| COMMON ENVELOPE NAME | STANDARD SIZE | MAXIMUM ENCLOSURE SIZE |
|---|
| 6-5/8 envelope | 6 x 9-1/2 inches | 5-3/4 x 9-1/4 inches |
| 9 envelope | 8-3/4 x 11-1/2 inches | 8-1/2 x 11-1/4 inches |
| 9-1/2 envelope | 9 x 12 inches | 8-3/4 x 11-3/4 inches |
| 10 envelope | 9-1/2 x 12-5/8 inches | 9-1/4 x 12-3/8 inches |
You can make amazing DIY envelopes out of pretty much any flat, paper-like material! All you have to do is make a template (super simple), trace around it, cut, and glue. Add some calligraphy and a stamp or two, and you have a unique envelope that's ready to rock someone's mailbox!
To be eligible for the standard letter rate and envelope cannot be more than 6.125 inches in height by 11.5 inches in length and have a thickness greater than 0.25 inches. Anything that exceeds these dimensions will incur additional postage.
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.
| Dimension | Minimum* | Maximum |
|---|
| Height | 6-1/8 inches | 12 inches |
| Length | 11-1/2 inches | 15 inches |
| Thickness | 1/4 inch | 3/4 inch |
Does a 5X7 Envelope Require Extra Postage? A rectangular 5×7 envelope is the standard size that is used in the United States for mailing letters and invitations, so if your envelopes are within the weight range of 1 oz, then you will only need to pay $. 47 for each one without any additional charge.
What size is a Remittance Envelope? The standard #6 3/4 remittance envelope is 3 5/8 x 6 1/2 inches (metric size 92mm x 165mm) when closed. Other common sizes are the #9 remittance at 3 7/8 by 8 7/8 inches and #10 remittance at 4 1/8 x 9 1/2 inches.
A4 Envelopes are commonly called 4x6 Envelopes because they are the best envelope for 4 x 6 cards. For social and invitation purposes, the A4 is also a great reply envelope as it easily fits inside A6, A7, A8, A9 and A10 size envelopes.
A6 envelopes, for example are 4.75 x 6.5 inches. The other "A" envelope sizes are as follows: A7 envelopes: 5.25 x 7.25 inches. A8 envelopes: 5.5 x 8.125.
They have a standard size of 4 1/8 inches high by 9 1/2 inches long. The #10 envelopes are designed to hold a standard 8 1/2 x 11-inch piece of paper folded into three sections, making them ideal for offices. They are perfect for sending invoices, checks, or other business letters.
| COMMON ENVELOPE NAME | STANDARD SIZE | MAXIMUM ENCLOSURE SIZE |
|---|
| 7 envelope | 3-3/4 x 6-3/4 inches | 3-1/2 x 6-1/2 inches |
| 8-5/8 envelope | 3-5/8 x 8-5/8 inches | 3-3/8 x 8-3/8 inches |
| 9 envelope | 3-7/8 x 8-7/8 inches | 3-5/8 x 8-5/8 inches |
| 10 envelope | 4-1/8 x 9-1/2 inches | 3-7/8 x 9-1/4 inches |
Business & Correspondence
| Type | Size |
|---|
| No. 7 (#7) Shop #7 Envelopes Now | inches: 3.75 x 6.75 (mm: 95.25 x 171.45) |
| Monarch (#7-3/4) Shop Monarch Envelopes Now | inches: 3.875 x 7.5 (mm: 98.425 x 190.5) |
| No. 9 (#9) Shop #9 Envelopes Now | inches: 3.875 x 8.875 (mm: 98.425 x 225.425) |
| 9 (policy) | inches: 4 x 9 (mm: 101.6 x 228.6) |
