My sister was discussing building a barndo with 12ft walls that will be 40ft x 96ft long. It will have a partition wall in between the house and garage.

I'm running the ICF estimator and looks like about $20,000 for blocks and $14,000 for concrete. So $34,000 worth of walls with insulation.

If you do that in wood you have to do sheathing, studs, insulation, vapor barrier and will still have an inferior wall.