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A9 Envelopes

 

A9 invitation envelopes are a popular, standard envelope size. Measuring 5 3/4 x 8 3/4 inches, they are designed to fit a 5 1/2 x 8 1/2 A9 card (that's half of a standard 8 1/2 x 11 sheet) - easy! A9 envelopes are popular for social and corporate correspondence alike.

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A9 White Straight Flap Envelopes, Astroparche 60lb
2 More Colors >
 
White Astroparche Envelopes 5 3/4 x 8 3/4 - Straight Flap - Matte
$149.01per 1000 Pack
SALE
74% OFF
A9 Matte Chocolate Single Lined Envelopes, Ecru
1 More Colors >
 
A9 Matte Chocolate Single Lined Envelopes, Ecru
$3.15per 25 Pack
A9 Licorice Black Euro Flap Envelopes, Gmund Colors Matt 81lb
8 More Colors >
 
Licorice Black Gmund Colors MATT Envelopes 5 3/4 x 8 3/4 - Euro Flap - Matte
$11.63per 25 Pack
A9 Light Moss Euro Flap Envelopes, Gmund Colors Matt 68lb
23 More Colors >
 
Light Moss Gmund Colors MATT Envelopes 5 3/4 x 8 3/4 - Euro Flap - Matte
$11.63per 25 Pack
A9 No Color Euro Flap Envelopes, Gmund No Color No Bleach 81lb
 
No Color No Color No Bleach Envelopes 5 3/4 x 8 3/4 - Euro Flap - Organic
$11.39per 25 Pack
Ecru Euro Flap Envelopes, A9  5 3/4 x 8 3/4, LCI Smooth 70lb
 
Ecru LCI Smooth Envelopes 5 3/4 x 8 3/4 - Euro Flap - Smooth
$9.31per 25 Pack
A9 Desert Storm Straight Flap Envelopes, Environment 80lb
 
Desert Storm Environment Envelopes 5 3/4 x 8 3/4 - Straight Flap - Smooth
$9.51per 25 Pack
A9 Blast-Off Blue Straight Flap Envelopes, Astrobright 60lb
18 More Colors >
 
Blast-Off Blue Astrobright Envelopes 5 3/4 x 8 3/4 - Straight Flap - Matte
$128.07per 1000 Pack
A9 Cosmic Orange Straight Flap Envelopes, Astrobright 70lb
 
Cosmic Orange Astrobright Envelopes 5 3/4 x 8 3/4 - Straight Flap - Matte
$143.32per 1000 Pack
A9 Limba Euro Flap Envelopes, Gmund Colors Matt 91lb
 
Limba Gmund Colors MATT Envelopes 5 3/4 x 8 3/4 - Euro Flap - Matte
$11.63per 25 Pack
A9 Wedding White Cotton Euro Flap Envelopes, Gmund Cotton 74lb
 
Wedding White 100% Cotton Envelopes 5 3/4 x 8 3/4 - Euro Flap - Cotton
$14.39per 25 Pack
A9 Vista Metallic Straight Flap Envelopes, Stardream 81lb
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Vista Stardream Envelopes 5 3/4 x 8 3/4 - Straight Flap - Metallic
$12.11per 25 Pack
A9 Beauty Pink Smooth Tactile Straight Flap Envelopes, So Silk 92lb
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Beauty Pink So..Silk Envelopes 5 3/4 x 8 3/4 - Straight Flap - Smooth Tactile
$26.02per 25 Pack
A9 Tindalo Wood Grain Straight Flap Envelopes, Gmund Wood 68lb
 
Tindalo Wood Grain Envelopes 5 3/4 x 8 3/4 - Straight Flap - Wood Grain
$13.74per 25 Pack
A9 Ice Silver Metallic Straight Flap Envelopes, Curious Metallics 80lb
5 More Colors >
 
Ice Silver Curious Metallics Envelopes 5 3/4 x 8 3/4 - Straight Flap - Metallic
$12.11per 25 Pack
A9 Solar White Linen Straight Flap Envelopes, Classic Linen 80lb
 
Solar White Classic Linen Envelopes 5 3/4 x 8 3/4 - Straight Flap - Linen
$219.53per 1000 Pack
Ecru Straight Flap Envelopes, A9  5 3/4 x 8 3/4, LCI Smooth 70lb
 
Ecru LCI Smooth Envelopes 5 3/4 x 8 3/4 - Straight Flap - Smooth
$8.77per 25 Pack
A9 Ultimate White Linen Straight Flap Envelopes, LCI 70lb
 
Ultimate White LCI Linen Envelopes 5 3/4 x 8 3/4 - Straight Flap - Linen
$10.61per 25 Pack
A9 White Felt Straight Flap Envelopes, Royal Sundance 80lb
 
White Royal Sundance Envelopes 5 3/4 x 8 3/4 - Straight Flap - Felt
$151.76per 1000 Pack
A9 White Felt Straight Flap Envelopes, Royal Sundance 70lb
 
White Royal Sundance Envelopes 5 3/4 x 8 3/4 - Straight Flap - Felt
$137.16per 1000 Pack
A9 Black Smooth Tactile Straight Flap Envelopes, Plike 95lb
 
Black Plike Envelopes 5 3/4 x 8 3/4 - Straight Flap - Smooth Tactile
$281.82per 800 Pack
A9 Gold Foil Single Lined Envelopes, Radiant White
 
White Gold Foil Lined Envelopes 5 3/4 x 8 3/4 - Single Lined - Foil
$9.75per 25 Pack
SALE
15% OFF
A9 Pearlescent Black Single Lined Envelopes, Ecru
 
Ecru Black Single Lined Envelopes 5 3/4 x 8 3/4 - Single Lined - Pearlescent
$10.06per 25 Pack
A9 Metallic Antique Gold Stardream Double Unlined Envelopes 81lb
1 More Colors >
 
Antique Gold Double Wedding Envelopes 5 3/4 x 8 3/4 - Double Unlined - Metallic
$30.16per 25 Pack
Scarlett Red Lined Inner Outer Envelopes, A9, A10 Radiant White
1 More Colors >
 
White Scarlet Red Double Wedding Envelopes 5 3/4 x 8 3/4 - Double Lined - Matte
$21.42per 25 Pack
A9 Matte White Unlined LCI Double Unlined Envelopes 70lb
 
Radiant White Double Wedding Envelopes 5 3/4 x 8 3/4 - Double Unlined - Smooth
$17.42per 25 Pack
Gold Lined Inner Outer Envelopes, A9, A10 Radiant White
 
White Gold Double Wedding Envelopes 5 3/4 x 8 3/4 - Double Lined - Pearlescent
$20.76per 25 Pack
 

A9 Envelopes (FAQs)

What size is an A9 envelope?

A9 size envelopes are 5 3/4 x 8 3/4 inches.

Is A9 a standard envelope size for invitations?

Yes, A9 is a very invitation envelope size because they fit A9, 5 1/2 x 8 1/2 cards - half of a standard 8 1/2 x 11 sheet. This makes set up, printing, and cutting easy!

Can I use A9 size envelopes for half fold cards?

Yes, a half fold is another way of saying a standard letter sized sheet folded in half to yield a 5 1/2 x 8 1/2 inch card.

Do A9 envelopes require more postage?

Based on shape and size along, A9 envelopes require just standard postage provided they are one ounce or under. Anything over an ounce, however, requires more. We recommend bringing one finished invitation ensemble to the post office to determine accurate postage.