Flat Mailing Envelopes

200 results
LUX 9 x 12 Open End Envelopes, 50/Box, White Linen (4894-WLI-50) image 1
Item: 1030037
Model: 4894-WLI-50

LUX™ Open end linen envelope in white color has flap for easy filling with peel & press secure sealing type. Envelope measuring 9" x 12" is ideal for holding coins/catalogs/jumbo cards, sold as 50 per pack..9 x 12 Open End Envelopes are perfect for sending documents/catalogs/direct mail/promotional material/brochures.Comes in White Linen, 80lb. Text Paper.Peel & Press Sealing Method.50/Pack.Closure: Peel & press™.Material: paper, paper weight: 80 lbs..Opening: Open end.Finish: Linen.Laser and inkjet printer compatible.Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards.Flap is on the short side, helping to keep things from falling out after opening, also called a "catalog" envelope.It comes in various sizes from tiny to huge, in white, traditional Kraft, and array of colors for special impact.LUX™ Open end linen envelope in white color measuring 9" x 12" is compatible with laser/inkjet printer and has a paper weight of 80 lbs for added strength/quality, sold as 50 per pack.

Price is  $110.99
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LUX 6.5" x 9.5" Open End Envelopes 50/Pack, Midnight Black (LUX-1645-56-50) image 1
Item: 23996441
Model: LUX-1645-56-50

LUX 6 1/2 x 9 1/2 Open End Envelopes in Midnight Black perfect for organizing documents/promotional materials/marketing materials/mailings/filing, sold as 50 per box. The 6 1/2 x 9 1/2 Open End Envelope in Midnight Black is our darkest envelope and made from quality 80lb. paper. Booklet envelopes are the professional way for sending contents you can't or shouldn't fold such as flat but bulky materials like pamphlets, brochures, sales literature, booklets, annual reports, magazines, or catalogs. Featuring a square back flap that's easily sealed by our Peel & Press strip, you'll save yourself the hassle of having to like or moisten each envelope..Comes in Midnight Black.Dimensions: 6.5"L x 9.5"W.Sold 50 per box.LUX 6 1/2 x 9 1/2 Open End Envelopes perfect for organizing documents, distributing promotional and marketing materials, mailing, filing and much more!

Price is  $22.99
Unit of measure 50/Pack
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JAM Paper Self Seal Business Envelope, 4 1/8 x 9 1/2, Cotton Gray, 250 Pack (4860-SG-250) image 1
Item: 24578400
Model: 4860-SG-250

High-quality envelopes for business documents, letters of recommendation, applications, booklets, folders, magazines..#10 Square Flap Envelopes.4 1/8 in x 9 1/2 in.Cotton Gray.Peel & Press Closure

Price is  $64.99
Unit of measure 250/Pack
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LUX Jumbo Open End Envelopes, 12.5" x 18.5", Bright White, 50/Pack (86272-50) image 1
Item: 282056
Model: 86272-50

LUX 12 1/2" x 18 1/2" Jumbo Envelopes perfect solution to accommodate artwork/maps/clothing/product samples/videos/marketing literature/promotional items/bulky gifts/large format documents, sold as 50 per box.Also called a catalog envelope, it actually comes in 39 sizes from tiny to huge, in white, traditional Kraft, and array of colors for special impact, available with moistenable flap, some with self stick peel and seal.Laser compatible.Finish: Smooth.LUX Jumbo open end envelope in bright white color measuring 12 1/2" x 18 1/2" is used for sending flat, heavy materials or many small items like coins, catalogs and jumbo cards which is sold as 50 per pack.

Price is  $156.59
Unit of measure 50/Pack
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30" x 22 1/2" x 1" - White Jumbo Fold-Over Mailer, 20/Bundle image 1
Item: 948952
Model: M30221

Jumbo fold-over mailer fully opens for easy packing. Simply lay product on the flat mailer, fold in and seal with tape. Shipped flat and sold in bundle quantities..Dimensions: 30" x 22 1/2" x 1".Mailer fully opens for easy packing, and simply lay product on the flat mailer, fold in and seal with tape.Attractive 200#/ECT-32-B white corrugated construction makes an impressive presentation.Shipped flat and sold in bundle quantities.20/Bundle.Staples brand 100% satisfaction guaranteed.This one-piece Jumbo Fold-Over Mailer is great for oversized flat items like portfolios, maps and blue prints.

Price is  $202.89
Unit of measure 20/Bundle
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12.25" x 9.75" Self-Sealing Fiberboard Mailer, 5, Brown, 100/Carton (RM5K) image 1
Item: 447183
Model: RM5K

The 9-3/4" x 12-1/4" Kraft Flat Mailer features closure that is quick and easy to use. Mailer includes rigid chipboard construction that protects contents from bending and crushing. Sold 100 per case..Strong chipboard mailers protect photos and documents during shipping..Manufactured from .028 kraft chipboard..Lightweight to save on postage..No additional stiffeners needed..Peel-and-seal closure..Pull tab tear strip for easy opening..Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $76.69
Unit of measure 100/Carton
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JAM Paper Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 250/Pack (75746-250) image 1
Item: 24578367
Model: 75746-250

