The structure design of corrugated paper packaging box is based on the actual conditions of packaging and production, and according to the scientific principle, it designs the external structure and internal accessories of packaging. The structure must be designed with sufficient strength, hardness and resistance to other environments. From the point of view of packaging purpose, we must consider the following two aspects: one is to protect the primary function of products, the other is to meet the important characteristics of modern packaging, such as transportation, processing characteristics and so on.

合格的纸箱产品，从正确的结构设计开始。设计人员不仅要真正的理解客户的意图，还要熟悉后序加工工艺。只有这样，才能把客户的意图转化为合格的产品，并能保证后序加工顺利进行。设计人员在设计开始前要了解内装物的性质、形状、尺寸、重量，内装物的排列方式、运输方式、堆码方式，内装物的仓储环境、运输路线和时间以及纸箱箱型和制作材料等信息。

Qualified carton products, starting from the correct structure design. Designers should not only truly understand the intentions of customers, but also be familiar with post-processing technology. Only in this way can the customer's intentions be transformed into qualified products, and can ensure the smooth processing of post-processing. Before the beginning of the design, the designer should know the nature, shape, size and weight of the contents, the arrangement, transportation mode and stacking mode of the contents, the storage environment, transportation route and time of the contents, as well as the information of carton type and manufacturing materials.

瓦楞纸包装盒国内的纸箱设计，存在技术和指导思想方面的一些问题，缺乏系统的分析，从而使得所设计出来的包装不能够满足人机工程学以及技术经济合理性等方面的要求。这一点，在纸箱尺寸设计中反映得十分明显。

The design of corrugated cartons in China has some problems in technology and guiding ideology, lacking of systematic analysis, which makes the designed packaging unable to meet the requirements of ergonomics and technical and economic rationality. This is evident in the design of carton size.

我国只是对纸箱的箱型作了明确的规定，而对纸箱的尺寸大小却无具体要求，主要由设计者来定。而设计者在确定纸箱尺寸时又主要是考虑两方面的因素：一是能够包容得下内容物；二是具有足够的强度。其实，制约纸箱大小和形状的因素除去包装内容物外，还有许多其它的因素，如人机工程学方面的因素、托盘的尺寸、货车车厢的尺寸大小、集装箱空间的尺寸大小、配货架的尺寸大小等。这些因素间既相互独立，又相互制约影响；既要考虑包装功能，也要考虑方便性。所以设计时只有系统地、综合地把握住所有的制约因素，才能够真正合理地确定纸箱的尺寸大小。

In our country, only the type of carton has been clearly stipulated, but the size of carton has no specific requirements. It is mainly decided by the designer. In determining the size of carton, the designer mainly considers two factors: one is that it can contain the contents; the other is that it has enough strength. In fact, besides the contents of packaging, there are many other factors that restrict the size and shape of cartons, such as ergonomic factors, the size of pallets, the size of truck compartments, the size of container space, the size of racks and so on. These factors are not only independent, but also mutually restrictive; packaging function should be taken into account, as well as convenience. Therefore, only by systematically and comprehensively grasping all the constraints in the design can the size of cartons be determined reasonably.

综上所述，瓦楞纸包装盒纸箱的尺寸设计是瓦楞纸箱结构设计中很重要的一项工作。一个合格的纸箱产品要具有保护性和良好的造型。特别是集销售包装和运输包装功能于一身的纸箱，合理的尺寸将是纸箱设计的关键。因为尺寸的变化将直接影响到纸箱的各种性能的变化。总之，在瓦楞纸箱的结构设计中，要根据使用的制造设备、不同的生产工艺、不同楞型构成的瓦楞纸以及内装商品的种类和性质来确定。只有掌握了设计瓦楞纸箱的结构、尺寸相关的内容后，才能制造出保护商品、美化商品的瓦楞纸箱。

In conclusion, the size design of corrugated cartons is an important work in the structural design of corrugated cartons. A qualified carton product should have protection and good shape. Especially the carton which integrates the functions of sales packaging and transportation packaging, reasonable size will be the key to carton design. Because the change of size will directly affect the change of various properties of cartons. In a word, in the structural design of corrugated cartons, it is necessary to determine the types and properties of corrugated cartons according to the manufacturing equipment used, different production processes, corrugated papers made of different corrugated shapes and the goods in them. Only after mastering the structure and size of corrugated cartons, can corrugated cartons be manufactured to protect and beautify commodities.