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1. Length is describing how long something is while width is describing how wide an object is. 2.In geometry, length pertains to the longest side of the rectangle while width is the shorter side.
Keeping this in consideration, is it width by length or length by width?
Dimensions are expressed as width by length by height or depth in three-dimensional space.
Just so, what comes first length or width or height?
It needs to be written Length X Width X Height. That is standard for measurements. It makes no difference in the order you have them listed.
Standard corrugated boxes are measured as: Length x Width x Height. (LxWxH) where the height is the vertical dimension of the box when the opening is facing upwards.