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White and Colored Square Envelopes

Square envelopes are all about symmetry and balance, and each of the styles available is highly appealing to the eye. Choose a size from miniature 3 1/4" Square Envelopes to calendar sized 12 1/2" Square Envelopes. Most styles have square flaps, but a few have deep triangular contour flaps that nicely offset the Square Envelope. Select from several weights, sizes and a rainbow of colors, including some metallic square envelopes for an especially elegant touch. Keep in mind that when mailing square envelopes through the USPS, you will need additional postage because of the shape.

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Square Envelope Product Types

It's hip to be square, especially in terms of announcements, greeting cards, invitations, and marketing messages. If you are looking for affordable square envelopes to complement your square-shaped stationery or inserts, you have come to the right place. Envelopes.com offers a wide selection of square envelope sizes and hundreds of colors to choose from. Square flap envelopes are styled with an elegant and distinctive square flap on the back, lending to a sophisticated look that is sure to leave a lasting impression. With an array of colors and textures at the ready, finding the best solution for your mailing needs is easier than ever before. Colored Square Envelopes for Every Special Occasion Planning a New Year's Eve party? Set the tone for this unforgettable bash and dazzle your guests by choosing metallic envelopes. We offer a wide range of metallics to choose from, including blonde, champagne, crystal, gold, silver, quartz, and more. A metallic envelope will give your guests the impression of all the glitz to expect at your elegant celebration. We also offer a myriad of bright and beautiful reds to complement your holiday greeting cards or invitations to a festive occasion. If you are in the midst of planning a baby shower, you can never go wrong with colored square envelopes. We offer a handful of pretty pinks and purples for baby girls as well as blues and greens for baby boys. Envisioning more of a gender-neutral event? You will find an endless amount of vibrant oranges and yellows to suit your needs. Square envelopes white and black are ideal for black-tie affairs, such as corporate events, retirement parties, weddings, and much more. Our selection features bright white envelopes in a wide range of paper weights. You will also find a variety of clear translucent envelopes made of pure cellulose fiber without the use of resins or other transparentizing agents. These recyclable, acid-free, and chlorine-free envelopes are ideal for invitations that are just too stylish to hide. If sustainability is at the heart of your event, our 100% recycled envelopes provide an eco-friendly alternative. Use Our Ready-Made Templates or Start from Scratch By choosing us as your go-to destination for envelopes, you get total creative freedom over your project from start to finish. You can select one of our pre-designed templates and customize the text, fonts, colors, and placement. You can even add your own artwork or images to any design in our selection. If you are customizing envelopes for a corporate event, you can help your business stand out by adding a brand logo or unique image. Using our online design tool, you can upload images in the following formats: PDF, EPS, PSD, PNG, JPG, AI, and TIFF. Whether you are looking for something different or something that's simply stylish, we have all your needs covered. At your request, we will also add return addresses and reply addresses. Many of the square invitation styles in this selection feature square flaps, but a few feature deep triangular contour flaps that nicely offset the classic square shape. Square envelopes are all about symmetry and balance. We make it as easy as possible to find affordable envelopes that don't cut corners on quality. Please keep in mind that when mailing square-shaped envelopes through the USPS, you may need additional postage. Our square envelope sizes range from miniature (3 1/4) to calendar size (12 1/2). Please feel free to contact us if you have any questions or concerns while shopping with us today.

