Can i still use old priority mail flat rate box

Yes, you can still use old Priority Mail Flat Rate boxes, but there are some limitations and considerations to keep in mind:

  1. Size and shape: The USPS has introduced new sizes and shapes for Priority Mail Flat Rate boxes over the years. If your old box is no longer the correct size or shape, it may not be eligible for the Flat Rate pricing.
  2. Weight limit: The weight limit for Priority Mail Flat Rate boxes has increased over time. If your old box is no longer within the current weight limit (up to 70 lbs for the large box), you may need to use a different shipping option or upgrade to a larger box.
  3. New box designs: The USPS has introduced new designs for Priority Mail Flat Rate boxes, which may not be compatible with older boxes. For example, the new boxes have a more secure closure system and may not fit together with older boxes.
  4. Pricing: While you can still use old Priority Mail Flat Rate boxes, the pricing may have changed. The USPS has updated the pricing for Priority Mail Flat Rate boxes over the years, so you may not be able to use the same pricing as before.

To ensure you're using your old Priority Mail Flat Rate box correctly, follow these steps:

  1. Check the USPS website: Visit the USPS website and review the current Priority Mail Flat Rate box sizes, shapes, and pricing.
  2. Verify the box size and shape: Measure your old box to ensure it's the correct size and shape for the current Priority Mail Flat Rate box options.
  3. Check the weight limit: Verify that your old box is within the current weight limit for Priority Mail Flat Rate boxes.
  4. Use the correct pricing: If you're using an old box, you may need to use the current pricing for Priority Mail Flat Rate boxes, which may be different from the pricing when you purchased the box.

If you're unsure about using your old Priority Mail Flat Rate box, you can always contact the USPS or visit a local post office for guidance.