This document provides specifications for various types of plastic distribution boxes, including their dimensions and features. It describes HA, HK, and LGD series boxes with dimensions ranging from 100-415mm in length, 105-323mm in width, and 75-140mm in height. Before ordering custom packaging, it's important to understand the three core measurements: length, width, and height. These dimensions control how your product fits, how much space your shipment occupies, and how your packaging performs across storage, handling, and delivery. Length (L): The longest side of the box. For ecommerce brands, small businesses, packaging managers, and product-based companies, accurate box measurements help prevent loose products, crushed corners, oversized cartons, artwork errors. This guide, by the premier packaging, will help you understand the dimensions of the box in L × W × H format, how to measure it, and the nuances of shipping logistics to ensure your packaged product fits perfectly. Need a quick answer? Then this section is for you.