Understanding Priority Mail Padded Flat Rate Envelope Size

When it comes to shipping items on Poshmark, determining the correct cost can be a daunting task. Fortunately, the platform uses USPS Priority Mail for all US orders, excluding those containing electronics. This simplification makes it easier to calculate shipping costs.

One of the key considerations when using Priority Mail is the size of the envelope or box used. According to USPS guidelines, the combined measurement of the longest side and the distance around the thickest part of the box cannot exceed 108 inches. This means that if your item fits within one of these flat rate boxes or envelopes and meets the weight requirement (max 70 pounds), you can utilize them for a single flat rate price across all zones.

It's essential to ensure that the maximum combined length and girth of the box used does not exceed 108 inches. This ensures accurate shipping costs and prevents any potential issues with your shipment. By understanding these guidelines, sellers on Poshmark can streamline their shipping process and provide more transparent pricing for their customers.

Priority mail padded flat rate envelope size