What do the internal and external dimensions of storage shelves mean.metal wire shelving unit

　　When customers inquire about prices, they often encounter issues such as the outer size, inner size or outer space, inner space or outer diameter, inner diameter, etc. of storage shelves. What do these mean?

　　The outer size, inner size or outer space, inner space or outer diameter, and inner diameter of storage shelves are all related to their length. The external dimensions, outer space, and outer diameter of storage shelves all refer to the same size specification. The internal dimensions, clearance, and inner diameter of storage shelves refer to the same specifications. The difference between these two concepts is whether the length of the storage shelf includes the specifications of the columns.

　　Outer dimensions, outer space, and outer diameter refer to the length dimensions of storage shelves that include column specifications, while inner dimensions, inner space, and inner diameter refer to the length dimensions of storage shelves that do not include column specifications.

　　The length includes the specifications of the columns on both sides, so this length refers to the outer dimensions, outer space, and outer diameter of the storage shelf. When labeling the size specifications of the storage shelf, it can be written as follows: 1200 (outer) * 500 * 2000mm, or 1200 * 500 * 2000mm. When labeling the external dimensions, it is possible to indicate whether it is the external dimension or not. If not labeled, it defaults to the external dimension. However, when the length of the storage shelf is the internal dimension, it must be labeled.

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