🔍 Key Concepts

• How loads and stresses are transferred in an ISO freight container • The structural role of corner posts and corner fittings in stacking and lifting • Difference between panels (siding) and the main load-bearing framework

💭 Think About

• When a container is lifted by a crane or stacked nine high on a ship, which parts are actually taking that load? • If the side panels were damaged or replaced with lighter material, would the container still be stackable and liftable in the same way? • Which part is designed to align with the twist-locks and the containers above and below?

✅ Before You Answer

• Identify which components are directly engaged by twist-locks and lifting gear • Consider which parts carry compressive loads when containers are stacked vertically • Think about whether thin aluminum siding is mainly for enclosure or primary structural strength