Free Shipping on Orders of 299 or More
* (1) Merchandise total must equal 299 or more before applicable taxes and ship to one address within the 48 contiguous United States. (2) MUST SELECT "STANDARD SHIPPING" as your shipping method BEFORE entering the code. (3) Enter the coupon code FREE299. Offer not valid for Alaska, Hawaii, United States Territories or International destinations. Offer is not redeemable on previous orders and cannot be combined with promotional coupon codes. Offer CAN be used in conjunction with Loyalty, Trade Pro and Non-Profit Discount Program. Offer not valid on phone orders. Terms of offer are subject to change at any time.
$5 OFF Orders Over $50
*Merchandise total must equal $50.00 or more before applicable taxes. To be eligible, customers must enter the coupon code TAKEFIVE at checkout. Offer is not redeemable on previous orders and cannot be combined with promotional coupon codes. Offer CANNOT be used in conjunction with Loyalty, Trade Pro and Non-Profit Discount Program. Offer not valid on phone orders. Terms of offer are subject to change at any time.
To get the discount:
* (1) Merchandise total must equal $299 or more before applicable taxes and ship to one address within the 48 contiguous United States. (2) MUST SELECT "STANDARD SHIPPING" as your shipping method BEFORE entering the code. (3) Enter the coupon code FREE299. Offer not valid for Alaska, Hawaii, United States Territories or International destinations. Offer is not redeemable on previous orders and cannot be combined with promotional coupon codes. Offer CAN be used in conjunction with Loyalty, Trade Pro and Non-Profit Discount Program. Offer not valid on phone orders. Terms of offer are subject to change at any time.
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To get the discount:
* (1) Merchandise total must equal $299 or more before applicable taxes and ship to one address within the 48 contiguous United States. (2) MUST SELECT "STANDARD SHIPPING" as your shipping method BEFORE entering the code. (3) Enter the coupon code FREE299. Offer not valid for Alaska, Hawaii, United States Territories or International destinations. Offer is not redeemable on previous orders and cannot be combined with promotional coupon codes. Offer CAN be used in conjunction with Loyalty, Trade Pro and Non-Profit Discount Program. Offer not valid on phone orders. Terms of offer are subject to change at any time.
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To get the discount:
This offer must be redeemed and orders placed by November 29, 2019. To be eligible, customers must enter the coupon code BF2019 at checkout. This offer CAN NOT be used in conjunction with FREE299, Trade Pro or Non-Profit Discount Program. Offer is NOT redeemable on previous orders and CAN NOT be applied to Sale/Clearance Items. This offer CAN NOT be combined with other promotional coupon codes. Terms of offer are subject to change at any time.
To get the discount:
This offer must be redeemed and orders placed on Dec. 2, 2019. To be eligible, customers must enter the coupon code CYBER2019 at checkout. This offer CAN NOT be used in conjunction with FREE299, Trade Pro or Non-Profit Discount Program. Offer is NOT redeemable on previous orders and CAN NOT be applied to Sale/Clearance Items. This offer CAN NOT be combined with other promotional coupon codes. Terms of offer are subject to change at any time.
To get the discount:
This offer must be redeemed and orders placed by Dec. 6, 2019 (11:59 PM EST). To be eligible, customers must enter the coupon code CYBERX19 at checkout. This offer CAN NOT be used in conjunction with FREE299, Trade Pro or Non-Profit Discount Program. Offer is NOT redeemable on previous orders and CAN NOT be applied to Sale/Clearance Items. This offer CAN NOT be combined with other promotional coupon codes. Terms of offer are subject to change at any time.
To get the discount:
This offer must be redeemed and orders placed by Dec. 9, 2019 (11:59 PM EST). To be eligible, customers must enter the coupon code GREEN19 at checkout. This offer CAN NOT be used in conjunction with FREE299, Trade Pro or Non-Profit Discount Program. Offer is NOT redeemable on previous orders and CAN NOT be applied to Sale/Clearance Items. This offer CAN NOT be combined with other promotional coupon codes. Terms of offer are subject to change at any time.
To get the discount:
This offer must be redeemed and orders placed by Dec. 17, 2019 (11:59 PM EST). To be eligible, customers must enter the coupon code CMR2019 at checkout. This offer CAN NOT be used in conjunction with FREE299, Trade Pro or Non-Profit Discount Program. Offer is NOT redeemable on previous orders and CAN NOT be applied to Sale/Clearance Items. This offer CAN NOT be combined with other promotional coupon codes. Terms of offer are subject to change at any time.
To get the discount:
This offer must be redeemed and orders placed by Dec. 31, 2019 (11:59 PM EST). To be eligible, customers must enter the coupon code BYE2019 at checkout. This offer CAN NOT be used in conjunction with FREE299, Trade Pro or Non-Profit Discount Program. Offer is NOT redeemable on previous orders and CAN NOT be applied to Sale/Clearance items or Holiday Clearance items. This offer CAN NOT be combined with other promotional coupon codes. Terms of offer are subject to change at any time. All Holiday Clearance prices are as marked - no code required.
Order Type Date of Order Approved (By 3PM EST) Production Method Shipping Method
Custom Printed Orders
December 9th Standard Standard
December 11th Rush Standard
December 17th Rush Premium
Plain Orders December 20th Rush Next Day
Limited Time! 15% Off Recipient Addressing.
Not ready to upload your address list? Order now and upload your list later! Use code EARLYBIRD15 at checkout. You will receive an email confirmation with instructions on how you can upload your list at any time. You can also access your order at any time from your account page.
* Offer valid October 24, 2017 through November 3, 2017 and cannot be combined with any other offer.
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Merchandise total must equal $250 or more before applicable taxes and order must be placed between 10/28/19 and 10/29/19. Offer is not redeemable on previous orders and cannot be combined with promotional coupon codes. Offer CANNOT be used in conjunction with Loyalty, Trade Pro and Non-Profit Discount Program. Offer not valid on phone orders. Terms of offer are subject to change at any time.

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