Determining appropriate postal packaging for a 5×7 inch announcement or greeting necessitates selecting dimensions that adequately accommodate the card while providing a margin for ease of insertion and extraction. A common choice is an envelope sized 5.25 x 7.25 inches, designated as an A7 envelope. This provides a quarter-inch clearance on all sides of the card.
Employing the correct enclosure enhances the recipient’s initial experience. It ensures the contents arrive undamaged and presents a polished, professional image, especially crucial for invitations, thank-you notes, and business correspondence. Historically, standardized sizes facilitated efficient postal sorting and delivery; continuing to adhere to appropriate dimensions contributes to streamlined mail processing.
