usps first class parcel dimensions

usps first class parcel dimensions are important for anyone shipping items through USPS First Class Mail. This service is ideal for lightweight packages, and understanding the dimensions ensures that packages meet the required size limits for eligibility. The maximum weight for a First Class parcel is 13 ounces, and the package must meet specific length, width, and thickness criteria. To avoid delays and additional charges, shippers must measure their packages accurately before sending them through USPS First Class Mail, making it a reliable and cost-effective shipping option for small items.