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)
Black (24)
Brown (18)
Red (15)
Gray/Silver (13)
Beige (11)
Yellow (8)
Clear (21)
Blue (11)
Green (9)
Pink (9)
Gold (7)
Ivory (2)
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
500 Per Pack (60)
50 Per Pack (91)
250 Per Pack (38)
25 Per Pack (51)
1000 Per Pack (28)
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
LUX® 60lb 5 3/4x8 3/4 Square Flap Envelopes W/Peel&Press; White/Gold, 500/BX
Quick view
LUX® 60lb 5 3/4"x8 3/4" Square Flap Envelopes W/Peel&Press; White/Gold, 500/BX
Item #: 901-513774LUX
Item #: 901-513774LUX
White with gold lux lining
Size: A9 (5 3/4"x8 3/4")
Closure: Peel & press
$159.99
Per box
($0.32/Envelope)
Add to cart
Earn 159 points
Free delivery
LUX® 70lb 8x8 Square Flap Envelopes W/Peel&Press; Bright White, 500/BX
Quick view
LUX® 70lb 8"x8" Square Flap Envelopes W/Peel&Press; Bright White, 500/BX
Item #: 901-516584LUX
Item #: 901-516584LUX
500/box
Bright white
Size: 8"x8"
$157.99
Per box
($0.32/Envelope)
Add to cart
Earn 157 points
Free delivery
LUX® 80lb 4 3/4x6 1/2 Square Flap Envelopes W/Peel&Press; Bright White, 500/BX
Quick view
LUX® 80lb 4 3/4"x6 1/2" Square Flap Envelopes W/Peel&Press; Bright White, 500/BX
Item #: 901-513969LUX
Item #: 901-513969LUX
500/box
Bright white
Size: A6 (4 3/4"x6 1/2")
$93.39
Per box
($0.19/Envelope)
Add to cart
Earn 93 points
Free delivery
JAM Paper 7 1/2 x 7 1/2 Square Envelopes ,80 lb,50 Pack, Gray (EX8555-22-50)
Quick view
JAM Paper 7 1/2 x 7 1/2 Square Envelopes ,80 lb,50 Pack, Gray (EX8555-22-50)
Item #: 901-24578454
Item #: 901-24578454
Square Envelopes
7.5" x 7.5"
Grey
$17.99
Per pack
($0.36/Envelope)
Add to cart
Earn 17 points
Free delivery w/ $25+
JAM Paper Square Envelopes, Peel & Press, Garnet, 6 x 6, 50 Pack (8525-101-50)
Quick view
JAM Paper Square Envelopes, Peel & Press, Garnet, 6 x 6, 50 Pack (8525-101-50)
Item #: 901-24578466
Item #: 901-24578466
Square Envelopes
6" x 6"
Garnet Red
$17.99
Per pack
($0.36/Envelope)
Add to cart
Earn 17 points
Free delivery w/ $25+
JAM Paper® 5.5 x 5.5 Square Invitation Envelopes, Brown Kraft Paper Bag, 50/Pack (46317108I)
Quick view
JAM Paper® 5.5 x 5.5 Square Invitation Envelopes, Brown Kraft Paper Bag, 50/Pack (46317108I)
Item #: 901-1588440JAM
Item #: 901-1588440JAM
Brown Kraft paper bag recycled envelope
Blank interior for personalized message
Envelope Size: 5.5" x 5.5"
$58.39
Per pack
($1.17/Envelope)
Add to cart
Earn 58 points
Free delivery
LUX 8 x 8 Square Envelopes 50/Box) 50/Box, 70lb. White (10969-50)
Quick view
LUX 8 x 8 Square Envelopes 50/Box) 50/Box, 70lb. White (10969-50)
Item #: 901-282295LUX
Item #: 901-282295LUX
8 x 8 Square Envelopes are perfect for announcements/weddings/greeting cards/invitations
Comes in 70lb. White, 70lb. Text Paper
Dimensions: 8"L x 8"W
$26.99
Per pack
($0.54/Envelope)
Add to cart
Earn 26 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
Mystery Gift - up to $19.99 value