High-quality envelopes for business documents, letters of recommendation, applications, booklets, folders, magazines..#10 Envelopes.4 1/8 in x 9 1/2 in.White.Peel & Press Closure

Price is  $72.59
Unit of measure 250/Pack
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LUX 28lbs. 11" x 17" Kraft Open End Flap Jumbo Envelopes, Brown Kraft, 500/BX image 1
Item: 385694
Model: 83478-500

LUX® Jumbo Envelope in brown kraft color features flap on short side, serving to keep things from falling out after opening. Envelope measuring 11" x 17" is laser compatible and has a paper weight of 28 lbs, sold as 500 per box..Brown Kraft.Size: 11" x 17".Opening: Open end flap.Material: Paper.Paper weight: 28 lbs..Collection name: Kraft.Laser printer compatible.Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards.Flap is on the short side, helping to keep things from falling out after opening.Also called a catalog envelope.Business-grade, brown Kraft is actually an orangey brown the businessy color you've seen in the mail all your life.LUX® Jumbo Envelope in brown kraft color measuring 11" x 17" with a paper weight of 28 lbs is used for sending flat, heavy materials or many small items like coins, catalogs and jumbo cards, sold as 500 per box.

Price is  $273.99
Unit of measure 500/Box
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7.5" x 5.5" Literature Mailer, 50/Bundle (M752BFK) image 1
Item: 1578445
Model: M752BFK

Reduce your mailing costs with the smartly-designed Partners Brand M752BFK brown 2" x 7.5" kraft easy-fold mailers. This one-piece mailer features multiple depths that ensure a proper fit for your products as all you need to do is place the item in the center, fold it as per requirement and seal with tape. Its rectangle shape gives you more room to store your items. This mailer measures 2"H x 7.5"W x 5.5"D in size. It is shipped and stored flat to save space..Product Type: Easy-Fold Mailers.Brown colored kraft corrugated construction.Dimensions: 2"H x 7.5"W x 5.5"D.The Partners Brand M752BFK brown 2" x 7.5" kraft easy-fold mailers provides a economical solution to packaging problems for items that needs to be mailed.

Price is  $50.39
Unit of measure 50/Bundle
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LUX 6 x 9 Kraft Open End Envelopes (6 x 9) - Airmail - Pack of 50 (2444794) image 1
Item: 2444794
Model: 1644-AIR-50

Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards. Flap is on the short side, helping to keep things from falling out after opening. Also called a catalog envelope, it actually comes in 39 sizes from tiny to huge, in white, traditional kraft, and array of colors for special impact. Available with moistenable flap, some with self-stick Peel & Seal. Also see our Open Side collection..6 x 9 Open End Envelopes are perfect for sending documents/catalogs/direct mail/promotional material/brochures.Comes in Airmail, 24lb. Text Paper.Dimensions: 6"H x 9"W.Moistenable Glue Sealing Method.Contains 50 Envelopes per pack.Comes in Airmail, 24lb. Text Paper.6 x 9 Open End Envelopes.24lb. Airmail.LUX 24lb. Airmail 6 x 9 Open End Envelopes are perfect for sending documents, catalogs, direct mail, promotional material, brochures and more.

Price is  $28.79
Unit of measure 50/Pack
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JAM Paper 6 x 9 Open End Envelopes, Sunflower, 500/Pack (EX1644-12-500) image 1
Item: 24578491
Model: EX1644-12-500

Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards..Open End Catalog Envelopes.Size: 6 inches x 9 inches.Sunflower Yellow

Price is  $154.69
Unit of measure 500/Pack
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LUX Jumbo Kraft Open End Flap Envelopes, 13" x 17", Brown Kraft, 250/Box (85739-250) image 1
Item: 385899
Model: 85739-250

LUX 13 x 17 Jumbo envelopes perfect solution to accommodate artwork, maps, clothing, product samples, videos, marketing literature, promotional items, bulky gifts, large format documents, sold as 250 per box.Laser printer compatible.Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards.Flap is on the short side, helping to keep things from falling out after opening.Also called a catalog envelope.Business-grade, brown Kraft is actually an orangey brown the businessy color you've seen in the mail all your life.LUX Jumbo envelope in brown kraft color measuring 13" x 17" has a paper weight of 28 lbs and can be used to send multiple items like cards, coins or catalogs, sold as 250 per box.

Price is  $137.69
Unit of measure 250/Box
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JAM Paper Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 250/Pack (75761-250) image 1
Item: 24578333
Model: 75761-250

High-quality envelopes for business documents, letters of recommendation, applications, booklets, folders, magazines..#10 Window Envelopes.4 1/8 in x 9 1/2 in.White.Peel & Press Closure

Price is  $51.69
Unit of measure 250/Pack
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LUX 9 x 12 Open End Envelopes, 500/Box, Black Linen (4894-BLI-500) image 1
Item: 1028613
Model: 4894-BLI-500

LUX 9 x 12 Open End Envelopes are perfect for sending documents/catalogs/direct mail/promotional material/brochures, sold as 500 per box.Black linen.Size: 9" x 12".Closure: Peel & press™.Material: paper, paper weight: 80 lbs..Opening: Open end.Finish: Linen.Laser and inkjet printer compatible.Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards.Flap is on the short side, helping to keep things from falling out after opening, also called a "catalog" envelope.It comes in various sizes from tiny to huge, in white, traditional Kraft, and array of colors for special impact.LUX 9 x 12 Open End Envelopes are perfect for organizing documents, distributing promotional and marketing materials, mailing, filing and much more!

