Okay, let’s calculate this. George has a mix of project management, value engineering, and interior design skills. In the US, project managers with similar experience can charge around $75-$125 per hour, depending on the industry and location. Interior designers with similar experience can charge around $50-$100 per hour. Considering George’s diverse skill set, I’ll estimate his hourly rate to be around $75, which is slightly above the lower end of the project management range and closer to the interior design range.