If you are in an area with higher-than-average cost of living you can use $50 to $55. If there are complications or you prefer top quality materials and components the price can go up.So, generally speaking, a 24 ft.sq., two car, basic garage will cost in the range of $17,000 to $23,000. This can serve as a very rough basis.
http://www.behmdesign.com/garage-building-cost.aspx
1 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.
http://home.costhelper.com/build-garage.html
Grittihs) we got a quote in less than 45 mins. for a 1.5 car garage the estimate is $12,354 for a 2 car garage (with a short approaching driveway) will cost us $16,325 this includes the demolition of old garage, 30 year roof, all electrical, slab, garage door, an entrance door and 1 window.
http://home.costhelper.com/build-garage.html
In the example given above, the 728 SF garage and 380 SF loft totals 1108 SF. With some frills, it should cost $35-$45K/SF or $35000-$45000. DIY. One way to save money is to buy materials, perhaps a kit, and do as much of the labor as you can, contracting out what you cannot do. Excavation and foundation will cost $15-$20/SF, the higher end for northern frosts or poor soil anywhere.
http://thehousingforum.com/how-much-does-it-cost-to-build-a-garage/
1 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.
http://home.costhelper.com/build-garage.html
This means a 240 SF single car garage will be about $9600-$12000, a 380 SF two-car garage around $15200-$19000, and the 768 SF three-car at $29210-$36400. Upgraded materials can raise this to $50-$65/SF making, for example, the 380 SF two-car garage come in at $19000-$24700.
http://thehousingforum.com/how-much-does-it-cost-to-build-a-garage/
But for now this will get you in the ballpark of cost to build your new garage. Foundation/Slab Cost: $_____________________________________. The most reliable method for rough cost estimating of concrete foundation and slab work is to contact a local concrete contractor-one who specializes in this work.
http://www.behmdesign.com/garage-building-cost.aspx
1 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.
http://home.costhelper.com/build-garage.html
The size you choose will be the major factor in overall cost. The minimum size for a single-car garage is about 12′ x 20′ (240 SF). A two-car garage minimum structure is about 20′ x 20′ (400 SF). A 3-car minimum is 32′ x 24′ (768 SF).
http://thehousingforum.com/how-much-does-it-cost-to-build-a-garage/
by Jay Behm-A very basic way to estimate the cost of building a detached garage is to simply apply a typical average per square foot construction of $30 to $40. That is for an average cost basis for having a contractor / builder build a basic one story garage for you on your property.
http://www.behmdesign.com/garage-building-cost.aspx
cost to build a one car garage
The cost to build a one car garage is between $3,000 and $4,000. The cost to build a one car garage is $3,000 to $4,000.