With those materials a two car garage should cost about $20,000.
* Having a contractor build a standard garage typically runs about $35 -$45 a square foot. Contractors.com says the minimum size (enough to park a vehicle) for a single-car garage is about 240 square feet, or $8,400 -$10,800; for a two-car structure it's around 380 square feet, or $13,300 -$17,100.
* AskTheBuilder.com suggests that a "dream" garage with plenty of room for two vehicles (without having to squeeze to get into and out of them) plus adequate work space, lighting, ventilation and attic storage requires 800-850 square feet, at $29,000 -$38,000 or more.
* Upgrading the quality of materials can bump the cost to $55 a square foot, or $13,200 for a minimum single-car structure, $21,000 for a two-car garage and $47,000 or more for the dream version.
* Accomplished do-it-yourselfers can cut costs considerably; materials for a single-car garage with a door but no windows start at $3,000 -$4,000, depending on the size and style. Kits with pre-cut or pre-fab materials to build a steel or wood garage run $5,000 -$14,000 or more, depending on the size of the structure and the quality of materials.