The City of Cottage Grove, MN developed Grove80 Apartments as its first market-rate, non-restricted multifamily complex in nearly 30 years. The project outlined the construction of a modern four-story residential structure supported by a concrete podium. County Materials was relied on to manufacture and deliver nearly 33,000 SF of high-performance hollowcore plank on a shortened construction schedule. The project underwent several schedule changes that affected trades and required County Materials to reschedule product deliveries. Grove80 relied on County Materials’ responsiveness and hollowcore’s inherent efficiencies for its timely progression.