13 x 13 Envelopes

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JAM Paper 13 1/2 Square Invitation Envelope, 13 1/2" x 13 1/2", White, 50/Pack (3992323I) image 1
Item: 1588468
Model: 3992323I

Don’t let the name fool you, these are anything but regular. But square, well we can’t say no to that. And we don’t think it’s a bad adjective anyway. Actually, we never figured out why being ‘square’ is such a bad thing. Especially when it involves envelopes. So embrace your inner nerd (or ‘square’ personality) by picking up one of these! Square envelopes are inherently unique, especially looking at them next to that simple, standard envelope. So when you want to stand out, go for our square envelopes and make that square factor become back in style. Because rectangles are SO last year. And the pure, white color will match any kind of announcement, greeting card, and all of those hard to fit invitations. Whether you want to compliment your ivory invite or contradict that black invite, the white will match! Available in over 15 sizes so that every occasion is accounted for..Blank interior for personalized message.Smooth paper finish for a sleek appearance.Straight-flap gum closure helps keep contents secure.Made of 28-lb paper.Finish: Smooth.Envelope Flap: Straight Flap.The JAM Paper 13.5" x 13.5" white envelope features a closure that can be easily opened and closed for your convenience.

Price is  $78.99
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LUX 13 x 13 Square Envelopes, 50/Box, 28lb. White (WS-5222-50) image 1
Item: 2146488
Model: WS-5222-50

Please note: most square envelopes require additional postage. This extra large square envelope is perfect for sending calendars, important announcements for special events, corporate dinners or weddings..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.28 lb. paper weight.Usually ships same or next business day.13 x 13 Square are perfect for invitations/announcements/greeting cards/special occasions.Comes in 28lb. White, 28lb. Text Paper.Dimensions: 13"L x 13"W.LUX 13 x 13 Square are perfect for invitations, announcements, greeting cards and special occasions, square envelopes create a unique look!

Price is  $111.59
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JAM Paper 13 1/2 Square Invitation Envelope, 13 1/2" x 13 1/2", White, 25/Pack (3992323) image 1
Item: 261312
Model: 3992323

When you have larger mail that needs to be sent, these 13 1/2" x 13 1/2" envelopes do the job. Calendars, announcements, dinner invitations, and more lay flat and fold-free, keeping your mail professional. This pack contains 25 13 1/2" x 13 1/2" white envelopes and each envelope has a square opening, straight flap, gum closure, is made from 28 lb. paper, and has a smooth finish..Smooth paper finish for a sleek appearance.Straight-flap gum closure helps keep contents secure.Finish: Smooth.Envelope Type: Business.Envelope Flap: Straight Flap.Ideal for everyday business, JAM Paper White Square Invitation Envelopes provide versatility and ease for all your mailing needs.

Price is  $43.59
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LUX 10 x 10 Square Envelopes, 50/Box, 28lb. White (WS-5221-50) image 1
Item: 2146654
Model: WS-5221-50

Please note: most square envelopes require additional postage. This extra large square envelope is perfect for sending calendars, important announcements for special events, corporate dinners or weddings..Comes in 28lb. White, 28lb. Text Paper.Moistenable Glue Sealing Method.10 x 10 Square Envelopes - 28 lb. White 50/PK.Perfect for sending calendars, important announcements for special events, corporate dinners or weddings.Usually ships same or next business day.LUX 10 x 10 Square are perfect for invitations, announcements, greeting cards and special occasions, square envelopes create a unique look!

Price is  $31.39
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JAM Paper Invitation Envelope, 13 1/2" x 13 1/2", White, 250/Box (3992323H) image 1
Item: 1589827
Model: 3992323H

JAM Paper White Square Invitation Envelopes are a classic and simple choice for mailings of all kinds. Use these 13 1/2" x 13 1/2" envelopes to send large documents, blueprints, announcements, marketing materials, greetings, unique invitations, magazines, artwork, and more. Your mail stays protected and appropriate whether you are in the home, office, classroom, and everything in between. Available in a variety of sizes, finding your perfect fit is simple. This pack includes 250 white envelopes made from 28 lb. paper. Each envelope has a square opening, straight flap, gum closure, and smooth finish..White envelope.Blank interior for personalized message.Envelope Size: 13.5" x 13.5".Paper Weight: 28 lbs..Pack includes 250 envelopes.The JAM Paper 13.5" x 13.5" white envelope is great to use for announcements and different kind of invitations.

