What sizes do flat rate envelopes come in?

What sizes do flat rate envelopes come in?

USPS Priority Mail Flat Rate Options

Can I use my own envelope for priority mail flat rate?

TIPS. First-Class Mail items weighing more than 13 ounces is called Priority Mail. If you use your own envelope or box for Priority Mail, identify it with the marking, “Priority Mail.” Priority Mail packaging provided by the USPS must be used only for Priority Mail.

Can you put anything in a flat rate envelope?

With Flat Rate Envelopes, bulges and thickness may not matter. Flat Rate Envelopes are best suited for documents, but if you choose to send another type of item (up to 70 pounds), it should not reconstruct or expand the envelope in any way. As long as the envelope closes within the normal folds, bulges will not matter.

How much does it cost to mail a flat rate envelope priority mail?

Domestic Prices

What size envelopes does USPS have?

The words large envelopes and flats are used interchangeably. Whatever you call them, flats must: Have one dimension that is greater than 6-1/8 inches high OR 11-½ inches long OR ¼ inch thick….Sizes for Large Envelopes and Flats.

What is padded flat rate envelope?

The Magic of USPS Priority Mail Padded Flat Rate Envelope Priority Mail Padded Flat Rate Envelope is an envelope of 9.5in (L) by 12.5in (W), lined with bubble padding for extra protection. It’s flexible, bendable, and thick enough to protect your item from the bumps and tumbles of postal transit.