When serious outdoor protection is required, Cogan heavy-duty cantilever storage sheds provide the no-nonsense shelter you need. Fully-enclosed on three sides, the corrugated steel sheets and treated wood joists are strong, resilient and weather-resistant. Secure your material against snow loads, wind, rain and ice. Ideal for outdoor lumber or steel storage. Cogan heavy-duty cantilever storage sheds can be added to new or existing cantilever racking.