Would you prefer to buy or rent a pre-engineered steel building? Indeed, why rent or lease when you truly can buy? The leasing or renting of a steel building can turn out to be more costly, over the course of time, than ownership. Think of it in terms of owning versus renting your home. At a fraction of the price of more conventionally built applications you can purchase and erect a pre-fabricated, pre-engineered steel building.