Can first class postage mail in a priority box

In the United States, the answer is yes, you can use First-Class Mail postage on a Priority Mail box. However, there are some conditions and considerations to keep in mind:

  1. Weight and size: The item must weigh 13 ounces or less and fit within the Priority Mail box's dimensions (which vary depending on the box size).
  2. Package type: The Priority Mail box must be a flat-rate box, which means it has a fixed price regardless of the item's weight or size. You can use a flat-rate box for First-Class Mail, but you'll need to pay the flat-rate price, which is currently $7.95 for a small box, $14.35 for a medium box, and $19.95 for a large box.
  3. Postage cost: You'll need to affix the correct First-Class Mail postage, which is based on the item's weight and size. You can use a postage scale or consult the USPS website to determine the correct postage.
  4. Service: First-Class Mail is a non-trackable service, which means the USPS doesn't provide tracking information or delivery confirmation. If you need tracking, you may want to consider using Priority Mail or another trackable service.
  5. Labeling: Make sure to properly label the package with the recipient's address and any relevant handling instructions (e.g., "Fragile" or "Do Not Bend").

To summarize:

If you have any further questions or concerns, feel free to ask!