Typical postcard stock falls within a specific thickness range, generally between 10pt and 16pt (270gsm – 430gsm). This range provides sufficient durability for mailing without additional reinforcement while remaining cost-effective for large... Read more »
The maximum allowable mass for a single piece of mail using one standard stamp determines its eligibility for the lowest postage rate. Exceeding this threshold necessitates additional postage or alternative shipping methods.... Read more »
Paper density is typically measured in grams per square meter (gsm). A standard postcard often ranges between 200 and 300 gsm. This measurement indicates the mass of a square meter of the... Read more »
A typical stamp issued by postal services possesses a minimal mass, often less than a gram. For instance, a standard U.S. “Forever” stamp weighs approximately 0.06 grams. This near-weightlessness belies the significance... Read more »