Skip to main content Skip to footer
Customize your holiday gifts today
Get $20 off your first order of $100
Save 5% with Rewards+
Fanatical customer service since 1956
Rep photo Get expert
support now
Track an order
Shared cart
Reward not redeemed
You dont have enough points to redeem this reward.
Shopping list
Alternative Items


Home
>
Shipping, Packing & Mailing Supplies
>
Bulk Envelopes
>
Invitation Envelopes
>
Square Envelopes

Shop Square Envelopes

   (293 Products)
Filter by:
Clear
JAM Paper (152)
LUX (141)
Clear
White (122)
Clear (21)
Black (24)
Brown (18)
Gray/Silver (13)
Green (9)
Pink (9)
Ivory (2)
Red (15)
Beige (11)
Blue (11)
Yellow (8)
Gold (7)
Purple (2)
Metallic (1)
Multicolor (1)
Natural (1)
Natural Kraft (1)
Clear
2 11/16" x 3 11/16" (6)
3 1/4" x 3 1/4" (2)
4 1/8" x 9 1/2" (5)
4 3/4" x 6 1/2" (12)
4 3/8" x 5 3/4" (13)
5 1/2" x 5 1/2" (22)
5 1/2" x 8 1/8" (2)
5 1/4" x 7 1/4" (21)
5 3/4" x 8 3/4" (19)
5" x 5" (18)
5" x 11 1/2" (1)
6 1/2" x 6 1/2" (13)
6 1/4" x 6 1/4" (12)
6" x 6" (22)
6" x 9 1/2" (3)
7 1/2" x 7 1/2" (10)
Other (106)
Go
$0 - $10 (4)
$10 - $20 (51)
$20 - $30 (51)
$30 - $40 (32)
$40 - $50 (16)
$50 - $60 (18)
$60 - $70 (17)
$70 - $80 (5)
$80 - $90 (4)
$90 - $100 (10)
$100 - $150 (40)
$150 - $200 (20)
$200 - $300 (19)
$300 - $400 (3)
$400 - $500 (1)
$750 - $1000 (2)
Clear
50 Per Pack (91)
25 Per Pack (51)
1000 Per Pack (28)
500 Per Pack (60)
250 Per Pack (38)
100 Per Pack (17)
All filters
Sort by:
Best matchPrice: High-LowPrice: Low-HighRating: High-Low
All filters 293 items found
LUX 13 x 13 Square Envelopes, 50/Box, 28lb. White (WS-5222-50)
Quick view
LUX 13 x 13 Square Envelopes, 50/Box, 28lb. White (WS-5222-50)
Item #: 901-2146488LUX
(1)
Item #: 901-2146488LUX
13" x 13" square envelopes - 28 lb. white 50/PK
Perfect for sending calendars, important announcements for special events, corporate dinners or weddings
Moistenable glue sealing method
$90.99
Per pack
($1.82/Envelope)
Add to cart
Earn 90 points
Free delivery
JAM Paper 8.5 x 8.5 Square Invitation Envelopes, White, Bulk 250/Box (4231H)JAM Paper 8.5 x 8.5 Square Invitation Envelopes, White, Bulk 250/Box (4231H)
Quick view
JAM Paper 8.5 x 8.5 Square Invitation Envelopes, White, Bulk 250/Box (4231H)
Item #: 901-1589832JAM
Item #: 901-1589832JAM
White square envelope
Blank interior for personalized message
Envelope Size: 8.5" x 8.5"
$122.99
Per pack
($0.49/Envelope)
Add to cart
Earn 122 points
Free delivery
LUX® 80lb 5 1/4x7 1/4 Square Flap Metallic Envelopes W/Peel&Press; Azalea, 500/BX
Quick view
LUX® 80lb 5 1/4"x7 1/4" Square Flap Metallic Envelopes W/Peel&Press; Azalea, 500/BX
Item #: 901-515486LUX
Item #: 901-515486LUX
Azalea metallic
Size: A7 (5 1/4"x7 1/4")
Closure: Peel & press
$203.99
Per box
($0.41/Envelope)
Add to cart
Earn 203 points
Free delivery
LUX® 5 1/2 x 8 1/8 60lbs. Square Flap Envelopes W/Peel & Press, White, 50/Pack
Quick view
LUX® 5 1/2" x 8 1/8" 60lbs. Square Flap Envelopes W/Peel & Press, White, 50/Pack
Item #: 901-282875LUX
Item #: 901-282875LUX
A8 Invitation Envelopes (5 1/2 x 8 1/8) are perfect for party invites/thank you cards/wedding invites/announcements
Comes in 60lb. White w/Peel & Press, 60lb. Text Paper
Dimensions: 5 1/2"L x 8 1/8"W
$24.99
1-2 pack
($0.50/Envelope)
Save 8%
$22.99
3+ pack
($0.46/Envelope)
Add to cart
Earn 24 points
Free delivery w/ $25+
JAM PAPER 7.5 x 7.5 Square Invitation Envelopes, Ivory, 100/Pack (23131971)JAM PAPER 7.5 x 7.5 Square Invitation Envelopes, Ivory, 100/Pack (23131971)
Quick view
JAM PAPER 7.5 x 7.5 Square Invitation Envelopes, Ivory, 100/Pack (23131971)
Item #: 901-24295249
Item #: 901-24295249
Ivory envelope
Size: 7 1/2 x 7 1/2 inches
Quantity: 100 envelopes per carton
$54.99
1000+ pack
($0.05/Envelope)
Add to cart
Earn 54990 points
Free delivery
LUX® 70lb 4 1/4x6 1/4 Square Flap Envelopes W/Peel&Press; Grocery Bag Brown, 1000/BX
Quick view
LUX® 70lb 4 1/4"x6 1/4" Square Flap Envelopes W/Peel&Press; Grocery Bag Brown, 1000/BX
Item #: 901-516312LUX
Item #: 901-516312LUX
1000/box
Grocery bag
Size: A4 (4 1/4"x6 1/4")
