Standard size envelopes for mailing
The standard sizes for envelopes used for mailing in the United States are defined by the United States Postal Service (USPS). Here are the most common sizes:
- Letter Envelope: 3.5 inches (8.9 cm) high x 6.125 inches (15.6 cm) long
- This is the most common size for mailing letters, bills, and other small documents.
- Large Envelope: 4.5 inches (11.4 cm) high x 9.5 inches (24.1 cm) long
- This size is often used for mailing larger documents, such as catalogs, brochures, and magazines.
- Flat Envelope: 9.5 inches (24.1 cm) high x 12.5 inches (31.8 cm) long
- This size is used for mailing larger, flat items such as posters, maps, and artwork.
- Padded Envelope: 4.5 inches (11.4 cm) high x 9.5 inches (24.1 cm) long
- This size is used for mailing fragile or sensitive items that require extra protection, such as CDs, DVDs, and jewelry.
- Jumbo Envelope: 6 inches (15.2 cm) high x 12 inches (30.5 cm) long
- This size is used for mailing larger, heavier items such as books, manuals, and documents.
It's worth noting that the USPS also offers a range of specialty envelopes, such as:
- Window Envelopes: have a transparent window that allows the recipient to see the contents without opening the envelope.
- Clamshell Envelopes: have a hinged flap that can be opened and closed like a clamshell.
- Gusseted Envelopes: have a fold-out flap that can be used to add extra space or protection to the contents.
When choosing an envelope size, make sure to consider the size and shape of the contents, as well as any additional features you may need, such as a window or padding.