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The dimensions of a small USPS Flat Rate Legal Envelope are 5-1/2 inches x 9-1/2 inches, the dimensions of a medium USPS Flat Rate Legal Envelope are 9-1/2 inches x 12-1/2 inches, and the dimensions of a large USPS Flat Rate Legal Envelope are 12-1/2 inches x 15-1/2 inches. What are the dimensions of a USPS Flat Rate Legal Envelope? The shipping weight limit for a USPS Flat Rate Legal Envelope is 20 pounds. What is the shipping weight limit for a USPS Flat Rate Legal Envelope? The delivery time for a USPS Flat Rate Legal Envelope is typically 2-3 days, but may vary depending on the destination. What is the delivery time for a USPS Flat Rate Legal Envelope?
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It costs $6.70 to mail a document in a small USPS Flat Rate Legal Envelope, $7.85 to mail a document in a medium USPS Flat Rate Legal Envelope, and $9.00 to mail a document in a large USPS Flat Rate Legal Envelope. How much does it cost to mail a document in a USPS Flat Rate Legal Envelope? The envelope is available in three different sizes – small, medium, and large – and is available at all USPS Post Offices. A USPS Flat Rate Legal Envelope is a pre-paid envelope from the United States Postal Service (USPS) that is specifically designed for mailing documents and papers.
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