$154.99
Per box
($0.15/Envelope)
Add to cart
Earn 154 points
Free delivery
JAM Paper 7 1/2 x 7 1/2 Square Envelopes ,Sunflower, 50 Pack, Yellow (EX8555-12-50)
Quick view
JAM Paper 7 1/2 x 7 1/2 Square Envelopes ,Sunflower, 50 Pack, Yellow (EX8555-12-50)
Item #: 901-24578550
Item #: 901-24578550
Square Envelopes
7.5" x 7.5"
Yellow
$18.99
Per pack
($0.38/Envelope)
Add to cart
Earn 18 points
Free delivery w/ $25+
JAM Paper 9 x 9 Square Invitation Envelopes, White, 100/Pack (4232B)JAM Paper 9 x 9 Square Invitation Envelopes, White, 100/Pack (4232B)
Quick view
JAM Paper 9 x 9 Square Invitation Envelopes, White, 100/Pack (4232B)
Item #: 901-261327JAM
Item #: 901-261327JAM
Size: 9" x 9"
Closure: Gum
Opening: Square
$48.99
Per box
($0.49/Envelope)
Add to cart
Earn 48 points
Free delivery
New Customers
Save
$20 off when you spend $100 - New Customer Offer
Discount
Limit 1
0 points
Details
Redeemed
0 Redeemed
Redeem Redeem
Featured
Save
$10 Prezzee COFFEE eGift Card - includes Starbucks, Dunkin and more
210 points
175 points
Details
0 Redeemed
Redeem Redeem
Featured
Save
8 Soft Cookies - Choc Chip, Snickerdoodle, Oatmeal & Vanilla8 Soft Cookies - Choc Chip, Snickerdoodle, Oatmeal & Vanilla
75 points
Limit 1
25 points
Details
0 Redeemed
Redeem Redeem
Featured
Save
Mystery Gift - up to $19.99 value
99 points
Details
0 Redeemed
Redeem Redeem
Lux® 5 x 5 70lbs. Square Flap Envelopes W/Peel & Press; Bright White, 50/Pk
Quick view
Lux® 5" x 5" 70lbs. Square Flap Envelopes W/Peel & Press; Bright White, 50/Pk
Item #: 901-282150LUX
(1)
Item #: 901-282150LUX
Bright white
Size: 5" x 5"
Closure: Peel and press
$17.99
Per pack
($0.36/Envelope)
Add to cart
Earn 17 points
Free delivery w/ $25+
JAM Paper 3.125 x 3.125 Mini Square Envelopes, White, 25/Pack (201229)JAM Paper 3.125 x 3.125 Mini Square Envelopes, White, 25/Pack (201229)
Quick view
JAM Paper 3.125 x 3.125 Mini Square Envelopes, White, 25/Pack (201229)
Item #: 901-262665JAM
(3)
Item #: 901-262665JAM
Size: 3 1/8" x 3 1/8"
Closure: Gum
Opening: Square
$7.99
Per pack
($0.32/Envelope)
Add to cart
Earn 7 points
Free delivery w/ $25+
JAM Paper 6 x 6 Square Colored Invitation Envelopes, Green Recycled, 25/Pack (2792267)JAM Paper 6 x 6 Square Colored Invitation Envelopes, Green Recycled, 25/Pack (2792267)
Quick view
JAM Paper 6 x 6 Square Colored Invitation Envelopes, Green Recycled, 25/Pack (2792267)
Item #: 901-261276JAM
Item #: 901-261276JAM
Size: 6" x 6"
Closure: Gum
Opening: Square
$25.99
Per pack
($1.04/Envelope)
Add to cart
Earn 25 points
Free delivery
80 lb 5 3/4 x 5 3/4 Peel & Press Square Linen Envelopes, White, 50/Pack
Quick view
80 lb 5 3/4" x 5 3/4" Peel & Press Square Linen Envelopes, White, 50/Pack
Item #: 901-1029946LUX
Item #: 901-1029946LUX
Square envelopes perfect for announcements/weddings/greeting cards/invitations
Comes in White Linen, 80lb. Text Paper
Dimensions: 5 3/4"H x 5 3/4"W
$32.99
Per pack
($0.66/Envelope)
Add to cart
Earn 32 points
Free delivery
JAM PAPER Square Metallic Invitation Envelopes, 7.5 x 7.5, Silver Stardream, 25/Pack (3994896I)JAM PAPER Square Metallic Invitation Envelopes, 7.5 x 7.5, Silver Stardream, 25/Pack (3994896I)
Quick view
JAM PAPER Square Metallic Invitation Envelopes, 7.5" x 7.5", Silver Stardream, 25/Pack (3994896I)
Item #: 901-1588511JAM
Item #: 901-1588511JAM
Color: Stardream Silver
Size: 7 1/2 x 7 1/2 inches
Quantity: 25 per pack
$29.69
Per pack
($1.19/EACH)
Add to cart
Earn 29 points
Free delivery
JAM Paper 7.5 x 7.5 Square Invitation Envelopes with Euro Flap, Ivory, 25/Pack (2792287)JAM Paper 7.5 x 7.5 Square Invitation Envelopes with Euro Flap, Ivory, 25/Pack (2792287)
Quick view
JAM Paper 7.5 x 7.5 Square Invitation Envelopes with Euro Flap, Ivory, 25/Pack (2792287)
Item #: 901-24295161
Item #: 901-24295161
Ivory envelope
Size: (7 1/2 x 7 1/2) inches
Quantity: 25 envelopes per carton
$25.99
Per pack
($1.04/Envelope)
Add to cart
Earn 25 points
Free delivery
JAM Paper 9.5 x 9.5 Square Translucent Vellum Invitation Envelopes, Clear, 25/Pack (2851357)
Quick view
