Skip to main content Skip to footer
Same-day document printing
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)
Pink (9)
Yellow (8)
Brown (18)
Red (15)
Beige (11)
Multicolor (1)
Clear (21)
Gray/Silver (13)
Blue (11)
Green (9)
Gold (7)
Ivory (2)
Purple (2)
Metallic (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)
500 Per Pack (60)
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 4 3/8x5 3/4 Square Flap Envelopes W/Peel&Press; White, 500/BX
Quick view
LUX® 60lb 4 3/8"x5 3/4" Square Flap Envelopes W/Peel&Press; White, 500/BX
Item #: 901-516326LUX
Item #: 901-516326LUX
White
Size: A2 (4 3/8"x5 3/4")
Closure: Peel & press
$60.99
Per box
($0.12/Envelope)
Add to cart
Earn 60 points
Free delivery
Lux® 3 1/4 x 3 1/4 70lbs. Square Flap Envelopes W/Self Adhesive; Bright White, 50/Pk
Quick view
Lux® 3 1/4" x 3 1/4" 70lbs. Square Flap Envelopes W/Self Adhesive; Bright White, 50/Pk
Item #: 901-282097LUX
Item #: 901-282097LUX
Bright white
Size: 3 1/4" x 3 1/4"
Closure: Self-adhesive
$19.09
Per pack
($0.38/Envelope)
Add to cart
Earn 19 points
Free delivery w/ $25+
JAM Paper 4.5 x 4.5 Square Invitation Envelopes, White, Bulk 250/Box (439911145H)JAM Paper 4.5 x 4.5 Square Invitation Envelopes, White, Bulk 250/Box (439911145H)
Quick view
JAM Paper 4.5 x 4.5 Square Invitation Envelopes, White, Bulk 250/Box (439911145H)
Item #: 901-1589775JAM
(2)
Item #: 901-1589775JAM
White envelope
Blank interior for personalized message
Envelope Size: 4.5" x 4.5"
$64.99
Per pack
($0.26/Envelope)
Add to cart
Earn 64 points
Free delivery
JAM Paper 6 x 6 Square Invitation Envelopes, White, 50/Pack (28416I)JAM Paper 6 x 6 Square Invitation Envelopes, White, 50/Pack (28416I)
Quick view
JAM Paper 6 x 6 Square Invitation Envelopes, White, 50/Pack (28416I)
Item #: 901-1588509JAM
(4)
Item #: 901-1588509JAM
Regular white square envelope
Blank interior for personalized message
Envelope Size: 6" x 6"
$30.99
Per pack
($0.62/EACH)
Add to cart
Earn 30 points
Free delivery
LUX® 70lbs. 4 1/8 x 9 1/2 Square Flap Envelopes W/Glue; Natural, 500/BX
Quick view
LUX® 70lbs. 4 1/8" x 9 1/2" Square Flap Envelopes W/Glue; Natural, 500/BX
Item #: 901-385403LUX
Item #: 901-385403LUX
Natural
Size: #10 (4 1/8" x 9 1/2")
Closure: Moistenable glue
$55.19
Per box
($0.11/Envelope)
Add to cart
Earn 55 points
Free delivery
JAM Paper 9 x 9 Square Invitation Envelopes, White, Bulk 250/Box (4232H)JAM Paper 9 x 9 Square Invitation Envelopes, White, Bulk 250/Box (4232H)
Quick view
JAM Paper 9 x 9 Square Invitation Envelopes, White, Bulk 250/Box (4232H)
Item #: 901-1589831JAM
Item #: 901-1589831JAM
Regular white square envelope
Blank interior for personalized message
Envelope Size: 9" x 9"
$94.99
Per pack
($0.38/Envelope)
Add to cart
Earn 94 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
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
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® 80lb 5 1/4x7 1/4 Square Flap Metallic Envelopes W/Peel&Press; Azalea, 1000/BX
Quick view
LUX® 80lb 5 1/4"x7 1/4" Square Flap Metallic Envelopes W/Peel&Press; Azalea, 1000/BX
Item #: 901-515493LUX
Item #: 901-515493LUX
Azalea metallic
Size: A7 (5 1/4"x7 1/4")
Closure: Peel & press
$344.99
Per box
($0.34/Envelope)
Add to cart
Earn 344 points
Free delivery
LUX 5 3/4 x 8 3/4 60lbs. Square Flap Envelopes W/Peel & Press, White/Silver LUX Lining
Quick view
LUX 5 3/4" x 8 3/4" 60lbs. Square Flap Envelopes W/Peel & Press, White/Silver LUX Lining
Item #: 901-282958LUX
(1)
Item #: 901-282958LUX
A9 Foil Lined Invitation Envelopes (5 3/4 x 8 3/4) are perfect for party invites/thank you cards/wedding invites/announcements
Comes in White w/Silver LUX Lining, 60lb. Text Paper
Closure: Peel and press
$25.99
Per pack
($0.52/Envelope)
Add to cart
Earn 25 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
LUX® 70lb 5x5 Square Flap Envelopes W/Peel&Press; Bright White, 500/BX
Quick view
LUX® 70lb 5"x5" Square Flap Envelopes W/Peel&Press; Bright White, 500/BX
Item #: 901-516620LUX
Item #: 901-516620LUX
500/box
Bright white
Size: 5"x5"
$110.49
Per box
($0.22/Envelope)
Add to cart
