When you have something to pack or ship, you must make sure that the boxes are of the right size. Once confirmed the correct box dimensions, could you only know your shipping cost and how much space you need to prepare for your products in warehouse.
Different box has different measure method. Standard corrugated boxes are measured as:
Length x Width x Height (LxWxH), the L, W, H need to have the exact correct order to describe it. Otherwise the box cost will be totally different.
Generally, the open facing side is called Length, the sides will be width, the height is the vertical dimension of the box when the opening is facing upwards.
How to measure other tuck up corrugated boxes?