Average Weekly Hours of Production Employees: Construction: Foundation, Structure, and Building Exterior Contractors in Michigan was 36.20000 Hours per Week in January of 2021, according to the United States Federal Reserve. Historically, Average Weekly Hours of Production Employees: Construction: Foundation, Structure, and Building Exterior Contractors in Michigan reached a record high of 38.30000 in January of 2014 and a record low of 33.40000 in January of 2007. Trading Economics provides the current actual value, an historical data chart and related indicators for Average Weekly Hours of Production Employees: Construction: Foundation, Structure, and Building Exterior Contractors in Michigan - last updated from the United States Federal Reserve on March of 2024.