Paper Weight Conversion Guide: GSM, PT, and Basis Weight Explained
Specifying paper and paperboard correctly is foundational to packaging performance, print quality, freight cost, and retailer compliance. Yet paper weight terminology varies widely between metric and US systems, and between weight-based and thickness-based measures. This guide explains how GSM, pounds (lbs), points (pt), and millimeters (mm) are used in US packaging and printing – and […]