Skip to main content Skip to footer
Shop our full range of education supplies.
$10 off when you spend $100
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

   (290 Products)
Filter by:
Clear
JAM Paper (150)
LUX (140)
Clear
White (121)
Black (23)
Green (8)
Clear (21)
Red (15)
Gray/Silver (13)
Blue (11)
Ivory (2)
Brown (18)
Beige (11)
Pink (9)
Yellow (8)
Gold (7)
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" (20)
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 (104)
Go
$0 - $10 (4)
$10 - $20 (59)
$20 - $30 (48)
$30 - $40 (26)
$40 - $50 (25)
$50 - $60 (15)
$60 - $70 (14)
$70 - $80 (14)
$80 - $90 (9)
$90 - $100 (8)
$100 - $150 (34)
$150 - $200 (16)
$200 - $300 (12)
$300 - $400 (3)
$400 - $500 (1)
$750 - $1000 (2)
Clear
50 Per Pack (91)
500 Per Pack (59)
25 Per Pack (49)
1000 Per Pack (28)
250 Per Pack (38)
100 Per Pack (17)
All filters
Sort by:
Best matchPrice: High-LowPrice: Low-HighRating: High-Low
All filters 290 items found
JAM Paper 7 1/2 x 7 1/2 Square Envelopes, Ruby Red, 500 Pack (EX8555-18-500)
Quick view
JAM Paper 7 1/2 x 7 1/2 Square Envelopes, Ruby Red, 500 Pack (EX8555-18-500)
Item #:901-24578463
$282.99
Per pack
($0.57/Envelope)
Earn 282 points
Free delivery
Add
JAM Paper 9 x 9 Square Invitation Envelopes, White, Bulk 1000/Carton (4232C)JAM Paper 9 x 9 Square Invitation Envelopes, White, Bulk 1000/Carton (4232C)
Quick view
JAM Paper 9 x 9 Square Invitation Envelopes, White, Bulk 1000/Carton (4232C)
Item #:901-261347JAM
5
(1)
$273.99
Per carton
($0.27/Envelope)
Earn 273 points
Free delivery
Add
LUX® 80lb 4 1/4x6 1/4 Square Flap LUX Envelopes W/Peel&Press; Smoke Gray, 500/BX
Quick view
LUX® 80lb 4 1/4"x6 1/4" Square Flap LUX Envelopes W/Peel&Press; Smoke Gray, 500/BX
Item #:901-513678LUX
$96.49
Per box
($0.19/Envelope)
Earn 96 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)
$95.59
Per pack
($1.91/Envelope)
Earn 95 points
Free delivery
Add
JAM Paper 7.5 x 7.5 Square Invitation Envelopes, Ivory, 25/Pack (2792288)
Quick view
JAM Paper 7.5 x 7.5 Square Invitation Envelopes, Ivory, 25/Pack (2792288)
Item #:901-24295160
$23.99
Per pack
($0.96/Envelope)
Earn 23 points
Free delivery w/ $25+
Add
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
$16.99
Per pack
($0.34/Envelope)
Earn 16 points
Free delivery w/ $25+
Add
Lux® 5 1/4 x 7 1/4 60lbs. Lined Envelopes W/Peel & Press; White/Silver LUX Lining
Quick view
Lux® 5 1/4" x 7 1/4" 60lbs. Lined Envelopes W/Peel & Press; White/Silver LUX Lining
Item #:901-282847LUX
$19.09
Per pack
($0.38/Envelope)
Earn 19 points
Free delivery w/ $25+
Add
LUX® 80lb 4 1/8x9 1/2 Square Flap Envelopes; Crystal Metallic, 1000/BX
Quick view
LUX® 80lb 4 1/8"x9 1/2" Square Flap Envelopes; Crystal Metallic, 1000/BX
Item #:901-516460LUX
$244.59
Per box
($0.24/Envelope)
Earn 244 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
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
$85.99
Per box
($0.17/Envelope)
Earn 85 points
Free delivery
Add
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
$15.89
Per pack
