Can you mail pin flat envelope

A pin-flat envelope is a type of envelope that is designed to be as flat as possible, making it ideal for mailing items that are thin and lightweight, such as:

In general, pin-flat envelopes are suitable for mailing items that weigh less than 1 ounce (28 grams) and have a maximum thickness of about 1/16 inch (1.5 mm).

Here are some tips for mailing pin-flat envelopes:

  1. Check the size: Make sure the envelope is the correct size for the item you're mailing. Pin-flat envelopes usually come in standard sizes, such as 3.5 x 5 inches (8.9 x 12.7 cm) or 4 x 6 inches (10.2 x 15.2 cm).
  2. Use the correct postage: Since pin-flat envelopes are lightweight, you'll need to use the correct postage for the weight and size of the item. You can use a postage scale or consult the USPS website for guidance.
  3. Seal the envelope carefully: Since pin-flat envelopes are designed to be flat, you'll need to seal them carefully to prevent them from becoming creased or bent. You can use a glue stick or a tape to seal the envelope.
  4. Use a sturdy envelope: Choose a pin-flat envelope made from sturdy paper or cardboard to ensure it can withstand handling and mailing.
  5. Check with your local post office: If you're unsure about the mailing requirements for your specific item, it's always a good idea to check with your local post office for guidance.

Remember to always follow the USPS guidelines and regulations for mailing items, and you'll be all set to send your pin-flat envelope in the mail!