Earn 110 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
JAM Paper® 7 x 7 Square Invitation Envelopes, White, 100/Pack (28209B)JAM Paper® 7 x 7 Square Invitation Envelopes, White, 100/Pack (28209B)
Quick view
JAM Paper® 7 x 7 Square Invitation Envelopes, White, 100/Pack (28209B)
Item #: 901-261323JAM
Item #: 901-261323JAM
Size: 7" x 7"
Closure: Gum
Opening: Square
$38.99
Per box
($0.39/Envelope)
Add to cart
Earn 38 points
Free delivery
Lux® 5 1/4 x 7 1/4 80lbs. Smooth Square Flap Envelopes W/Peel & Press; Azalea Metallic Pink
Quick view
Lux® 5 1/4" x 7 1/4" 80lbs. Smooth Square Flap Envelopes W/Peel & Press; Azalea Metallic Pink
Item #: 901-282730LUX
Item #: 901-282730LUX
Azalea metallic
Size: A7 (5 1/4" x 7 1/4")
Closure: Peel and press
$26.99
Per pack
($0.54/Envelope)
Add to cart
Earn 26 points
Free delivery
JAM Paper® 7 x 7 Square Invitation Envelopes, White, 50/Pack (28209I)JAM Paper® 7 x 7 Square Invitation Envelopes, White, 50/Pack (28209I)
Quick view
JAM Paper® 7 x 7 Square Invitation Envelopes, White, 50/Pack (28209I)
Item #: 901-1588507JAM
Item #: 901-1588507JAM
Regular white square envelope
Blank interior for personalized message
Envelope Size: 7" x 7"
$27.99
Per pack
($0.56/EACH)
Add to cart
Earn 27 points
Free delivery
JAM Paper 5 x 5 Square Invitation Envelopes, White, 50/Pack (28414I)
Quick view
JAM Paper 5 x 5 Square Invitation Envelopes, White, 50/Pack (28414I)
Item #: 901-1588513JAM
(2)
Item #: 901-1588513JAM
White envelope
Blank interior for personalized message
Envelope Size: 5" x 5"
$34.99
Per pack
($0.70/Envelope)
Add to cart
Earn 34 points
Free delivery
JAM Paper 6 x 6 Kraft Square Invitation Envelopes, Brown Kraft Paper Bag, 25/Pack (LEKR502)
Quick view
JAM Paper 6 x 6 Kraft Square Invitation Envelopes, Brown Kraft Paper Bag, 25/Pack (LEKR502)
Item #: 901-261533JAM
Item #: 901-261533JAM
Size: 6" x 6"
Closure: Gum
Opening: Square
$30.99
Per pack
($1.24/Envelope)
Add to cart
Earn 30 points
Free delivery
JAM Paper 3.125 x 3.125 Kraft Square Recycled Invitation Envelopes, Brown Kraft Paper Bag, 50/Pack (52797687i)JAM Paper 3.125 x 3.125 Kraft Square Recycled Invitation Envelopes, Brown Kraft Paper Bag, 50/Pack (52797687i)
Quick view
JAM Paper 3.125 x 3.125 Kraft Square Recycled Invitation Envelopes, Brown Kraft Paper Bag, 50/Pack (52797687i)
Item #: 901-2478070
(1)
Item #: 901-2478070
Quantity: 50 envelopes per pack
Brown Kraft Envelope
Size: Small Square (3.125 x 3.125 inches)
$27.99
Per pack
($0.56/Envelope)
Add to cart
Earn 27 points
Free delivery
LUX® 80lb 4 3/4x6 1/2 Square Flap Envelopes W/Peel&Press; Midnight Black, 500/BX
Quick view
LUX® 80lb 4 3/4"x6 1/2" Square Flap Envelopes W/Peel&Press; Midnight Black, 500/BX
Item #: 901-514106LUX
Item #: 901-514106LUX
Midnight black
Size: A6 (4 3/4"x6 1/2")
Closure: Peel & press
$78.99
Per box
($0.16/Envelope)
Add to cart
Earn 78 points
Free delivery
JAM Paper 10 x 10 Large Square Invitation Envelopes, White, 25/Pack (3992319)JAM Paper 10 x 10 Large Square Invitation Envelopes, White, 25/Pack (3992319)
Quick view
JAM Paper 10 x 10 Large Square Invitation Envelopes, White, 25/Pack (3992319)
Item #: 901-261308JAM
Item #: 901-261308JAM
Size: 10" x 10"
Closure: Gum
Opening: Square
$24.99
Per pack
($1.00/Envelope)
Add to cart
Earn 24 points
Free delivery w/ $25+
Lux® 4 3/4 x 6 1/2 80lbs. Square Flap Envelopes W/Peel & Press; Midnight Black, 50/Pk
Quick view
Lux® 4 3/4" x 6 1/2" 80lbs. Square Flap Envelopes W/Peel & Press; Midnight Black, 50/Pk
Item #: 901-282632LUX
Item #: 901-282632LUX
Midnight black
Size: A6 (4 3/4" x 6 1/2")
Closure: Peel and press
$13.99
Per pack
($0.28/Envelope)
Add to cart
Earn 13 points
Free delivery w/ $25+
JAM Paper Square Envelopes, Peel & Press, 3 1/4 x 3 1/4, Sunflower Yellow, 50 Pack (8503-84-50)
Quick view
JAM Paper Square Envelopes, Peel & Press, 3 1/4 x 3 1/4, Sunflower Yellow, 50 Pack (8503-84-50)
Item #: 901-24578415
Item #: 901-24578415
Square Envelopes
3.25" x 3.25"
Yellow
$18.19
Per pack
($0.36/Envelope)
Add to cart
Earn 18 points
Free delivery w/ $25+
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