Price is  $190.89
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JAM Paper 6 x 9 Open End Envelopes, Teal Blue, 500/Pack (EX1644-25-500) image 1
Item: 24578467
Model: EX1644-25-500

Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards..Open End Catalog Envelopes.Size: 6 inches x 9 inches.Teal

Price is  $119.29
Unit of measure 500/Pack
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Staples Gummed Catalog Envelopes, 9"L x 12"H, White, 100/Box (50264/47286N) image 1
Item: 472886
Model: ST472886N-CC

Protect important documents in these Staples catalog envelopes. These bright white-wove 28-pound paper envelopes are ideal for mailing and storing documents laid flat to prevent creases. Each envelope in this 100-count box is large enough to accommodate thicker files, catalogs and brochures. With heavily gummed flaps, these Staples catalog envelopes seal securely shut to keep papers safe..Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes.White paper shows labeling and writing clear and concise.Dimensions: 9"L x 12"H, size #10.The gummed flap closure keeps your documents secured inside the envelope.Envelopes come in boxes of 100, making them an easy, and economical choice for the business that needs to spend wisely without sacrificing quality.Transport documents securely with this 100-count box of Staples 9 x 12-inch white wove gummed-flap catalog envelopes.

Price is  $36.99
Unit of measure 100/Box
Next-Day Delivery by tomorrow
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LUX 9 x 12 Open End Envelopes, 1000/Box, Black Linen (4894-BLI-1000) image 1
Item: 1028615
Model: 4894-BLI-1000

LUX 9 x 12 Open End Envelopes are perfect for sending documents/catalogs/direct mail/promotional material/brochures, sold as 1000 per box.1000/Box.Black linen.Size: 9" x 12".Closure: Peel & press™.Material: paper, paper weight: 80 lbs..Opening: Open end.Finish: Linen.Laser and inkjet printer compatible.Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards.Flap is on the short side, helping to keep things from falling out after opening, also called a "catalog" envelope.It comes in various sizes from tiny to huge, in white, traditional Kraft, and array of colors for special impact.LUX 9 x 12 Open End Envelopes are perfect for organizing documents, distributing promotional and marketing materials, mailing, filing and much more!

Price is  $287.99
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JAM Paper Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 250/Pack (43703-250) image 1
Item: 24578370
Model: 43703-250

High-quality envelopes for business documents, letters of recommendation, applications, booklets, folders, magazines..#10 Window Envelopes.4 1/8 in x 9 1/2 in.White.Peel & Press Closure

Price is  $57.99
Unit of measure 250/Pack
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JAM Paper 6 x 9 Open End Envelopes, Gray, 250/Pack (EX1644-22-250) image 1
Item: 24578473
Model: EX1644-22-250

Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards..Open End Catalog Envelopes.Size: 6 inches x 9 inches.Grey

Price is  $64.99
Unit of measure 250/Pack
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LUX 10" x 13" 80lbs. Open End Envelopes, Magenta Pink, 50/Pack (EX4897-10-50) image 1
Item: 282043
Model: EX4897-10-50

LUX® Magenta open end envelope with a moistenable glue flap on short side helps hold things from falling out when opened. Envelope of size 10" x 13" has a paper weight of 80 lbs and is sold as 50 per pack..Magenta.Size: 10" x 13".Closure: Moistenable glue.Opening: Open end.Material: Paper.Finish: Smooth.Flap: Wallet.Collection: Exclusive.Paper weight: 80 lbs..50 envelopes per pack.Laser compatible.It's easy to customize your envelope.Add a printed return address or upload a design using your digital file.LUX® Open end envelope in magenta color measuring 10" x 13" is used for sending flat, heavy materials or many small items like coins, catalogs and jumbo cards, is sold as 50 per pack.

Price is  $53.39
Unit of measure 50/Pack
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7" x 9" Self-Sealing Fiberboard Mailer, Brown, 100/Carton (RM10K) image 1
Item: 447181
Model: RM10K

The 7" x 9" Kraft Flat Mailer features closure that is quick and easy to use. Mailer includes rigid chipboard construction that protects contents from bending and crushing. Sold 100 per case..7" x 9".QuickStrip closure is quick and easy to use - simply remove strip and press to close.Rigid chipboard construction protects contents from bending and crushing.Convenient tear-tab opens easily without harming contents.Lightweight mailers reduces postage costs.Staples Brand 100% Satisfaction Guaranteed.Dimensions: 7" x 9".Manufactured from .028 kraft chipboard..Peel and seal closure with pull tear-strip for easy opening..Light-weight to save on postage..No additional stiffeners needed..Sold 100 per case..Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $45.59
Unit of measure 100/Carton
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18" x 24" Self-Sealing Fiberboard Mailer, White, 50/Carton (RM11PS) image 1
Item: 495900
Model: RM11PS

