Skip to main content Skip to footer
Save more on your next order with Rewards+
How Rewards Work
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

   (289 Products)
Filter by:
Clear
JAM Paper (148)
LUX (141)
Clear
White (122)
Black (22)
Clear (20)
Brown (18)
Gray/Silver (13)
Gold (7)
Red (15)
Blue (11)
Green (8)
Natural Kraft (1)
Beige (11)
Pink (9)
Yellow (8)
Ivory (2)
Purple (2)
Metallic (1)
Multicolor (1)
Natural (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" (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 (4)
$10 - $20 (59)
$20 - $30 (47)
$30 - $40 (25)
$40 - $50 (25)
$50 - $60 (15)
$60 - $70 (14)
$70 - $80 (14)
$80 - $90 (9)
$90 - $100 (8)
$100 - $150 (35)
$150 - $200 (16)
$200 - $300 (12)
$300 - $400 (3)
$400 - $500 (1)
$750 - $1000 (2)
Clear
500 Per Pack (60)
50 Per Pack (91)
25 Per Pack (47)
100 Per Pack (17)
250 Per Pack (38)
1000 Per Pack (28)
All filters
Sort by:
Best matchPrice: High-LowPrice: Low-HighRating: High-Low
All filters 289 items found
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
$69.09
Per box
($0.14/Envelope)
Earn 69 points
Free delivery
Add
LUX® 28lb 5x5 Square Flap Envelopes w/ Peel & Press, Bright White, 500/Box (10894-500)
Quick view
LUX® 28lb 5"x5" Square Flap Envelopes w/ Peel & Press, Bright White, 500/Box (10894-500)
Item #:901-516620LUX
1
(1)
$72.99
Per box
($0.15/Envelope)
Earn 72 points
Free delivery
Add
JAM Paper 13.5 x 13.5 Large Square Invitation Envelopes, White, Bulk 1000/Carton (03992323C)JAM Paper 13.5 x 13.5 Large Square Invitation Envelopes, White, Bulk 1000/Carton (03992323C)
Quick view
JAM Paper 13.5 x 13.5 Large Square Invitation Envelopes, White, Bulk 1000/Carton (03992323C)
Item #:901-261353JAM
$871.99
Per carton
($0.87/Envelope)
Earn 871 points
Heavy item fee
Add
LUX Self Seal Square Envelope, 8 x 8, Gold Metallic, 50/Box (8565-07-50)
Quick view
LUX Self Seal Square Envelope, 8" x 8", Gold Metallic, 50/Box (8565-07-50)
Item #:901-1985073LUX
$30.79
Per box
($0.62/Envelope)
Earn 30 points
Free delivery
Add
LUX® 70lb5 1/4x7 1/4 Square Flap Envelopes W/Peel&Press; Natural W/Gold LUX, 500/BX
Quick view
LUX® 70lb5 1/4"x7 1/4" Square Flap Envelopes W/Peel&Press; Natural W/Gold LUX, 500/BX
Item #:901-513907LUX
$107.49
Per box
($0.21/Envelope)
Earn 107 points
Free delivery
Add
JAM Paper 7 1/2 x 7 1/2 Square Envelopes, Ruby Red, 50 Pack (EX8555-18-50)
Quick view
JAM Paper 7 1/2 x 7 1/2 Square Envelopes, Ruby Red, 50 Pack (EX8555-18-50)
Item #:901-24578461
$14.99
Per pack
($0.30/Envelope)
Earn 14 points
Free delivery w/ $25+
Add
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
5
(1)
$72.59
Per box
($0.73/Envelope)
Earn 72 points
Free delivery
Add
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
$47.99
Per pack
($0.96/Envelope)
Earn 47 points
Free delivery
Add
JAM Paper® 5 x 5 Square Invitation Envelopes, White, 100/Pack (28414B)JAM Paper® 5 x 5 Square Invitation Envelopes, White, 100/Pack (28414B)
Quick view
JAM Paper® 5 x 5 Square Invitation Envelopes, White, 100/Pack (28414B)
Item #:901-261317JAM
3
(2)
$46.99
Per box
($0.47/Envelope)
Earn 46 points
Free delivery
Add
LUX 5 x 5 Square Envelopes, 50/Box, Navy (LUX-8505-103-50)
Quick view
LUX 5 x 5 Square Envelopes, 50/Box, Navy (LUX-8505-103-50)
Item #:901-282165LUX
