Can you mail a thick envelope first class
According to the United States Postal Service (USPS), a thick envelope can be mailed First Class, but there are some limitations and considerations to keep in mind:
- Size: The maximum size for a First Class letter is 11.5 inches long, 6.125 inches high, and 0.25 inches thick. If your envelope is thicker than that, it may not be eligible for First Class mail.
- Weight: First Class letters can weigh up to 3.5 ounces. If your envelope is heavier than that, you'll need to use a different mail class, such as Priority Mail.
- Content: The USPS has specific guidelines for what can be mailed First Class. For example, you can't mail packages containing hazardous materials, perishable items, or items that are too large or too heavy.
If your envelope meets these requirements, you can mail it First Class. However, if it's too thick, heavy, or contains prohibited items, you may need to use a different mail class, such as Priority Mail or Parcel Post.
To determine the best mail class for your envelope, you can use the USPS's online tool, the "Calculate a Price" feature, or consult with a postal worker at your local post office.
Remember to always follow the USPS's guidelines and regulations when mailing packages to ensure timely and safe delivery.