Staples® 18" x 24" Self-Seal White Flat Mailers are made from strong chipboard and require no additional stiffeners to protect your documents. Sold 50 per Case..18" x 24".QuickStrip closure is quick and easy to use - simply remove strip and press to close.Rigid chipboard construction protects contents from bending and crushing.Attractive white mailers provide a clean and professional appearance.Convenient tear-tab opens easily without harming contents.Lightweight mailers reduces postage costs.Dimensions: 18" x 24".Manufactured from .028 white chipboard..Strong chipboard mailers protect photos and documents during shipping..Light-weight to save on postage, no additional stiffeners needed..Convenient peel and seal closure with pull tab tear-strip for easy opening..Sold 50 per case..Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $118.39
Unit of measure 50/Carton
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JAM Paper 6 x 9 Open End Envelopes, Sunflower, 250/Pack (EX1644-12-250) image 1
Item: 24578485
Model: EX1644-12-250

Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards..Open End Catalog Envelopes.Size: 6 inches x 9 inches.Sunflower Yellow

Price is  $73.95
Unit of measure 250/Pack
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LUX 9 x 12 Open End Envelopes, 250/Box, Black Linen (4894-BLI-250) image 1
Item: 1028614
Model: 4894-BLI-250

LUX 9 x 12 Open End Envelopes are perfect for sending documents/catalogs/direct mail/promotional material/brochures, sold as 250 per box.250/Box.Black linen.Size: 9" x 12".Closure: Peel & press™.Material: paper, paper weight: 80 lbs..Opening: Open end.Finish: Linen.Laser and inkjet printer compatible.Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards.Flap is on the short side, helping to keep things from falling out after opening, also called a "catalog" envelope.It comes in various sizes from tiny to huge, in white, traditional Kraft, and array of colors for special impact.LUX 9 x 12 Open End Envelopes are perfect for organizing documents, distributing promotional and marketing materials, mailing, filing and much more!

Price is  $154.19
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Jam Paper Self Seal Catalog Envelope, 8 3/4" x 11 3/4", White, 50/Pack (356838568I) image 1
Item: 24557984
Model: 356838568I

Keeping your mail safe and stylish is simple with JAM Paper Peel & Seal Envelopes. Use these white envelopes to send a variety of mail while saving time, as they feature a peel and seal closure that allows you to quickly get to the post office and have your mail on the way to recipients. Simply pull off the strip and pat down to secure invitations, announcements, greetings, important documents, files, presentations, contracts, and more! Appropriate for both home and office use. This pack includes 50 white envelopes made from 28 lb. paper measuring 8 3/4" x 11 3/4". Each envelope has an open end opening, wallet flap, self adhesive strip closure, and smooth finish. Size: 8.75in x 11.75in | Color: White | Quantity: 50/pack.Color: White.Size: 8.75 x 11.75 inches.Qunatity: 50 per pack

Price is  $24.99
Unit of measure 50/Pack
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5.13" x 5.13" Self-Sealing Fiberboard Mailer, White, 200/Carton (RM8SS) image 1
Item: 424942
Model: RM8SS

The 5-1/8" x 5-1/8" Self-Seal White Flat Mailers are made from strong chipboard and require no additional stiffeners to protect your documents. Sold 200 per Case..5-1/8" x 5-1/8".QuickStrip closure is quick and easy to use - simply remove strip and press to close.Rigid chipboard construction protects contents from bending and crushing.Attractive white mailers provide a clean and professional appearance.Convenient tear-tab opens easily without harming contents.Lightweight mailers reduces postage costs.Staples Brand 100% Satisfaction Guaranteed.Dimensions: 5-1/8" x 5-1/8".Manufactured from .020 white chipboard..Strong chipboard mailers protect photos and documents during shipping..Light-weight to save on postage, no additional stiffeners needed..Convenient peel and seal closure with pull tab tear-strip for easy opening..Sold 200 per case..Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $81.59
Unit of measure 200/Carton
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Staples EasyClose Invitation Envelopes, 5.75" x 8.75", Ivory, 100/Box (473955/19195) image 1
Item: 473955
Model: 473955

Mail letters, bills, brochures, records and other important papers with these invitation envelopes. With square flaps, these envelopes are ready to seal without the use of any water or sponges and are made with 24-pound paper-stock, providing durability. These Staples EasyClose invitation envelopes have an ivory color that helps addresses and other text to stand out while offering a clean look..Invitation envelope keeps your documents flat in the mail.Envelope size: 5.75"H x 8.75"W.EasyClose envelope closure.Flap and adhesive method: square with adhesive strip.Ivory and made of paper.100 envelopes per box.Great to use to store items such as invitations.Send mail, checks and other statements with this 100-pack of Staples EasyClose ivory invitation envelopes.

