This Heavy Duty carton has a double wall, so it offers more protection for your fragile items such as crockery, glassware, appliances and electronic goods and is better for long term storage and moving house. Bigger is not always best, this Heavy-Duty medium size moving box has a double wall, so it offers more protection for your fragile items such as crockery, glassware, appliances and electronic goods. Ideal size for packing heavy items and still manageable, better for long term storage and moving to a new house. Like its big brother “Jumbo” it’s perfect for long term storage as the double wall construction resists sagging and less likely to collapse like thinner less quality cardboard boxes. This is another serious box hitting above its weight! All our boxes for storage are Australian made.