JAM Paper 9.5 x 9.5 Square Translucent Vellum Invitation Envelopes, Clear, 25/Pack (2851357)
Item #: 901-262132JAM
(1)
Item #: 901-262132JAM
Size: 9 1/2" x 9 1/2"
Closure: Gum
Opening: Square
$30.99
Per pack
($1.24/Envelope)
Add to cart
Earn 30 points
Free delivery
JAM Paper 11.5 x 11.5 Large Square Invitation Envelopes, White, 25/Pack (3992321)JAM Paper 11.5 x 11.5 Large Square Invitation Envelopes, White, 25/Pack (3992321)
Quick view
JAM Paper 11.5" x 11.5" Large Square Invitation Envelopes, White, 25/Pack (3992321)
Item #: 901-261310JAM
(2)
Item #: 901-261310JAM
Size: 11 1/2" x 11 1/2"
Closure: Gum
Opening: Square
$33.99
Per pack
($1.36/Envelope)
Add to cart
Earn 33 points
Free delivery
JAM Paper 3.125 x 3.125 Mini Square Invitation Envelopes, Black Linen, Bulk 1000/Carton (V01200B)JAM Paper 3.125 x 3.125 Mini Square Invitation Envelopes, Black Linen, Bulk 1000/Carton (V01200B)
Quick view
JAM Paper 3.125 x 3.125 Mini Square Invitation Envelopes, Black Linen, Bulk 1000/Carton (V01200B)
Item #: 901-261596
Item #: 901-261596
Closure: Gum
Opening: Square
Material: Paper
$452.99
Per carton
($0.45/Envelope)
Add to cart
Earn 452 points
Free delivery
JAM Paper 7.5 x 7.5 Square Translucent Vellum Invitation Envelopes, Clear, 50/Pack (81981I)
Quick view
JAM Paper 7.5 x 7.5 Square Translucent Vellum Invitation Envelopes, Clear, 50/Pack (81981I)
Item #: 901-1589073JAM
Item #: 901-1589073JAM
Clear translucent envelope
Blank interior for personalized message
Envelope Size: 7.5" x 7.5"
$58.99
Per pack
($1.18/Envelope)
Add to cart
Earn 58 points
Free delivery
JAM Paper 7 1/2 x 7 1/2 Square Envelopes ,Grocery Bag, 50 Pack, Brown (8555-GB-50)
Quick view
JAM Paper 7 1/2 x 7 1/2 Square Envelopes ,Grocery Bag, 50 Pack, Brown (8555-GB-50)
Item #: 901-24578527
Item #: 901-24578527
Square Envelopes
7.5" x 7.5"
Brown Kraft
$19.99
Per pack
($0.40/Envelope)
Add to cart
Earn 19 points
Free delivery w/ $25+
JAM Paper 6 x 6 Square Invitation Envelopes, White, 25/Pack (28416)JAM Paper 6 x 6 Square Invitation Envelopes, White, 25/Pack (28416)
Quick view
JAM Paper 6 x 6 Square Invitation Envelopes, White, 25/Pack (28416)
Item #: 901-261302JAM
Item #: 901-261302JAM
Size: 6" x 6"
Closure: Gum
Opening: Square
$20.99
Per pack
($0.84/Envelope)
Add to cart
Earn 20 points
Free delivery w/ $25+
JAM Paper 8.5 x 8.5 Square Strathmore Invitation Envelopes, Bright White Wove, 25/Pack (900858534)JAM Paper 8.5 x 8.5 Square Strathmore Invitation Envelopes, Bright White Wove, 25/Pack (900858534)
Quick view
JAM Paper 8.5 x 8.5 Square Strathmore Invitation Envelopes, Bright White Wove, 25/Pack (900858534)
Item #: 901-262536JAM
Item #: 901-262536JAM
Size: 8 1/2" x 8 1/2"
Closure: Gum
Opening: Square
$25.99
Per pack
($1.04/Envelope)
Add to cart
Earn 25 points
Free delivery
JAM Paper 6 x 6 Square Invitation Envelopes, Dark Grey, 25/Pack (36396439)JAM Paper 6 x 6 Square Invitation Envelopes, Dark Grey, 25/Pack (36396439)
Quick view
JAM Paper 6 x 6 Square Invitation Envelopes, Dark Grey, 25/Pack (36396439)
Item #: 901-261454JAM
Item #: 901-261454JAM
Size: 6" x 6"
Closure: Gum
Opening: Square
$30.99
Per pack
($1.24/Envelope)
Add to cart
Earn 30 points
Free delivery
LUX 7 x 7 Square Envelopes, 50/Box, 70lb. White (10936-50)
Quick view
LUX 7 x 7 Square Envelopes, 50/Box, 70lb. White (10936-50)
Item #: 901-282279LUX
(1)
Item #: 901-282279LUX
Bright white
Size: 7" x 7"
Closure: Peel and press
$45.99
1-2 pack
($0.92/Envelope)
Save 7%
$42.99
3+ pack
($0.86/Envelope)
Add to cart
Earn 45 points
Free delivery
LUX 5 1/2 x 5 1/2 Square Envelopes, 50/Box, White - 100% Recycled (8515-WPC-50)
Quick view
LUX 5 1/2 x 5 1/2 Square Envelopes, 50/Box, White - 100% Recycled (8515-WPC-50)
Item #: 901-282135LUX
(1)
Item #: 901-282135LUX
5 1/2 x 5 1/2 Square Envelopes are perfect for announcements/weddings/greeting cards/invitations
Comes in White - 100% Recycled, 80lb. Text Paper
Dimensions: 5 1/2"L x 5 1/2"W
$27.99
1-2 pack
($0.56/Envelope)
Save 11%
$24.99
3+ pack
($0.50/Envelope)
Add to cart
Earn 27 points
Free delivery
1 23 ... 13
Displaying 1-24 of 293

