Have you considered which type of soil will be the best foundation for a new metal building? You will want to have a very stable foundation that will not move or shift in any way regardless of weather, such as rain and snow, or even flooding if you happen to live in a flood-prone area. You want a foundation that has good drainage and will avoid water pooling around your building.
So what is the best soil for your foundation? This infographic by Get Carports looks at the effects of common types of soil on metal building foundations.