Price is  $345.59
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LUX #14 Open End Envelopes (5 x 11 1/2) 50/Box, 28lb. White (WS-5200-50) image 1
Item: 2146577
Model: WS-5200-50

LUX #14 Open End Envelopes (5 x 11 1/2) are great for sending flat, bulky materials/catalogs/jumbo cards, sold as 50 per box.#14 Open End Envelopes (5 x 11 1/2) are great for sending flat, bulky materials/catalogs/jumbo cards.Comes in 28lb. White, 28lb. Text Paper.Dimensions: 5"L x 11 1/2"W.Moistenable Glue Sealing Method.LUX #14 Open End Envelopes (5 x 11 1/2) are super-spacious and the ideal envelope for your bulkier paperwork!

Price is  $56.49
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JAM Paper 11.5" x 11.5" Large Square Invitation Envelopes, White, 50/Pack (3992321I) image 1
Item: 1588470
Model: 3992321I

JAM Paper® White Square Envelopes are your go-to envelope for larger mailings. Announcements, marketing materials, invitations, blueprints, business correspondence, brochures, flyers, and more fit without needing to bend, fold, or crease contents while staying protected as each 11 1/2" x 11 1/2" envelope is made from 28 lb. paper. Appropriate for both office and home use. Available in a variety of sizes, finding your perfect fit is just a click away! This pack includes 50 white envelopes. Each envelope has a square opening, straight flap, gum closure, and smooth finish..White envelope.Blank interior for personalized message.Envelope Size: 11.5" x 11.5".Paper Weight: 28 lbs..Pack includes 50 envelopes.The JAM Paper 11.5" x 11.5" white envelope is an ideal medium to send your cordial invitations for a wide variety of occasions.

Price is  $72.39
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LUX 7 x 7 Square Envelopes, 50/Box, 70lb. White (10936-50) image 1
Item: 282279
Model: 10936-50

LUX® Square envelope in bright white color with contour flap has a peel and press closure and measures 7" x 7". Envelope of 70 lbs basis weight adds a unique touch to any announcements and is sold as 50 per pack..Bright white.Size: 7" x 7".Closure: Peel and press.Opening: Square flap.Material: Paper.Finish: Smooth.Paper weight: 70 lbs..Seam type: Center.Laser and inkjet printer compatible.It's easy to customize your envelope.Add a printed return address or upload a design using your digital file.Unique A7 vertical type envelope (7 1/4" x 5 1/4") will surely be an eye catcher... you can send your 5 x 7 pictures or cards anytime.A7 style is a multipurpose envelope, ideal for social and announcement functions, it may also be utilized as an outer envelope for invitation purposes.Boasting a smart-looking square flap, the A7 vertical envelope fits inside envelope sizes A8, A9, A10 for those special occasions that require additional enclosures.7 x 7 Square Envelopes are perfect for announcements/weddings/greeting cards/invitations.Comes in 70lb. White, 70lb. Text Paper.Dimensions: 7"L x 7"W.Peel & Press Sealing Method.Lux® Square envelope in bright white color of size 7" x 7" provides a bit of sparkle to your event and comes with a contour flap, is sold as 50 per pack.

Price is  $45.79
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JAM Paper 11.5" x 11.5" Large Square Invitation Envelopes, White, 25/Pack (3992321) image 1
Item: 261310
Model: 3992321

If good things come in small packages, then you'll be in for a great surprise with JAM Paper® Square Invitation Envelopes. These 11 1/2" x 11 1/2" white envelopes fit all your large documents, letters, announcements, business correspondence, and more. Say goodbye to folding and creasing when you use these sturdy and classic envelopes! However you use, our high quality envelopes provide versatility and style. This pack contains 25 11 1/2" x 11 1/2" envelopes, and each has a square opening, straight flap, gum closure, smooth finish, and is made from 28 lb. paper..Size: 11 1/2" x 11 1/2".Closure: Gum.Opening: Square.Material: Paper.Envelope type: Business.Perfect for greeting cards, invitations, weddings or any announcement.25 envelopes per pack.JAM Paper® 11 1/2" x 11 1/2" White squared envelope with 25 pieces is perfect for greeting cards and weddings making your invitation a sparkle.

Price is  $40.29
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LUX 9 x 9 Square Envelopes, 50/Box, 70lb. White (11009-50) image 1
Item: 282321
Model: 11009-50

LUX® Square envelope in white color features paper that is one grade heavier than standard envelope paper and also comes with peel and press closure. Envelope has 70 lbs basis weight, size of 9" x 9" and is sold as 50 per pack..9 x 9 Square Envelopes are perfect for announcements/weddings/greeting cards/invitations.Comes in 70lb. White, 70lb. Text Paper.Dimensions: 9"L x 9"W.Closure: Peel and press.Opening: Square flap.Material: Paper.Finish: Smooth.Seam type: Center.It's easy to customize your envelope.Add a printed return address or upload a design using your digital file.Most square envelopes require additional postage.Paper is one grade heavier than standard envelope paper.These envelopes have a moistenable gum on the flap to seal them.Same bright look as our other Bright Whites, with a little more heft than standard 24 lb., for an added sense of quality, and strength.LUX® Square envelope in white color measuring 9" x 9" has a basis weight of 70 lbs and assures optimum quality and strength and is sold as 50 per pack.