($0.32/Envelope)
Earn 15 points
Free delivery w/ $25+
Add
JAM Paper Square Envelopes, Peel & Press, Seafoam, 3 1/4 x 3 1/4, 250 Pack (8503-113-250)
Quick view
JAM Paper Square Envelopes, Peel & Press, Seafoam, 3 1/4 x 3 1/4, 250 Pack (8503-113-250)
Item #:901-24578557
$42.99
Per pack
($0.17/Envelope)
Earn 42 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, 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
$25.99
Per pack
($1.04/Envelope)
Earn 25 points
Free delivery
Add
JAM Paper 9 x 9 Square Invitation Envelopes, Black Linen, 25/Pack (V01215)JAM Paper 9 x 9 Square Invitation Envelopes, Black Linen, 25/Pack (V01215)
Quick view
JAM Paper 9 x 9 Square Invitation Envelopes, Black Linen, 25/Pack (V01215)
Item #:901-261581JAM
$25.99
Per pack
($1.04/Envelope)
Earn 25 points
Free delivery
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® 5 3/4 x 8 3/4 80lbs. Square Flap Envelopes W/Peel & Press; Navy Blue, 50/Pk
Quick view
Lux® 5 3/4" x 8 3/4" 80lbs. Square Flap Envelopes W/Peel & Press; Navy Blue, 50/Pk
Item #:901-282937LUX
$20.99
Per pack
($0.42/Envelope)
Earn 20 points
Free delivery w/ $25+
Add
JAM PAPER 7.5 x 7.5 Square Invitation Envelopes, Ivory, 100/Pack (23131971)JAM PAPER 7.5 x 7.5 Square Invitation Envelopes, Ivory, 100/Pack (23131971)
Quick view
JAM PAPER 7.5 x 7.5 Square Invitation Envelopes, Ivory, 100/Pack (23131971)
Item #:901-24295249
$52.99
Per pack
($0.05/Envelope)
Earn 52990 points
Free delivery
Add
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
$104.19
Per box
($0.21/Envelope)
Earn 104 points
Free delivery
Add
JAM Paper 5.5 x 5.5 Square Invitation Envelopes, White, 50/Pack (28415I)JAM Paper 5.5 x 5.5 Square Invitation Envelopes, White, 50/Pack (28415I)
Quick view
JAM Paper 5.5 x 5.5 Square Invitation Envelopes, White, 50/Pack (28415I)
Item #:901-1588512JAM
3
(2)
$27.99
Per pack
($0.56/Envelope)
Earn 27 points
Free delivery
Add
JAM Paper 4.5 x 4.5 Square Invitation Envelopes, White, 25/Pack (439911145)JAM Paper 4.5 x 4.5 Square Invitation Envelopes, White, 25/Pack (439911145)
Quick view
JAM Paper 4.5 x 4.5 Square Invitation Envelopes, White, 25/Pack (439911145)
Item #:901-261295JAM
5
(2)
$9.59
Per pack
($0.38/Envelope)
Earn 9 points
Free delivery w/ $25+
Add
JAM Paper 6 x 6 Square Colored Invitation Envelopes, Green Recycled, 25/Pack (2792267)JAM Paper 6 x 6 Square Colored Invitation Envelopes, Green Recycled, 25/Pack (2792267)
Quick view
JAM Paper 6 x 6 Square Colored Invitation Envelopes, Green Recycled, 25/Pack (2792267)
Item #:901-261276JAM
$25.99
Per pack
($1.04/Envelope)
Earn 25 points
Free delivery
Add
JAM Paper 3.125 x 3.125 Mini Square Envelopes, White, 50/Pack (201229I)JAM Paper 3.125 x 3.125 Mini Square Envelopes, White, 50/Pack (201229I)
Quick view
JAM Paper 3.125 x 3.125 Mini Square Envelopes, White, 50/Pack (201229I)
Item #:901-1588443JAM
5
(1)
$13.99
Per pack
($0.28/Envelope)
Earn 13 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
1 23 ... 13
Displaying 1-24 of 290
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