Design carton size, we need to consider the product's packaging costs, but also consider the suitability and performance of product packaging protection, usually based on product characteristics, such as quantity, weight, use, storage, sale, transport and economic adaptability many factors were considered.

In accordance with the relevant requirements of international trade, consumer goods transport packaging containing a single corrugated box weight should generally be controlled in 20--25kg. Moreover, China's standard manual handling of single crates maximum weight of 18kg, individually packaged consumer goods in general corrugated box weighs 20kg, large and medium-sized cardboard box because of product structure, can not weight restrictions, such as sports equipment, large appliances and other special products. Consider the cost of packaging from the user's point of view, within a predetermined standard range, to meet the handling, storage, use, performance and other conditions, making a slightly larger size of the carton to increase the number of products containing, reducing the number of cartons used relatively cost-effective number. In certain beverage packaging, for example, if in the case of paper material unchanged or slightly increased, to 12 bottles to 24 bottles, paper can not only save about 35% of the cost of materials, and printing and finishing of the total the amount and the cost will be greatly reduced. It can be said, to change the packaging specifications for the client it is indeed not a small "profit." Furthermore, considering the built-in product structure corresponds to the carton length, width, high rationality in three directions, as in the number of accommodated, weight the same conditions, will reduce the height of the carton and a corresponding increase in the length or width of the carton, although the increase in use paper size, but reduces the compressive strength also increase the height of the carton, which can effectively prevent or reduce the logistics process of product damage.

Carton design specifications, production costs, product adaptation and market promotion effects, greater impact, so designers should deliberate, grasp a suitable degree, so that the product packaging play a better role.