99 points
Details
0 Redeemed
Redeem Redeem
Save
GIFT OF THE DAY: Amuse 36 Color Eyeshadow PaletteGIFT OF THE DAY: Amuse 36 Color Eyeshadow Palette
140 points
Details
0 Redeemed
Redeem Redeem
LUX® 80lb 5 3/4x8 3/4 Square Flap Metallic Envelopes W/Peel&Press; Silver, 500/BX
Quick view
LUX® 80lb 5 3/4"x8 3/4" Square Flap Metallic Envelopes W/Peel&Press; Silver, 500/BX
Item #: 901-515385LUX
Item #: 901-515385LUX
Silver metallic
Size: A9 (5 3/4"x8 3/4")
Closure: Peel & press
$203.99
Per box
($0.41/Envelope)
Add to cart
Earn 203 points
Free delivery
LUX 7 x 7 Square Envelopes, 250/Box, Pool (LUX-8545-102-25)
Quick view
LUX 7 x 7 Square Envelopes, 250/Box, Pool (LUX-8545-102-25)
Item #: 901-387951LUX
Item #: 901-387951LUX
Moisture-activated glue closure creates a smooth, secure seal
Comes in 70lb. Bright white, 70lb. Text paper
Laser and inkjet printer compatible
$36.09
Per box
($0.14/Envelope)
Add to cart
Earn 36 points
Free delivery
JAM Paper Square Envelopes, Peel & Press, Garnet Red, 6 x 6, 500 Pack (8525-101-500)
Quick view
JAM Paper Square Envelopes, Peel & Press, Garnet Red, 6 x 6, 500 Pack (8525-101-500)
Item #: 901-24578468
Item #: 901-24578468
Square Envelopes
6" x 6"
Garnet Red
$118.99
Per pack
($0.24/Envelope)
Add to cart
Earn 118 points
Free delivery
LUX 5 x 5 Square Envelopes, 250/Box, Natural Linen (8505-NLI-250)
Quick view
LUX 5 x 5 Square Envelopes, 250/Box, Natural Linen (8505-NLI-250)
Item #: 901-514851LUX
Item #: 901-514851LUX
5 x 5 Square Envelopes are perfect for announcements/weddings/greeting cards/invitations
Comes in Natural Linen, 80lb. Text Paper
Peel & Press Sealing Method
$81.99
Per box
($0.33/Envelope)
Add to cart
Earn 81 points
Free delivery
JAM Paper 7 1/2 x 7 1/2 Square Envelopes ,Smoke, 500 Pack, Gray (EX8555-22-500)
Quick view
JAM Paper 7 1/2 x 7 1/2 Square Envelopes ,Smoke, 500 Pack, Gray (EX8555-22-500)
Item #: 901-24578548
Item #: 901-24578548
Square Envelopes
7.5" x 7.5"
Grey
$307.99
Per pack
($0.62/Envelope)
Add to cart
Earn 307 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
JAM Paper Square Envelopes, Peel & Press, 3 1/4 x 3 1/4, Sunflower Yellow, 500 Pack (8503-84-500)
Quick view
JAM Paper Square Envelopes, Peel & Press, 3 1/4 x 3 1/4, Sunflower Yellow, 500 Pack (8503-84-500)
Item #: 901-24578417
Item #: 901-24578417
Square Envelopes
3.25" x 3.25"
Yellow
$109.99
Per pack
($0.22/Envelope)
Add to cart
Earn 109 points
Free delivery
JAM Paper 7 1/2 x 7 1/2 Square Envelopes, Sunflower, 250 Pack, Yellow (EX8555-12-250)
Quick view
JAM Paper 7 1/2 x 7 1/2 Square Envelopes, Sunflower, 250 Pack, Yellow (EX8555-12-250)
Item #: 901-24578458
Item #: 901-24578458
Square Envelopes
7.5" x 7.5"
Yellow
$170.99
Per pack
($0.68/Envelope)
Add to cart
Earn 170 points
Free delivery
LUX® 70lb 4 3/8x5 3/4 Square Flap Envelopes W/Peel&Press; Natural Linen, 500/BX
Quick view
LUX® 70lb 4 3/8"x5 3/4" Square Flap Envelopes W/Peel&Press; Natural Linen, 500/BX
