Download these printable envelopes with square flaps. Each pattern prints on Letter/A4 paper and includes clear cutting and folding guides. These simple envelopes work well for invitations, note cards, and handmade greeting cards. Use the chart below to choose the envelope size that fits your card.
| Envelope Name | Envelope Size | Fits Card Size |
|---|---|---|
| A2 Invitation Envelope | 4⅜" x 5¾" | 4¼" x 5½" |
| C6 Announcement Envelope | 4½" x 6⅝" | 4⅜" x 6¼" |
| A1 RSVP Envelope (small) | 3½" x 5" | 3¼" x 4¾" |
Each pattern is a PDF file that prints on standard Letter/A4 paper.
Print directly onto white or colored paper.
Cut out the envelope on the solid black line.
Fold the side flaps in on the thin lines. Then fold the bottom flap up and the top flap down. Unfold the top and bottom flaps.
Apply glue to the bottom flap where it overlaps the side flaps. Fold the bottom flap up and press to adhere.
Insert card or note into the envelope. Fold the top flap down and seal with glue, tape or a sticker.
Tip: For more details, variations, and additional patterns, visit the Square Flap Envelopes to Make page.
Any size envelope
Tip: It's easy to make an envelope in almost any size. Learn how to draw a custom envelope pattern that fits your card perfectly.
Handmade Paper
Tip: Envelopes with square flaps make efficient use of a sheet of paper. Try handmade paper to make beautiful envelopes like these Mini-Envelopes for Gift Enclosure Cards.
Related Envelope Patterns
Tip: Explore colorful decorated square flap envelopes in the Square Flap Envelopes to Make pattern page.