$13.99
Per pack
($0.28/Envelope)
Earn 13 points
Free delivery w/ $25+
Add
JAM Paper 7 1/2 x 7 1/2 Square Envelopes ,Midnight Black, 500 Pack, Black (F-8555-B-500)JAM Paper 7 1/2 x 7 1/2 Square Envelopes ,Midnight Black, 500 Pack, Black (F-8555-B-500)
Quick view
JAM Paper 7 1/2 x 7 1/2 Square Envelopes ,Midnight Black, 500 Pack, Black (F-8555-B-500)
Item #:901-24578625
$224.99
Per pack
($0.45/Envelope)
Earn 224 points
Free delivery
Add
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
$43.99
Per box
($0.44/Envelope)
Earn 43 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
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
$179.89
Per box
($0.36/Envelope)
Earn 179 points
Free delivery
Add
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
$182.09
Per box
($0.36/Envelope)
Earn 182 points
Free delivery
Add
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
$78.99
Per pack
($0.16/Envelope)
Earn 78 points
Free delivery
Add
JAM Paper 5.5 x 5.5 Square Invitation Envelopes, White, Bulk 250/Box (28415H)JAM Paper 5.5 x 5.5 Square Invitation Envelopes, White, Bulk 250/Box (28415H)
Quick view
JAM Paper 5.5 x 5.5 Square Invitation Envelopes, White, Bulk 250/Box (28415H)
Item #:901-1589847JAM
5
(1)
$120.99
Per pack
($0.48/Envelope)
Earn 120 points
Free delivery
Add
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
$64.69
Per box
($0.13/Envelope)
Earn 64 points
Free delivery
Add
JAM Paper 6.5 x 6.5 Square Metallic Invitation Envelopes, Stardream Silver, 25/Pack (GCST509)JAM Paper 6.5 x 6.5 Square Metallic Invitation Envelopes, Stardream Silver, 25/Pack (GCST509)
Quick view
JAM Paper 6.5 x 6.5 Square Metallic Invitation Envelopes, Stardream Silver, 25/Pack (GCST509)
Item #:901-261996JAM
$33.99
Per pack
($1.36/Envelope)
Earn 33 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
$149.99
Per box
($0.15/Envelope)
Earn 149 points
Free delivery
Add
JAM Paper 6 x 6 Square Foil Lined Invitation Envelopes, White with Silver Foil, 25/Pack (3244688)JAM Paper 6 x 6 Square Foil Lined Invitation Envelopes, White with Silver Foil, 25/Pack (3244688)
Quick view
JAM Paper 6 x 6 Square Foil Lined Invitation Envelopes, White with Silver Foil, 25/Pack (3244688)
Item #:901-262778JAM
$14.99
Per pack
($0.60/Envelope)
Earn 14 points
Free delivery w/ $25+
Add
LUX® 80lb 5 3/4x8 3/4 Square Flap Metallic Envelopes W/Peel&Press; Gold, 500/BX
Quick view
LUX® 80lb 5 3/4"x8 3/4" Square Flap Metallic Envelopes W/Peel&Press; Gold, 500/BX
Item #:901-514889LUX
$179.89
Per box
($0.36/Envelope)
Earn 179 points
Free delivery
Add
JAM Paper Square Envelopes, Peel & Press, 70lb Avocado Green, 6 1/4 x 6 1/4, 500 Pack (8530-102-500)
Quick view
JAM Paper Square Envelopes, Peel & Press, 70lb Avocado Green, 6 1/4 x 6 1/4, 500 Pack (8530-102-500)
Item #:901-24578453
$78.99
Per pack
($0.16/Envelope)
Earn 78 points
Free delivery
Add
JAM Paper Square Envelopes, Peel & Press, 100lb Citrus Yellow, 6 1/4 x 6 1/4, 250 Pack, (8530-L20-250)
Quick view
JAM Paper Square Envelopes, Peel & Press, 100lb Citrus Yellow, 6 1/4 x 6 1/4, 250 Pack, (8530-L20-250)
Item #:901-24578540
$49.99
Per pack
($0.20/Envelope)
Earn 49 points
Free delivery
Add
1 23 ... 13
Displaying 1-24 of 289
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