Among four industrial type-of-structure categories monitored by RSMeans, a “typical” warehouse had the largest year-over-year increase in construction costs in August 2008 (+3.5% on average for 25 major centers). Next in line came an auto sales garage (+3.3%), followed by a three-story factory and an aircraft hangar (both +3.2%). As for dollar-per-square-foot cost of construction, a three-story factory is most expensive. Among cities, New York was the leader in cost gains, year over year.