Price is  $43.29
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JAM Paper 10.5" x 10.5" Square Invitation Envelopes, White, 25/Pack (3992320) image 1
Item: 261309
Model: 3992320

Surprise recipients with JAM Paper® Square Invitation Envelopes. These 10 1/2" x 10 1/2" white envelopes are the perfect size to fit larger-than-normal content such as special announcements, artwork, and business correspondence. Once recipients receive this envelope, they'll immediately start to wonder what's inside! However you use, our high quality envelopes provide versatility and style. This pack contains 25 10 1/2" x 10 1/2" envelopes, and each has a square opening, straight flap, gum closure, smooth finish, and is made from 28 lb. paper..Size: 10 1/2" x 10 1/2".Closure: Gum.Opening: Square.Material: Paper.Envelope type: Business.Perfect for greeting cards, invitations, weddings or any announcement.25 envelopes per pack.JAM Paper® 10 1/2" x 10 1/2" White squared envelope with 25 pieces is perfect for greeting cards and weddings making your invitation a sparkle.

Price is  $33.99
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LUX 6 1/2 x 6 1/2 Square Envelopes, 50/Box, 70lb. Bright White (10928-50) image 1
Item: 282180
Model: 10928-50

LUX® Square envelope in bright white color has a peel and press closure and measures 6 1/2" x 6 1/2". Envelope of 70 lbs basis weight adds a unique touch to any announcements and is sold as 50 per pack..6 1/2 x 6 1/2 Square Envelopes are perfect for announcements/weddings/greeting cards/invitations.Comes in 70lb. Bright White, 70lb. Text Paper.Closure: Peel and press.Opening: Square flap.Material: Paper.Finish: Smooth.Paper weight: 70 lbs..Seam type: Side.It's easy to customize your envelope.Add a printed return address or upload a design using your digital file.Most square envelopes require additional postage, paper is one grade heavier than standard envelope paper.These envelopes are manufactured by Envelopes.com and are sealable with Peel and Press™.Same bright look as our other Bright Whites, with a little more heft than standard 24 lb., for an added sense of quality, and strength.LUX 6 1/2 x 6 1/2 Square Envelopes are perfect for invitations, announcements, greeting cards and special occasions, square envelopes create a unique look!

Price is  $29.79
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JAM Paper 11.5" x 11.5" Large Square Invitation Envelopes, White, 100/Pack (03992321B) image 1
Item: 261331
Model: 03992321B

JAM Paper® White Square Envelopes are the envelopes you need for all your larger mailings. Measuring 11 1/2" x 11 1/2" and made from 28 lb. paper, these envelopes are your reliable resource for sending unusually large contents. Ideal for inserting blueprints, announcements, magazines, flyers, marketing materials, paperwork, artwork, and much more. No matter what the material, your contents stay organized, secure, and stylish. Appropriate for both office and home use. Available in a variety of sizes, finding your perfect fit is just a click away! This pack includes 100 white envelopes. Each envelope has a square opening, straight flap, gum closure, and smooth finish..Size: 11 1/2" x 11 1/2".Closure: Gum.Opening: Square.Material: Paper.Envelope type: Business.Perfect for greeting cards, invitations, weddings or any announcement.100 envelopes per pack.JAM Paper® 11 1/2" x 11 1/2" White squared envelope with 100 pieces is perfect for greeting cards and weddings making your invitation a sparkle.

Price is  $115.09
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LUX 5 1/2 x 5 1/2 Square Envelopes, 50/Box, 70lb. Bright White (10902-50) image 1
Item: 282100
Model: 10902-50

LUX® Square Envelope in bright white color features a peel and press sealing which ensures safety. Envelope measuring 5 1/2" x 5 1/2" has 70 lbs paper weight ideal for commercial usage and sold as a pack of 50..5 1/2 x 5 1/2 Square Envelopes are perfect for announcements/weddings/greeting cards/invitations.Comes in 70lb. Bright White, 70lb. Text Paper.Closure: Peel and press.Opening: Square flap.Finish: Smooth.Seam type: Side.One grade heavier than standard envelope paper.LUX® Square Envelope in bright white color with 70 lbs paper weight measuring 5 1/2" x 5 1/2" is ideal for greeting cards, weddings or any other advertisements.

