First class mail large envelope flat

A large envelope with a flat shape, sent via First Class Mail!

Here are the details you need to know:

Size:

• The maximum size for a large envelope sent via First Class Mail is 12 inches long, 15 inches wide, and 3/4 inch thick.

Weight:

• The maximum weight for a large envelope sent via First Class Mail is 13 ounces.

Cost:

• The cost of sending a large envelope via First Class Mail depends on the weight and destination. As of 2023, the cost is:
  • 1-3 ounces: $0.92
  • 3-6 ounces: $1.22
  • 6-13 ounces: $1.62

Delivery Time:

• First Class Mail large envelopes are typically delivered within 3-5 business days within the contiguous United States.

Tracking:

• First Class Mail large envelopes are not trackable, but you can use a tracking number to verify delivery.

Additional Tips:

• Make sure to affix the correct postage and address the envelope clearly.
• You can use a flat rate envelope or a regular large envelope, but the flat rate envelope may be more cost-effective for heavier items.
• If you're sending a large envelope to a military address, you may need to use a different rate and follow specific guidelines.