They put the absolute cheapest Made 8n India tires on those to move them, and don't replace them, even after the building sat for years before moving the building again. 26 psi in each one.
The only time the tires get replaced is when thry blow out in transit. Yet each oversize move requires a permit and permit fee to the state DOT.
They get a dolly to put those houses on. They absolutely do not sit on tires when they're in parks. Even cheap retreads are too expensive to be leaving under houses.
Too cute for me to put under a building.
But you do you.
Moved classrooms, homes, offices, etc. up to 15' wide on highways.
Theres the building, a metal frame under it with wheels that's permanently attached, thats all I've seen. I've helped the install crew level and set them, helped yank old school rooms out between utility stuff that grew up around them for decades.
I've seen is very old ones that were set decades ago with the tires rotted to shreds with rats running out when it started to move, those needed replacing.
I carried a row of fresh wheels/tires and a lot of jacks in various heights on my toter, which got stocked every day because i used them up.