What is the recommended size for white correspondence cards used for formal invitations?

The recommended size for white correspondence cards used for formal invitations is 4x5 inches. This size is considered standard for formal invitations as it strikes a balance between being large enough to convey important information clearly while remaining elegantly compact.

Using a 4x5 inch card allows for sufficient space to include the essential details such as the occasion, date, time, and location, while maintaining a sophisticated appearance. This size is easy to handle and fits well in standard envelopes, making it convenient for mailing.

Other sizes may either be too large, thereby overwhelming the recipient or too small, which could hinder readability and the overall presentation of the invitation. Therefore, selecting the appropriate size is crucial for upholding the professionalism and decorum expected in formal communications.