Can u use box for first class mail

Yes, you can use a box for First Class Mail, but there are some guidelines and restrictions to keep in mind:

1. Size and weight: First Class Mail boxes can be up to 13 inches long, 11.5 inches wide, and 5.5 inches high. The maximum weight is 13 ounces.
2. Shape: The box must be rectangular in shape, with a flat top and bottom.
3. Material: The box can be made of paper, cardboard, or other lightweight materials.
4. Sealing: The box must be sealed with tape or glue to prevent contents from spilling out during transit.
5. Labeling: You must affix the correct postage and address the box correctly, just like any other First Class Mail piece.

Some examples of acceptable boxes for First Class Mail include:

• Small cardboard boxes (e.g., shoe boxes or gift boxes)
• Paperboard boxes (e.g., cereal boxes or file folders)
• Envelopes with a rigid insert (e.g., a cardboard or plastic insert to keep items organized)

However, some boxes may not be suitable for First Class Mail, such as:

• Large or heavy boxes (use Priority Mail or Parcel Post instead)
• Boxes with sharp edges or points (may cause damage during transit)
• Boxes with fragile or sensitive contents (may require special handling or packaging)

Remember to always check with the USPS website or consult with a postal worker if you're unsure about the suitability of a box for First Class Mail.