Price is  $25.99
Unit of measure 100/Box
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JAM Paper #10 Policy Metallic Business Envelopes, 4.125 x 9.5, Stardream Gold, 50/Pack (1261602I) image 1
Item: 1588585
Model: 1261602I

JAM Paper® #10 Open End Policy Envelopes hold and send important mail with style. Whether you are sending out checks, money orders, or catalogs, these gold metallic policy envelopes have your back. Keep important papers flat and crease-free by simply placing inside. No matter the item or occasion, our envelopes provide style and versatility. This pack contains 50 Gold Stardream Metallic #10 policy envelopes. Each envelope measures 4 1/8" x 9 1/2", has an open end opening, straight flap, button string tie closure, is made from 32 lb. paper, and has a metallic finish..Product Type: Stardream Policy Envelope.Gold stardream paper envelope.Envelope Size: 4.13" x 9.5".The JAM Paper #10 (4.13" x 9.5") stardream metallic policy envelope is a cheerful way of sending out mails or invites.

Price is  $39.99
Unit of measure 50/Pack
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JAM Paper 9.5 x 12.625 Booklet Commercial Envelopes, White, 100/Pack (953454B) image 1
Item: 263761
Model: 953454B

Fold no more. With JAM Paper® Booklet Envelopes, your documents remain flat minus creases and lines. Stay professional when mailing records, business correspondence, pamphlets, and more without sacrificing presentation. Available in an assortment of sizes and colors, our envelopes are sure to fit all your needs. This pack contains 100 straight flap White Linen envelopes. Each envelope measures 9 1/2" x 12 3/8", has a booklet opening, gum closure, is made from 28 lb. paper, and has a smooth finish..Size: 9 1/2" x 12 5/8".Closure: Gum.Opening: Booklet.Material: Paper.Finish: Linen.Perfect for greeting cards, invitations, weddings or any announcement.Paper weight: 32 lbs..100 envelopes per pack.JAM Paper® White large booklet envelopes in a pack of 100 features square gummed flap and is designed to fit a large booklet while looking sleek at the same time.

Price is  $43.09
Unit of measure 100/Box
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LUX 28lbs. 11" x 17" Open End Flap Jumbo Envelopes, Bright White, 500/BX image 1
Item: 385905
Model: 85923-500

LUX 11 x 17 Jumbo Envelopes perfect solution to accommodate artwork/maps/clothing/product samples/videos/marketing literature/promotional items/bulky gifts/large format documents, sold as 500 per box.11 x 17 Jumbo Envelopes perfect solution to accommodate artwork/maps/clothing/product samples/videos/marketing literature/promotional items/bulky gifts/large format documents.Comes in 28lb. Bright White.Dimension: 11"L x 17"W.Sold 500 per box.Paper weight: 28 lbs..Collection name: White.Laser printer compatible.Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards.Flap is on the short side, helping to keep things from falling out after opening.Same bright look as our other bright whites, with a little more heft than standard 24 lbs., for an added sense of quality, and strength.Opening: Open end flap.Material: Paper.LUX® Jumbo envelope in bright white color measuring 11" x 17" has a paper weight of 28 lbs and can be used to send multiple items like cards, coins or catalogs, sold as 500 per box.

Price is  $297.99
Unit of measure 500/Box
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LUX 6 x 9 Open End Envelopes, 50/Box, Silver Metallic (1644-06-50) image 1
Item: 1030017
Model: 1644-06-50

LUX 6 x 9 Open End Envelopes are perfect for sending documents/catalogs/direct mail/promotional material/brochures, sold as 50 per box.Silver metallic.Size: 6" x 9".Closure: Peel & press™.Material: paper, paper weight: 80 lbs..Opening: Open end.Finish: Smooth.Laser and inkjet printer compatible.Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards.Flap is on the short side, helping to keep things from falling out after opening, also called a "catalog" envelope.It comes in various sizes from tiny to huge, in white, traditional Kraft, and array of colors for special impact.LUX 6 x 9 Open End Envelopes are perfect for organizing documents, distributing promotional and marketing materials, mailing, filing and much more!

Price is  $35.29
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LUX 9 x 12 Open End Envelopes, 50/Box, Seafoam (LUX-4894-113-50) image 1
Item: 1030047
Model: LUX-4894-113-50

LUX™ Open end vellum envelope in seafoam color has flap for easy filling with peel & press secure sealing type. Envelope measuring 9" x 12" is ideal for holding coins/catalogs/jumbo cards, sold as 50 per pack..9 x 12 Open End Envelopes are perfect for sending documents/catalogs/direct mail/promotional material/brochures.Comes in Seafoam, 80lb. Text Paper.Peel & Press Sealing Method.50/Pack.Closure: Peel & press™.Material: paper, paper weight: 80 lbs..Opening: Open end.Finish: Vellum.Laser and inkjet printer compatible.Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards.Flap is on the short side, helping to keep things from falling out after opening, also called a "catalog" envelope.It comes in various sizes from tiny to huge, in white, traditional Kraft, and array of colors for special impact.LUX™ Open end vellum envelope in seafoam color measuring 9" x 12" is compatible with laser/inkjet printer and has a paper weight of 80 lbs for added strength/quality, sold as 50 per pack.

