In size, heavy-duty boxes usually sit between a large and a medium at roughly 45 by 45 by 60 cm. They have a double wall construction for extra safety and durability, and are generally employed for packing dishes, China, stemware, glasses, or any other household breakables. These very sturdy boxes are also excellent for packing objects from the garage or storage room such as tools and those small but heavy metal objects usually found in a workshop. If you’re packaging tools in one of these boxes, you probably want to wrap about a half-dozen or so in bundles of newsprint and then place them within the box. If you’re using it for China or glassware, you can either use newsprint or bubble wrap and packing peanuts for maximum safety.