Question: how much does it cost to add a garage bay?
Answer: According to CostHelper, contractors usually charge $35 to $45 per square foot for a basic garage, and up to $55 per square foot for a garage built with higher quality materials. For a basic single-car garage, that comes to between $9,240 and $11,880. A higher-end, single-car structure might cost as much as $14,520.