Skip to main content Skip to footer
Extreme Winter Storm: Prep your business
Get $15 off your first order of $150
Save 5% with Rewards+
Fanatical customer service since 1956
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)
Brown (18)
Yellow (8)
Black (24)
Red (15)
Beige (11)
Green (9)
Pink (9)
Gray/Silver (13)
Blue (11)
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)
1000 Per Pack (28)
100 Per Pack (17)
25 Per Pack (51)
All filters
Sort by:
Best matchPrice: High-LowPrice: Low-HighRating: High-Low
All filters 293 items found
JAM Paper 9 x 9 Square Invitation Envelopes, White, 25/Pack (4232)JAM Paper 9 x 9 Square Invitation Envelopes, White, 25/Pack (4232)
Quick view
JAM Paper 9 x 9 Square Invitation Envelopes, White, 25/Pack (4232)
Item #: 901-263923JAM
(4)
Item #: 901-263923JAM
Size: 9" x 9"
Closure: Gum
Opening: Square
$17.99
Per pack
($0.72/Envelope)
Add to cart
Earn 17 points
Free delivery w/ $25+
LUX 9 x 9 Square Envelopes, 50/Box, Clear Translucent (8585-50-50)
Quick view
LUX 9 x 9 Square Envelopes, 50/Box, Clear Translucent (8585-50-50)
Item #: 901-282322LUX
Item #: 901-282322LUX
9 x 9 Square Envelopes are perfect for announcements/weddings/greeting cards/invitations
Comes in Clear Translucent, 30lb. Text Paper
Dimensions: 9"L x 9"W
$48.89
Per pack
($0.98/Envelope)
Add to cart
Earn 48 points
Free delivery
JAM Paper Square Envelopes, Peel & Press, Garnet, 6 x 6, 250 Pack (8525-101-250)
Quick view
JAM Paper Square Envelopes, Peel & Press, Garnet, 6 x 6, 250 Pack (8525-101-250)
Item #: 901-24578476
Item #: 901-24578476
Square Envelopes
6" x 6"
Garnet Red
$63.99
Per pack
($0.26/Envelope)
Add to cart
Earn 63 points
Free delivery
JAM Paper 9 x 9 Square Invitation Envelopes, White, 50/Pack (4232I)JAM Paper 9 x 9 Square Invitation Envelopes, White, 50/Pack (4232I)
Quick view
JAM Paper 9 x 9 Square Invitation Envelopes, White, 50/Pack (4232I)
Item #: 901-1588501JAM
(2)
Item #: 901-1588501JAM
Regular white square envelope
Blank interior for personalized message
Envelope Size: 9" x 9"
$30.99
Per pack
($0.62/Envelope)
Add to cart
Earn 30 points
Free delivery
JAM Paper Square Envelopes, Peel & Press, 3 1/4 x 3 1/4, Black Linen, 250 Pack (8503-BLI-250)
Quick view
JAM Paper Square Envelopes, Peel & Press, 3 1/4 x 3 1/4, Black Linen, 250 Pack (8503-BLI-250)
Item #: 901-24578286
Item #: 901-24578286
Square Envelopes
3 1/4" x 3 1/4” (82.55mm x 82.55mm)
Black
$60.99
Per pack
($0.24/Envelope)
Add to cart
Earn 60 points
Free delivery
JAM Paper® 10 x 10 Large Square Invitation Envelopes, White, 100/Pack (03992319B)JAM Paper® 10 x 10 Large Square Invitation Envelopes, White, 100/Pack (03992319B)
Quick view
JAM Paper® 10 x 10 Large Square Invitation Envelopes, White, 100/Pack (03992319B)
Item #: 901-261329JAM
(1)
Item #: 901-261329JAM
Opening: Square
Size: 10" x 10"
Closure: Gum
$69.09
Per box
($0.69/Envelope)
Add to cart
