Mailer postcard sizes

The standard sizes for mailer postcards are:

  1. Standard Postcard Size: 3.5 x 5 inches (8.9 x 12.7 cm) This is the most common size for postcards and is widely accepted by the US Postal Service.
  2. Large Postcard Size: 4 x 6 inches (10.2 x 15.2 cm) This size is slightly larger than the standard postcard size and is often used for more elaborate designs or for postcards that require more space for text or images.
  3. Jumbo Postcard Size: 5 x 7 inches (12.7 x 17.8 cm) This size is even larger than the large postcard size and is often used for postcards that require a lot of space for text, images, or other design elements.
  4. Square Postcard Size: 4 x 4 inches (10.2 x 10.2 cm) This size is a square shape and is often used for postcards that have a more artistic or design-focused approach.
  5. Mini Postcard Size: 2.5 x 3.5 inches (6.4 x 8.9 cm) This size is smaller than the standard postcard size and is often used for postcards that need to be more compact or for special occasions like wedding invitations or party invitations.

It's worth noting that while these sizes are the most common, there are other sizes available as well, and some mailers may have specific size requirements. It's always a good idea to check with the mailer or the US Postal Service to confirm the size requirements for your specific postcard.