Home tyre storage

[norseman]

I need to store four 15in (rim size) nearly new car tyres at home.
The best location would be under my park home where they would be placed on their side walls in near darkness & dry conditions 24/7.
Is it better the lay them down separately or acceptable to stack them in two pairs. Should I place wood/cardboard underneath (concrete floor) &/or put something between the tyres if stacked?

Thanks for reading folks.
Stay safe.

 

[Stivino]

How to store tyres

 

[johnny2007]

A piece of plastic underneath will be best, as long as it's flat.
Have a look in tyre shops how they keep tyres, on shelves standing up.
I don't think it affects the tyre much, but i swap winter and summer and always store them flat on the side one on top of the other.

 

[norseman]

Appreciate the replies, both of you … food for thought.