Earn 69 points
Free delivery
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® 80lb 5 3/4x8 3/4 Square Flap Envelopes W/Peel&Press; Black Linen, 500/BX
Quick view
LUX® 80lb 5 3/4"x8 3/4" Square Flap Envelopes W/Peel&Press; Black Linen, 500/BX
Item #: 901-515931LUX
Item #: 901-515931LUX
Black linen
Size: A9 (5 3/4"x8 3/4")
Closure: Peel & press
$118.99
Per box
($0.24/Envelope)
Add to cart
Earn 118 points
Free delivery
New Customers
Save
$5 off when you spend $100
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
New Customers
Save
8 Soft Cookies - Choc Chip, Snickerdoodle, Oatmeal & Vanilla8 Soft Cookies - Choc Chip, Snickerdoodle, Oatmeal & Vanilla
75 points
25 points
Details
0 Redeemed
Redeem Redeem
Featured
Save
Mystery Gift - up to $19.99 value
99 points
Details
0 Redeemed
Redeem Redeem
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
LUX® 60lb 4 3/8x5 3/4 Square Flap Envelopes W/Peel&Press; White W/Gold LUX, 500/BX
Quick view
LUX® 60lb 4 3/8"x5 3/4" Square Flap Envelopes W/Peel&Press; White W/Gold LUX, 500/BX
Item #: 901-513838LUX
Item #: 901-513838LUX
White with gold LUx lining
Size: A2 (4 3/8"x5 3/4")
Closure: Peel & press
$85.99
Per box
($0.17/Envelope)
Add to cart
Earn 85 points
Free delivery
JAM Paper Square Envelopes, Peel & Press, 3 1/4 x 3 1/4, Sunflower Yellow, 250 Pack (8503-84-250)
Quick view
JAM Paper Square Envelopes, Peel & Press, 3 1/4 x 3 1/4, Sunflower Yellow, 250 Pack (8503-84-250)
Item #: 901-24578414
Item #: 901-24578414
Square Envelopes
3.25" x 3.25"
Yellow
$58.99
Per pack
($0.24/Envelope)
Add to cart
Earn 58 points
Free delivery
JAM Paper Square Envelopes, Peel & Press, 6 1/4 x 6 1/4, 70lb, Avocado Green, 50 Pack (8530-102-50)
Quick view
JAM Paper Square Envelopes, Peel & Press, 6 1/4 x 6 1/4, 70lb, Avocado Green, 50 Pack (8530-102-50)
Item #: 901-24578451
Item #: 901-24578451
Square Envelopes
6.25" x 6.25"
Avocado Green
$20.19
Per pack
($0.40/Envelope)
Add to cart
Earn 20 points
Free delivery w/ $25+
LUX® 80lb 4 1/8x9 1/2 Square Flap Metallic Envelopes; Crystal, 500/BX
Quick view
LUX® 80lb 4 1/8"x9 1/2" Square Flap Metallic Envelopes; Crystal, 500/BX
Item #: 901-516445LUX
Item #: 901-516445LUX
Crystal metallic
Size: #10 (4 1/8"x9 1/2")
Closure: Peel & press
$173.39
Per box
($0.35/Envelope)
Add to cart
Earn 173 points
Free delivery
LUX® 60lb 5 1/4x7 1/4 Square Flap Envelopes W/Peel&Press; White W/Silver LUX, 500/BX
Quick view
LUX® 60lb 5 1/4"x7 1/4" Square Flap Envelopes W/Peel&Press; White W/Silver LUX, 500/BX
Item #: 901-513811LUX
Item #: 901-513811LUX
White with silver lux lining
Size: A7 (5 1/4"x7 1/4")
Closure: Peel & press
$130.69
Per box
($0.26/Envelope)
Add to cart
Earn 130 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 10.5 x 10.5 Square Invitation Envelopes, White, 100/Pack (03992320B)JAM Paper 10.5 x 10.5 Square Invitation Envelopes, White, 100/Pack (03992320B)
