6meter) joined end to end, you could reinforce the ring of stakes and also capture the upper ground sheet. As a bonus, the straps will be useful when you move.

Maybe instead of plywood/OSB (with formaldehyde glues) you could use wood planks, or boards from shipping pallets (available for free often). When moving, you could sell them as boards or firewood, and get more at the new site.
Maybe you don't even need to cover the whole floor area, so you need less? Not under your bed? Just under the yurt walls? the furniture? the stove? high traffic areas such as near the entrance?

Or maybe your furniture has flat bases instead of legs, so that it "floats" rather than sinks in, and then you don't even need the plank floor at all!