Price is  $26.39
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LUX 28lbs. 11" x 17" Kraft Open End Flap Jumbo Envelopes, Brown Kraft, 250/BX image 1
Item: 385689
Model: 83478-250

LUX® Jumbo Envelope in brown kraft color features flap on short side, serving to keep things from falling out after opening. Envelope measuring 11" x 17" is laser compatible and has a paper weight of 28 lbs, sold as 250 per box..Brown Kraft.Size: 11" x 17".Opening: Open end flap.Material: Paper.Paper weight: 28 lbs..Collection name: Kraft.Laser printer compatible.Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards.Flap is on the short side, helping to keep things from falling out after opening.Also called a catalog envelope.Business-grade, brown Kraft is actually an orangey brown the businessy color you've seen in the mail all your life.LUX® Jumbo Envelope in brown kraft color measuring 11" x 17" with a paper weight of 28 lbs is used for sending flat, heavy materials or many small items like coins, catalogs and jumbo cards, sold as 250 per box.

Price is  $197.79
Unit of measure 250/Box
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LUX 9 x 12 Open End Envelopes, 500/Box, Gold Metallic (4894-07-500) image 1
Item: 1028616
Model: 4894-07-500

LUX™ Open end smooth envelope in gold metallic color has flap for easy filling with peel & press secure sealing type. Envelope measuring 9" x 12" is ideal for holding coins/jumbo cards, sold as 500 per box..9 x 12 Open End Envelopes are perfect for sending documents/catalogs/direct mail/promotional material/brochures.Comes in Gold Metallic, 80lb. Text Paper.Closure: Peel & press™.Material: paper, paper weight: 80 lbs..Finish: Smooth.Laser and inkjet printer compatible.Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards.Flap is on the short side, helping to keep things from falling out after opening, also called a "catalog" envelope.It comes in various sizes from tiny to huge, in white, traditional Kraft, and array of colors for special impact.LUX™ Open end smooth envelope in gold metallic color measuring 9" x 12" is compatible with laser/inkjet printer and has a paper weight of 80 lbs for added strength/quality, sold as 500 per box.

Price is  $304.99
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12.75" x 15" Self-Sealing Fiberboard Mailer, White, 100/Carton (RM4SS) image 1
Item: 424857
Model: RM4SS

The 12-3/4" x 15" Self-Seal White Flat Mailers are made from strong chipboard and require no additional stiffeners to protect your documents. Sold 100 per Case..Strong chipboard mailers protect photos and documents during shipping..Manufactured from lightweight chipboard to save on freight costs..No additional stiffeners needed..Peel-and-seal closure..Pull tab tear strip for easy opening..Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $91.19
Unit of measure 100/Carton
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JAM Paper Open End Catalog Envelopes, 9" x 12", Brown Kraft Manila, 1000/Pack (4132-1M) image 1
Item: 24578349
Model: 4132-1M

9 x 12 catalog Envelopes are a professional way to send flat but bulky materials like pamphlets, brochures, sales literature, booklets, annual reports.Open End Catalog Envelopes.9" x 12".Brown Kraft

Price is  $285.59
Unit of measure 1000/Pack
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Staples Self Seal #13 1/2 Kraft Catalog Envelope, 10" x 13", Brown, 250/Box (ST486933-CC) image 1
Item: 486933
Model: ST486933-CC

Send literature safely with these brown kraft catalog envelopes. Each one features self-sealing adhesive strips, so it's easy to secure documents safely inside, while the 28-pound kraft paper construction helps resist tearing, moisture and the rigors of shipping. These Staples 10 x 13-inch self-sealing catalog envelopes are large enough to hold various large items without the need for folding..Catalog envelopes are perfect for catalogs, brochures, and documents.Made from brown kraft paper that conceals contents from prying eyes.Dimensions: 10"L x 13"H, size #13.Self-sealing closure quickly and easily secures your mail.Envelopes come in boxes of 250, making them an easy, and economical choice for the business that needs to spend wisely without sacrificing quality.20% post-consumer content for eco-friendliness.20% total recycled content.Ensure correspondence arrives undamaged with this box of 250 Staples 10 x 13-inch brown kraft self-sealing catalog envelopes.

Price is  $61.49
Unit of measure 250/Box
Next-Day Delivery by tomorrow
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7" x 9" Self-Sealing Fiberboard Mailer, White, 100/Carton (RM10SS) image 1
Item: 424860
Model: RM10SS

The 7" x 9" Self-Seal White Flat Mailers are made from strong chipboard and require no additional stiffeners to protect your documents. Sold 100 per Case..Strong chipboard mailers protect photos and documents during shipping..Manufactured from lightweight chipboard to save on freight costs..No additional stiffeners needed..Peel-and-seal closure..Pull tab tear strip for easy opening..Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $54.79
Unit of measure 100/Carton
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LUX 9 x 12 Kraft Open End Envelopes w/Security Tint, 28lb. White, 50/Box (WS-4894-ST-50) image 1
Item: 2146105
Model: WS-4894-ST-50

Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards. Flap is on the short side, helping to keep things from falling out after opening. Also called a "catalog" envelope, it actually comes in 39 sizes from tiny to huge, in white, traditional kraft, and array of colors for special impact. Features moistenable glue flap sealing method..9 x 12 Open End Envelopes are perfect for sending documents/catalogs/direct mail/promotional material/brochures.Comes in 28lb. White w/ Security Tint, 28lb. Text Paper.Dimensions: 9"L x 12"W.Moistenable Glue Sealing Method.LUX 9 x 12 Open End Envelopes are perfect for organizing documents, distributing promotional and marketing materials, mailing, filing and much more!