Quick view
JAM Paper 10.5" x 10.5" Square Invitation Envelopes, White, 100/Pack (03992320B)
Item #: 901-261330JAM
Item #: 901-261330JAM
Opening: Square
Size: 10 1/2" x 10 1/2"
Closure: Gum
$69.99
Per box
($0.70/Envelope)
Add to cart
Earn 69 points
Free delivery
LUX® 70lb 5 1/4x7 1/4 Square Flap Exclusive Envelopes W/Peel&Press; Sunflower Yellow, 500/BX
Quick view
LUX® 70lb 5 1/4"x7 1/4" Square Flap Exclusive Envelopes W/Peel&Press; Sunflower Yellow, 500/BX
Item #: 901-514271LUX
Item #: 901-514271LUX
Sunflower
Size: A7 (5 1/4"x7 1/4")
Closure: Peel & press
$113.99
Per box
($0.23/Envelope)
Add to cart
Earn 113 points
Free delivery
LUX® 80lb 4 1/4x6 1/4 Square Flap LUX Envelopes W/Peel&Press; Candy Pink, 500/BX
Quick view
LUX® 80lb 4 1/4"x6 1/4" Square Flap LUX Envelopes W/Peel&Press; Candy Pink, 500/BX
Item #: 901-513692LUX
Item #: 901-513692LUX
Candy pink
Size: A4 (4 1/4"x6 1/4")
Closure: Peel & press
$109.99
Per box
($0.22/Envelope)
Add to cart
Earn 109 points
Free delivery
LUX® 30lb 4 3/4x6 1/2 Square Flap Envelopes W/Peel&Press; Clear Translucent, 500/BX
Quick view
LUX® 30lb 4 3/4"x6 1/2" Square Flap Envelopes W/Peel&Press; Clear Translucent, 500/BX
Item #: 901-516191LUX
Item #: 901-516191LUX
Clear translucent
Size: A6 (4 3/4"x6 1/2")
Closure: Peel & press
$142.99
Per box
($0.29/Envelope)
Add to cart
Earn 142 points
Free delivery
JAM Paper Square Envelopes, Peel & Press, Candy Pink, 6 1/4 x 6 1/4, 250 Pack (8530-23-250)
Quick view
JAM Paper Square Envelopes, Peel & Press, Candy Pink, 6 1/4 x 6 1/4, 250 Pack (8530-23-250)
Item #: 901-24578535
Item #: 901-24578535
Square Envelopes
6.25" x 6.25"
Pink
$67.99
Per pack
($0.27/Envelope)
Add to cart
Earn 67 points
Free delivery
JAM Paper Square Envelopes, Peel & Press, 60lb Blush Pink, 6 1/4 x 6 1/4, 500 Pack (8530-114-500)
Quick view
JAM Paper Square Envelopes, Peel & Press, 60lb Blush Pink, 6 1/4 x 6 1/4, 500 Pack (8530-114-500)
Item #: 901-24578538
Item #: 901-24578538
Square Envelopes
6.25" x 6.25"
Blush Pink
$118.99
Per pack
($0.24/Envelope)
Add to cart
Earn 118 points
Free delivery
JAM Paper Square Envelopes, Peel & Press, Citrus Yellow, 6 1/4 x 6 1/4, 500/Pack (8530-L20-500)
Quick view
JAM Paper Square Envelopes, Peel & Press, Citrus Yellow, 6 1/4 x 6 1/4, 500/Pack (8530-L20-500)
Item #: 901-24578524
Item #: 901-24578524
Square Envelopes
6.25" x 6.25"
Yellow
$118.99
Per pack
($0.24/Envelope)
Add to cart
Earn 118 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 4 3/8x5 3/4 Square Flap Exclusive Envelopes W/Peel&Press; Sunflower Yellow, 500/BX
Quick view
LUX® 70lb 4 3/8"x5 3/4" Square Flap Exclusive Envelopes W/Peel&Press; Sunflower Yellow, 500/BX
Item #: 901-514441LUX
Item #: 901-514441LUX
Sunflower
Size: A2 (4 3/8"x5 3/4")
Closure: Peel & press
$94.99
Per box
($0.19/Envelope)
Add to cart
Earn 94 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