Price is  $26.79
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JAM Paper 9.5 x 9.5 Square Invitation Envelopes, White, 50/Pack (4233I) image 1
Item: 1588500
Model: 4233I

The JAM Paper 9.5" x 9.5" regular white square envelope is an ideal way to make your messages and announcements more stylish. You can encase your invitations for birthday, wedding and graduation parties or send out personalized messages through this sle ek envelope. Made of paper, it is high on durability and resistant to wear and tear. Its folding closure type offers a convenient opening and closing process and is ideal for carrying your messages, cards and invitation notes safely. A regular white sha de enhances the overall appearance of this envelope making it suitable to meet your requirements. The vellum finish makes it a stylish accessory to go with your invites and notes. It contains 50 envelopes per pack so that you never fall short of meeting your requirements. Whatever the occasion is, this envelope will help you to send your invitations and messages in style..Regular white square envelope.Blank interior for personalized message.Envelope Size: 9.5" x 9.5".Paper Weight: 30 lbs..Pack includes 50 envelopes.The JAM Paper 9.5" x 9.5" regular white square envelope is an ideal medium to send your cordial invitations for a wide variety of occasions.

Price is  $40.39
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LUX 5 1/2 x 5 1/2 Square Envelopes, 1000/Box, 70lb. Bright White (10902-1000) image 1
Item: 516617
Model: 10902-1000

LUX® Square envelope features a peel and a press flap for secured sealing. Envelope measuring 5 1/2" x 5 1/2" has a paper weight of 70 lbs and features one grade heavier paper than standard paper, sold as 1000 per box..5 1/2 x 5 1/2 Square Envelopes are perfect for announcements/weddings/greeting cards/invitations.Comes in 70lb. Bright White, 70lb. Text Paper.1000/box.Closure: Peel & press.Opening: Square flap.Collection name: White.Paper is one grade heavier than standard envelope paper.LUX 5 1/2 x 5 1/2 Square Envelopes are perfect for invitations, announcements, greeting cards and special occasions, square envelopes create a unique look!

Price is  $143.29
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JAM Paper 8.5 x 8.5 Square Invitation Envelopes, White, 50/Pack (4231I) image 1
Item: 1588502
Model: 4231I

The JAM Paper 8.5" x 8.5" white square envelope is a great way to make your invites and personalized messages more appealing. Ideal for sending out wedding, birthday and graduation party invites, this sleek envelope can also be used for thank you cards and RSVPs. Constructed of quality paper, it is resistant to wear and tear. Its folding closure type offers a convenient opening and closing process and is ideal for carrying your messages, cards and invitation notes safely. Available in a lovely white shade, this envelope is apt for almost any occasion. The smooth finish makes it a stylish accessory to go with your invites and notes. It includes 50 envelopes per pack to fulfill your need. Whatever the occasion is, this envelope will help you to send your invitations in style..White square envelope.Blank interior for personalized message.Envelope Size: 8.5" x 8.5".Paper Weight: 28 lbs..Pack includes 50 envelopes.The JAM Paper 8.5" x 8.5" white square envelope is optimal for dispatching your personalized messages and invitations.

Price is  $44.19
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LUX #14 Open End Envelopes (5 x 11 1/2) 500/Box, 28lb. White (WS-5200-500) image 1
Item: 2146549
Model: WS-5200-500

LUX #14 Open End Envelopes (5 x 11 1/2) are great for sending flat, bulky materials/catalogs/jumbo cards, sold as 500 per box.#14 Open End Envelopes (5 x 11 1/2) are great for sending flat, bulky materials/catalogs/jumbo cards.Comes in 28lb. White, 28lb. Text Paper.Dimensions: 5"L x 11 1/2"W.Moistenable Glue Sealing Method.LUX #14 Open End Envelopes (5 x 11 1/2) are super-spacious and the ideal envelope for your bulkier paperwork!

Price is  $113.99
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About 13 x 13 Envelopes

13 x 13 envelopes are ideal for sending larger documents, artwork, or promotional materials that require extra space. Their square shape provides a unique presentation, making them perfect for invitations, brochures, and other creative mailings.

These envelopes are designed to protect contents while ensuring they arrive in pristine condition. With a variety of colors and finishes available, they can enhance your branding and add a professional touch to your correspondence.

When selecting 13 x 13 envelopes, consider features such as weight and durability to ensure they can withstand the rigors of mailing. Options with self-sealing flaps offer convenience, while those with security tints provide added privacy for sensitive documents.

Additionally, look for envelopes made from recycled materials for an eco-friendly choice. Whether you need a glossy finish for a polished look or a matte texture for a more understated appeal, there’s a 13 x 13 envelope to meet your needs.