Square Flap Envelopes

Square Flap Envelopes

Our most popular style for invitations, announcements, photos, and greeting cards, square flap envelopes are constructed with an elegant, and distinctive square flap. We stock these 11 sizes in a wide array of colors, textures, and weights, and are available printed or plain.

Select a Size to view all Colors and Options = Most Popular

 
A1 Envelopes
The perfect size for RSVPs
(3 5/8 x 5 1/8)
65 colors
from $9.95 / 50
popular
 
Slimline
A square flap #9 envelope
(3 7/8 x 8 7/8)
1 color
from $9.95 / 50
 
#10 Square Flap Envelopes
A nicer style for a cleaner look
(4 1/8 x 9 1/2)
76 colors
from $9.95 / 50
popular
 
A4 Envelopes
The perfect size for 4 x 6 Photos or Cards
(4 1/4 x 6 1/4)
8 colors
from $9.95 / 50
 
A2 Envelopes
The best size for "quarter fold" cards
(4 3/8 x 5 3/4)
112 colors
from $8.95 / 50
popular
 
Photo Greeting Card Envelopes
For 4 x 8 photo cards
(4 3/8 x 8 1/4)
1 color
from $9.95 / 50
popular
 
A6 Envelopes
(4 3/4 x 6 1/2)
114 colors
from $8.95 / 50
popular
 
A7 Envelopes
The perfect size for 5 x 7 Invitations or Cards
(5 1/4 x 7 1/4)
117 colors
from $7.95 / 50
popular
 
A8 Envelopes
Most Popular for Greeting Cards
(5 1/2 x 8 1/8)
16 colors
from $8.95 / 50
 
A9 Envelopes
The best size for "half fold" cards
(5 3/4 x 8 3/4)
60 colors
from $8.95 / 50
popular
 
A10 Envelopes
The Largest Invitation Envelope
(6 x 9 1/2)
15 colors
from $8.95 / 50