Price is  $41.99
Unit of measure 50/Pack
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14.5" x 20" Self-Sealing Fiberboard Mailer, #7, Brown, 250/Carton (B890SS) image 1
Item: 630158
Model: B890SS

Safely ship large, flat items with these 14.5" x 20" Self-Sealing Fiberboard Mailers, #7, in Brown. Constructed from rigid fiberboard to prevent bending and damage, these mailers are ideal for documents, photos, and other important materials. The self-sealing adhesive strip offers a secure, tamper-evident closure, and each carton includes 250 mailers—perfect for high-volume shipping in office, retail, or e-commerce environments..Great for mailing items that do not require cushioning.Lightweight material helps save on postage.#7 Mailer

Price is  $580.59
Unit of measure 250/Carton
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JAM Paper Open End Envelopes, Peel & Seal, 9 x 12, Brown Kraft, 250 Pack (75456-250) image 1
Item: 24578309
Model: 75456-250

9 x 12 Open End Envelopes in Brown Kraft are a professional way to send flat but bulky materials like pamphlets, brochures, sales literature, booklets.Open End Catalog Envelopes.9" x 12".Brown Kraft.Peel & Press Closure

Price is  $110.29
Unit of measure 250/Pack
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JAM Paper 10" x 13" Open End Catalog Envelopes, White, 25/Pack (1623199) image 1
Item: 366708
Model: 1623199

Organize and store a variety of content with JAM Paper® Open End Catalog Envelopes. Instead of compromising your content's original state, use these 10" x 13" catalog envelopes to keep them flat and secure. Also ideal to use for storing receipts, bills, money, photographs, and more! However you use, our high quality envelopes provide versatility and style. This pack contains 25 10" x 13" envelopes, and each has a open end opening, straight flap, gum closure, smooth finish, and is made from 24 lb. paper..Size: 10" x 13".Gummed closure with straight flap.Perfect for greeting cards, invitations, weddings or any announcement.Material: Paper.Envelope opening: Open end.Paper weight: 24 lbs..Finish: Smooth.JAM Paper® Open end envelope measuring 10" x 13" is perfectly sized for business correspondence, comes in white color and is sold as 25 per pack.

Price is  $17.09
Unit of measure 25/Pack
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LUX 80lbs. 10" x 13" Open End Envelopes, Midnight Black, 500/Box (87733-500) image 1
Item: 385926
Model: 87733-500

LUX Midnight black open end envelope can be sealed with glue and has a flap at the shorter side to avoid falling of things after opening. 10" x 13" Envelope is suitable for sending flat, bulky materials and is sold as 500 per box..10 x 13 Open End Envelopes perfect for organizing documents/distributing promotional materials/marketing materials/mailings/filings.Comes in Midnight Black.Sold 500 per box.Material: Paper.Collection: Black.Laser printer compatible.Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards.Flap is on the short side, helping to keep things from falling out after opening.Also called a "catalog" envelope, it actually comes in 39 sizes from tiny to huge, in white, traditional kraft, and array of colors for special impact.Closure: Moistenable glue.Opening: Open end flap.Also called a "catalog" envelope, it actually comes in 39 sizes from tiny to huge, in white, traditional Kraft, and array of colors for special impact.LUX Midnight black open end envelope measuring 10" x 13" has a paper weight of 80 lbs. and is ideal for sending flat, bulky materials or many small items like coins, catalogs and jumbo cards, sold as 500 per box.

Price is  $158.09
Unit of measure 500/Box
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LUX 9 x 12 Open End Envelopes, 250/Box, Gold Metallic (4894-07-250) image 1
Item: 1028617
Model: 4894-07-250

LUX™ Open end smooth envelope in gold metallic color has flap for easy filling with peel & press secure sealing type. Envelope measuring 9" x 12" is ideal for holding coins/catalogs/jumbo cards, sold as 250 per box..9 x 12 Open End Envelopes are perfect for sending documents/catalogs/direct mail/promotional material/brochures.Comes in Gold Metallic, 80lb. Text Paper.Peel & Press Sealing Method.250/Box.Closure: Peel & press™.Material: paper, paper weight: 80 lbs..Opening: Open end.Finish: Smooth.Laser and inkjet printer compatible.Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards.Flap is on the short side, helping to keep things from falling out after opening, also called a "catalog" envelope.It comes in various sizes from tiny to huge, in white, traditional Kraft, and array of colors for special impact.LUX™ Open end smooth envelope in gold metallic color measuring 9" x 12" is compatible with laser/inkjet printer and has a paper weight of 80 lbs for added strength/quality, sold as 250 per box.

