Rick McGaha R&M Design Group LLC Failed Inspection Reports, Very Excessive Delays, Poor Project Management Roswell Georgia!!. How long should it take to build a simple detached two car garage? Many have told me about 3 months, definitely not more than 6 months. 16 MONTHS later, all I have in my ripped up back yard is a plywood structure, which has been exposed to the elements for over 6 months now to the point where some of the wood may need to be replaced. Issues include: Two failed footing/foundation inspections Three failed framing inspections One failed fire inspection report Follow up communications were often incoherent, unreliable, and delayed Be very careful before hiring R&M Design Group. My experience is one of the worst I’ve ever been through. Lessons learned when working with contractors: No large down payments (in my case, he asked for 50% up front). Instead, make smaller payments as sub tasks (electrical, framing, etc.) are completed AND pass inspection.