Skip to main content Skip to footer
Flexible Net 30 payment terms
Business User? Get customized solutions
Save 5% with Rewards+
Rep photo Get expert
service now
Shop all
Welcome, sign in
Create account Orders
Upgrade to Rewards+
Rewards & coupons
Hot Deals Quill's House Brands
Track an order
Shared cart
Reward not redeemed
You dont have enough points to redeem this reward.
Shopping list
Alternative Items
Add a protection plan


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

Shop Square Envelopes

   (288 Products)
Filter by:
Clear
JAM Paper (148)
LUX (140)
Clear
White (121)
Clear (20)
Red (15)
Gold (7)
Brown (18)
Gray/Silver (13)
Beige (11)
Blue (11)
Pink (9)
Black (22)
Green (8)
Yellow (8)
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" (12)
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" (12)
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 (103)
Go
$0 - $10 (3)
$10 - $20 (55)
$20 - $30 (48)
$30 - $40 (26)
$40 - $50 (27)
$50 - $60 (15)
$60 - $70 (11)
$70 - $80 (16)
$80 - $90 (10)
$90 - $100 (7)
$100 - $150 (33)
$150 - $200 (18)
$200 - $300 (13)
$300 - $400 (3)
$400 - $500 (1)
$750 - $1000 (2)
Clear
50 Per Pack (91)
500 Per Pack (59)
25 Per Pack (47)
250 Per Pack (38)
1000 Per Pack (28)
100 Per Pack (17)
All filters
Sort by:
Best matchPrice: High-LowPrice: Low-HighRating: High-Low
All filters 288 items found
Lux® 4 3/8 x 5 3/4 70lbs. Lined Envelopes W/Peel & Press; Natural/Gold LUX Lining
Quick view
Lux® 4 3/8" x 5 3/4" 70lbs. Lined Envelopes W/Peel & Press; Natural/Gold LUX Lining
Item #:901-282480LUX
$23.29
Per pack
($0.47/Envelope)
Earn 23 points
Free delivery w/ $25+
Add
LUX 5 x 5 Square Envelopes, 50/Box, White Linen (8505-WLI-50)
Quick view
LUX 5 x 5 Square Envelopes, 50/Box, White Linen (8505-WLI-50)
Item #:901-282170LUX
5
(2)
$22.29
Per pack
($0.45/Envelope)
Earn 22 points
Free delivery w/ $25+
Add
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
5
(4)
$30.99
Per pack
($0.62/EACH)
Earn 30 points
Free delivery
Add
JAM Paper 2.375 x 2.375 Mini Square Envelopes, White, 25/Pack (203642)JAM Paper 2.375 x 2.375 Mini Square Envelopes, White, 25/Pack (203642)
Quick view
JAM Paper 2.375 x 2.375 Mini Square Envelopes, White, 25/Pack (203642)
Item #:901-262661JAM
5
(1)
$7.99
Per pack
($0.32/Envelope)
Earn 7 points
Free delivery w/ $25+
Add
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
$14.99
Per pack
($0.30/Envelope)
Earn 14 points
Free delivery w/ $25+
Add
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
$29.99
Per pack
($0.60/Envelope)
Earn 29 points
Free delivery
Add
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
5
(1)
$100.29
Per pack
($2.01/Envelope)
Earn 100 points
Free delivery
Add
JAM Paper 7.5 x 7.5 Square Invitation Envelopes, Presidential Blue, 25/Pack (263913007)JAM Paper 7.5 x 7.5 Square Invitation Envelopes, Presidential Blue, 25/Pack (263913007)
Quick view
JAM Paper 7.5 x 7.5 Square Invitation Envelopes, Presidential Blue, 25/Pack (263913007)
Item #:901-2632932
$30.99
Per pack
($1.24/Envelope)
Earn 30 points
Free delivery
Add
JAM Paper® 7.5 x 7.5 Square Invitation Envelopes, White, 50/Pack (28210I)JAM Paper® 7.5 x 7.5 Square Invitation Envelopes, White, 50/Pack (28210I)
Quick view
JAM Paper® 7.5 x 7.5 Square Invitation Envelopes, White, 50/Pack (28210I)
Item #:901-1588506JAM
$39.99
Per pack
($0.80/Envelope)
Earn 39 points
Free delivery
Add
JAM Paper 8.5 x 8.5 Square Invitation Envelopes, White, 25/Pack (4231)JAM Paper 8.5 x 8.5 Square Invitation Envelopes, White, 25/Pack (4231)
Quick view
JAM Paper 8.5 x 8.5 Square Invitation Envelopes, White, 25/Pack (4231)
Item #:901-263922JAM
5
(1)
$18.99
Per pack
($0.76/Envelope)
Earn 18 points
Free delivery w/ $25+
Add