Price is  $133.09
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LUX 70lbs. 4 1/8" x 9 1/2" #10 Open End Envelopes, Sunflower Yellow, 500/BX image 1
Item: 386917
Model: EX7716-12-500

LUX® Size 10 open end envelope in sunflower color is compatible with laser printers and features a moistenable flap for secure sealing. 4 1/8" x 9 1/2" Envelope of 70 lbs paper weight is sold as 500 per box..Sunflower.Size: #10 (4 1/8" x 9 1/2").Moistenable glue closure with open end flap.Used to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards.Material: Paper.Collection: Exclusive.Paper weight: 70 lbs..Laser printer compatible.Flap is on the short side, helping to keep things from falling out after opening.Also called a "catalog" envelope comes in 39 sizes.LUX® Size 10 open end envelop in sunflower color measuring 4 1/8" x 9 1/2" is perfect for storing bulky materials or multiple small items and is sold as 500 per box.

Price is  $214.59
Unit of measure 500/Box
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Staples EasyClose Booklet Envelopes, 6" x 9", White, 250/Box (SPL570225) image 1
Item: 570225
Model: ST50157

Give mail a professional appearance with these white wove side-opening booklet envelopes. The 28-pound wove construction protects contents from moisture, dirt, and damage, while the side-open design lets you easily insert and remove documents. These Staples EasyClose wove side-opening booklet envelopes are white, so dark text and images are easy to read..Booklet envelopes keep your documents flat in the mail.Envelope size: 6"H x 9"W.EasyClose peel-and-stick closures to speed up mail preparation time.Square flap with adhesive strip.Made of white wove paper.250 envelopes per box.Ensure that invoices, notices, and other documents arrive clean and undamaged with this 250-pack of Staples EasyClose 6 x 9-inch white wove side-opening booklet envelopes

Price is  $51.99
Unit of measure 250/Box
Next-Day Delivery by tomorrow
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6" x 8" Self-Sealing Fiberboard Mailer, Brown, 100/Carton (RM1K) image 1
Item: 447180
Model: RM1K

The 6" x 8" Kraft Flat Mailer features closure that is quick and easy to use. Mailer includes rigid chipboard construction that protects contents from bending and crushing. Sold 100 per case..6" x 8".QuickStrip closure is quick and easy to use - simply remove strip and press to close.Rigid chipboard construction protects contents from bending and crushing.Convenient tear-tab opens easily without harming contents.Lightweight mailers reduces postage costs.Staples Brand 100% Satisfaction Guaranteed.Sold 25 per case+AG1832:AL1832.Manufactured from .028 kraft chipboard..Peel and seal closure with pull tear-strip for easy opening..Light-weight to save on postage..No additional stiffeners needed..Sold 100 per case..Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $49.79
Unit of measure 100/Carton
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JAM Paper Open End Booklet Envelopes, Peel & Press, 9" x 12", Bright White, 1000/Pack (12328-1M) image 1
Item: 24578343
Model: 12328-1M

9 x 12 Booklet Envelopes are a professional way to send flat but bulky materials like pamphlets, brochures, sales literature, booklets, annual reports.Booklet Envelopes.9" x 12".White.Peel & Press Closure

Price is  $213.09
Unit of measure 1000/Pack
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About Flat Mailing Envelopes

Flat mailing envelopes are essential for securely shipping documents, photos, and other flat items without the risk of bending or damage. Designed to provide a professional appearance, these envelopes are ideal for both personal and business correspondence, ensuring that your items arrive in pristine condition.

Constructed from durable materials, flat mailing envelopes come in various sizes and styles to accommodate different needs. Many feature self-adhesive closures for easy sealing, making them a convenient choice for quick mailing tasks.

When selecting flat mailing envelopes, consider the size and thickness required for your items. Options range from small envelopes for photos to larger sizes suitable for documents, ensuring you find the perfect fit for your mailing needs.

Additionally, look for envelopes with rigid construction to provide extra protection during transit. Self-adhesive closures not only simplify the sealing process but also enhance security, making flat mailing envelopes a reliable choice for sending important materials.

What are flat mailing envelopes used for?

  • Flat mailing envelopes are primarily used for sending documents, photographs, and other flat items securely. They protect contents from bending and damage during shipping, making them ideal for professional and personal use.

What sizes do flat mailing envelopes come in?

  • Flat mailing envelopes are available in a variety of sizes, ranging from small options for photos to larger envelopes for documents and brochures. This variety ensures that you can find the right size for your specific mailing needs.

Are flat mailing envelopes waterproof?

  • While many flat mailing envelopes are made from durable materials, not all are waterproof. It's important to check the specifications of each envelope to ensure it meets your needs for moisture protection during transit.

Can flat mailing envelopes be reused?

  • Flat mailing envelopes can be reused if they are still in good condition and the previous address label is removed or covered. However, it's best to use new envelopes for important or professional mailings to ensure a clean presentation.

Do flat mailing envelopes require additional postage?

  • Flat mailing envelopes typically require standard postage, but it's essential to check with your postal service for specific guidelines. The weight and dimensions of the envelope can affect postage rates, so ensure compliance to avoid additional charges.

What is the difference between flat and padded mailing envelopes?

  • Flat mailing envelopes are designed for sending documents and flat items without cushioning, while padded mailing envelopes include protective padding to safeguard fragile items. Choose based on the level of protection needed for your contents.