A heavy box is a sturdy container that is difficult to lift due to its weight. It can be made of materials like wood, metal, or cardboard and is often used to store or transport items. People might use a heavy box to move belongings during a house move or to keep tools and equipment organized in a garage. When lifting a heavy box, it's important to use proper techniques to avoid injury. Bending at the knees and keeping the back straight can help. Sometimes, people may need assistance from a friend or use a dolly to make the task easier and safer.