The average cost of building a steel structure is $16 to $20 per square foot, but with customization, this can cost up to $40 per square foot. If you start with a basic 5,000 square foot building, the price is closer to $9.50 per square foot.Click to see full answer. Also to know is, how much does it cost to build a 30×40 metal building?An average 30×40 steel building cost range is from $9,100 to $11,000*. When broken down into a price per square foot, 30×40 steel building prices currently range between $7.50 and $9.00 per sq ft*.Also, how much does a 100×100 metal building cost? Typically, a building this large is used as industrial warehouse, an auto repair shop or as an equestrian building. A 100×100 metal building cost can range anywhere from $64,500 to $89,750* in total. In this manner, how much does it cost to have a shop built? Most projects range between $4,000 and $50,000. Large and elaborate units can cost up to $100,000. The biggest factor in determining the exact price is size. The materials for a 40 by 60 foot building range between $15,000 and $25,000.How much does it cost to finish out a metal building?Square Foot Cost: $21,600 in total, or $9 per square foot for a straight wall building. Delivery Costs: A general rule of thumb is delivery costs will be 8%, but this can vary. This would tack on an additional $1,700. Materials: The materials for the unit can be estimated at around 20% of the building’s cost.