Delivering quality & savings with our in-house brands

Staples logo Tru Red logo Union & Scale logo Pick Me Up logo Coastwide logo Workplace logo Perk logo Staples tech logo
Trustpilot logo Trustpilot rating 4.5 out of 5

Quill help center

Call us 1-800-982-3400

New to Quill? Would you like to learn more about how we can help your business?

Start a chat.
Email us.
Looking for coupons?
You will be redirected to travel.quill.com in a new tab. Hit Okay to continue.
Okay
Go to Cart
Subtotal: ( items / rewards):
Rewards balance:
Rewards & coupons center
Loading your cart
Quick view
Shared Cart Details
Please review this product
Upgrade to Rewards+
$49.99/year
Member benefits
$39.99 Quill 10-Ream Copy Paper
Up to 4 cartons per month
10% in QUILLCASH Rewards on ink & toner
View policy
$15 off monthly coupon
Always free shipping
View policy
Earn 10% more points + more time to use
5% off everday prices
10% off discount on in-house brands
Member exclusive rewards
Site-wide price match guarantee
View policy
Disclaimer
Offers and discounts exclude HP,Samsung and Epson. We offer a worry-free enrollment guarantee - if you are not satisfied with your Rewards+ membership, you can cancel at any time for a prorated refund. By enrolling into the Reward+ program, you are agreeing to the Terms and Conditions.
See full membership details