Our largest double wall cardboard box measures 762x508x508mm and provides reliable protection against damage and crushing to your heavy or fragile items. Securing the top and base with packing tape following a quick assembly creates these robust, heavy duty double wall cardboard boxes which are: Made from high quality 75% recycled paper Eco-friendly – fully degradable and recyclable Extra strength, offering a 25kg load capacity Supplied flat packed Fast and straightforward to assemble