JAM Paper 8.5 x 8.5 Square Invitation Envelopes, White, 50/Pack (4231I)JAM Paper 8.5 x 8.5 Square Invitation Envelopes, White, 50/Pack (4231I)
Quick view
JAM Paper 8.5 x 8.5 Square Invitation Envelopes, White, 50/Pack (4231I)
Item #:901-1588502JAM
$27.99
Per pack
($0.56/Envelope)
Earn 27 points
Free delivery
Add
JAM Paper® 5 x 5 Square Envelopes, Clear Translucent Vellum, 50/pack (31032I)JAM Paper® 5 x 5 Square Envelopes, Clear Translucent Vellum, 50/pack (31032I)
Quick view
JAM Paper® 5 x 5 Square Envelopes, Clear Translucent Vellum, 50/pack (31032I)
Item #:901-1589078JAM
$49.99
Per pack
($1.00/EACH)
Earn 49 points
Free delivery
Add
LUX 5 3/4 x 8 3/4 60lbs. Square Flap Envelopes W/Glue, Holiday Red, 50/Pack
Quick view
LUX 5 3/4" x 8 3/4" 60lbs. Square Flap Envelopes W/Glue, Holiday Red, 50/Pack
Item #:901-282923LUX
5
(2)
$13.49
Per pack
($0.27/EACH)
Earn 13 points
Free delivery w/ $25+
Add
Lux® 5 1/2 x 5 1/2 70lbs. Square Flap Envelopes W/Peel & Press; Smoke Gray, 50/Pk
Quick view
Lux® 5 1/2" x 5 1/2" 70lbs. Square Flap Envelopes W/Peel & Press; Smoke Gray, 50/Pk
Item #:901-282130LUX
$18.59
Per pack
($0.37/Envelope)
Earn 18 points
Free delivery w/ $25+
Add
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
$12.79
Per pack
($0.26/Envelope)
Earn 12 points
Free delivery w/ $25+
Add
LUX® 80lb 4 3/4x6 1/2 Square Flap Metallic Envelopes W/Peel&Press; Gold, 500/BX
Quick view
LUX® 80lb 4 3/4"x6 1/2" Square Flap Metallic Envelopes W/Peel&Press; Gold, 500/BX
Item #:901-515761LUX
$109.69
Per box
($0.22/Envelope)
Earn 109 points
Free delivery
Add
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
$156.89
Per box
($0.16/Envelope)
Earn 156 points
Free delivery
Add
JAM Paper 2.375 x 2.375 Mini Square Envelopes, White, 25/Pack (3993004)
Quick view
JAM Paper 2.375 x 2.375 Mini Square Envelopes, White, 25/Pack (3993004)
Item #:901-261293JAM
$11.79
Per pack
($0.47/Envelope)
Earn 11 points
Free delivery w/ $25+
Add
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
$90.99
Per pack
($0.36/Envelope)
Earn 90 points
Free delivery
Add
LUX® 80lb 4 3/8x5 3/4 Square Flap Metallic Envelopes W/Peel&Press; Gold, 500/BX
Quick view
LUX® 80lb 4 3/8"x5 3/4" Square Flap Metallic Envelopes W/Peel&Press; Gold, 500/BX
Item #:901-515792LUX
$96.49
Per box
($0.19/Envelope)
Earn 96 points
Free delivery
Add
JAM Paper 6 x 6 Square Envelopes, Peel & Press, Ruby Red, 50/Pack (8525-18-50)JAM Paper 6 x 6 Square Envelopes, Peel & Press, Ruby Red, 50/Pack (8525-18-50)
Quick view
JAM Paper 6 x 6 Square Envelopes, Peel & Press, Ruby Red, 50/Pack (8525-18-50)
Item #:901-24578455
$14.99
Per pack
($0.30/Envelope)
Earn 14 points
Free delivery w/ $25+
Add
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
$179.89
Per box
($0.36/Envelope)
Earn 179 points
Free delivery
Add
JAM Paper Square Envelopes, Peel & Press, Seafoam Green, 3 1/4 x 3 1/4, 50 Pack (8503-113-50)
Quick view
JAM Paper Square Envelopes, Peel & Press, Seafoam Green, 3 1/4 x 3 1/4, 50 Pack (8503-113-50)
Item #:901-24578481
$13.99
Per pack
($0.28/Envelope)
Earn 13 points
Free delivery w/ $25+
Add
LUX 70lb 4 1/8x9 1/2 Square Flap Linen Envelopes, White, 500/BX
Quick view
LUX 70lb 4 1/8"x9 1/2" Square Flap Linen Envelopes, White, 500/BX
Item #:901-513618LUX
$119.09
Per box
($0.24/Envelope)
Earn 119 points
Free delivery
Add
1 23 ... 12
Displaying 1-24 of 288
house icon

Quill's House Brands

Business essentials you trust, savings you'll love.

Shop Quill brand Shop Coastwide brand Shop Pick Me Up brand Shop Perk brand Shop Staples brand Shop Staples tech Shop Union & Scale brand Shop Workplace 2.0 brand

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
$43.99 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
Associated requestors