A 5 × 5 envelope is a lovely choice for square cards, invitations and stationery that need a neat, balanced finish. Measuring 130 × 130mm, it is designed to hold inserts measuring up to approximately 125 × 125mm.
This size works especially well for:
125 × 125mm inserts
Square wedding invitations
Save the dates
RSVP cards
Birthday cards
Thank you cards
Greeting cards
Small photo prints
Keepsake notes
Handmade stationery
Craft projects
Gift enclosure cards
The compact square shape allows your card to slide inside comfortably while still maintaining a tidy, well-proportioned appearance. It is a versatile envelope size for weddings, celebrations, handmade cards and thoughtful personal stationery, helping each insert remain protected and beautifully presented.