Item #: 901-516391LUX
Item #: 901-516391LUX
Natural linen
Size: A2 (4 3/8"x5 3/4")
Closure: Peel & press
$88.09
Per box
($0.18/Envelope)
Add to cart
Earn 88 points
Free delivery
LUX® 70lb 5 3/4x8 3/4 Square Flap Linen Envelopes W/Peel&Press; White, 500/BX
Quick view
LUX® 70lb 5 3/4"x8 3/4" Square Flap Linen Envelopes W/Peel&Press; White, 500/BX
Item #: 901-515910LUX
Item #: 901-515910LUX
White linen
Size: A9 (5 3/4"x8 3/4")
Closure: Peel & press
$123.99
Per box
($0.25/Envelope)
Add to cart
Earn 123 points
Free delivery
LUX® 80lb 4 3/8x5 3/4 Square Flap Linen Envelopes W/Peel&Press; Black, 500/BX
Quick view
LUX® 80lb 4 3/8"x5 3/4" Square Flap Linen Envelopes W/Peel&Press; Black, 500/BX
Item #: 901-516393LUX
Item #: 901-516393LUX
Black linen
Size: A2 (4 3/8"x5 3/4")
Closure: Peel & press
$78.99
Per box
($0.16/Envelope)
Add to cart
Earn 78 points
Free delivery
LUX® 70lb 5 1/2x5 1/2 Square Flap Envelopes W/Peel&Press; Grocery Bag Brown, 1000/BX
Quick view
LUX® 70lb 5 1/2"x5 1/2" Square Flap Envelopes W/Peel&Press; Grocery Bag Brown, 1000/BX
Item #: 901-514818LUX
Item #: 901-514818LUX
1000/box
Grocery bag
Size: 5 1/2"x5 1/2"
$214.99
Per box
($0.21/Envelope)
Add to cart
Earn 214 points
Free delivery
JAM Paper 6.5 x 6.5 Square Invitation Envelopes, Teal, 50/Pack (2101419222i)JAM Paper 6.5 x 6.5 Square Invitation Envelopes, Teal, 50/Pack (2101419222i)
Quick view
JAM Paper 6.5 x 6.5 Square Invitation Envelopes, Teal, 50/Pack (2101419222i)
Item #: 901-23981158
Item #: 901-23981158
Teal Invitation Envelopes
Size: 6.5 x 6.5 inches
Quantity: 50
$58.99
Per pack
($1.18/Envelope)
Add to cart
Earn 58 points
Free delivery
JAM Paper 5.5 x 5.5 Square Translucent Vellum Invitation Envelopes, Clear, 25/Pack (74354)
Quick view
JAM Paper 5.5 x 5.5 Square Translucent Vellum Invitation Envelopes, Clear, 25/Pack (74354)
Item #: 901-262125JAM
Item #: 901-262125JAM
Clear
Size: 5 1/2" x 5 1/2"
Closure: Gum
$25.99
Per pack
($1.04/Envelope)
Add to cart
Earn 25 points
Free delivery
JAM Paper 5.5 x 5.5 Square Invitation Envelopes, Black Linen, Bulk 250/Box (V01210H)JAM Paper 5.5 x 5.5 Square Invitation Envelopes, Black Linen, Bulk 250/Box (V01210H)
Quick view
JAM Paper 5.5 x 5.5 Square Invitation Envelopes, Black Linen, Bulk 250/Box (V01210H)
Item #: 901-1589755JAM
Item #: 901-1589755JAM
Black linen recycled envelope
Blank interior for personalized message
Envelope Size: 5.5" x 5.5"
$236.99
Per pack
($0.95/Envelope)
Add to cart
Earn 236 points
Free delivery
JAM Paper 5.5 x 5.5 Square Invitation Envelopes, Black Linen, 25/Pack (V01210)JAM Paper 5.5 x 5.5 Square Invitation Envelopes, Black Linen, 25/Pack (V01210)
Quick view
JAM Paper 5.5 x 5.5 Square Invitation Envelopes, Black Linen, 25/Pack (V01210)
Item #: 901-261575JAM
Item #: 901-261575JAM
Size: 5 1/2" x 5 1/2"
Closure: Gum
Opening: Square
$25.99
Per pack
($1.04/Envelope)
Add to cart
Earn 25 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