18" x 12" x 6" Deluxe Literature Mailers, 25/Bundle (MFL18126)~#|#~sp21847725_sc718" x 12" x 6" Deluxe Literature Mailers, 25/Bundle (MFL18126)~#|#~m002123445_sc7
Item: 1578411
Model: MFL18126
No reviews yet
Price is $196.19
Unit of measure 25/Bundle
Free delivery by Wed, Aug 20
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Literature Mailers, 17 1/8" x 11 1/8" x 5", White, 50/Bundle (M17115)~#|#~sp21847600_sc7Literature Mailers, 17 1/8" x 11 1/8" x 5", White, 50/Bundle (M17115)~#|#~m004078712_sc7
Item: 949041
Model: M17115
Price is $215.19
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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9 5/8" x 6 5/8" x 1 1/4" Easy-Fold Mailers, Kraft, 50/Bundle (M961K)~#|#~sp21847549_sc79 5/8" x 6 5/8" x 1 1/4" Easy-Fold Mailers, Kraft, 50/Bundle (M961K)~#|#~s0537497_sc7
Item: 947466
Model: M961K
Price is $51.59
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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SI Products Corrugated Mailers, 6" x 4" x 2", White, 50/Bundle (M642)SI Products Corrugated Mailers, 6" x 4" x 2", White, 50/Bundle (M642)
Item: 558941
Model: M642
Price is $33.09
Unit of measure 50/Carton
Delivery by Wed, Aug 20
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SI Products Corrugated Mailers, 6" x 4" x 3", White, 50/Bundle (M643)~#|#~sp21847504_sc7SI Products Corrugated Mailers, 6" x 4" x 3", White, 50/Bundle (M643)~#|#~m003576055_sc7
Item: 559027
Model: M643
Price is $38.49
Unit of measure 50/Bundle
Free Next-Day eligible by tomorrow
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Over 30
White Corrugated Mailers, 12-1/8" x 9-1/4" x 2", 50/Bundle (M1292)White Corrugated Mailers, 12-1/8" x 9-1/4" x 2", 50/Bundle (M1292)
Item: 414168
Model: M1292
Price is $64.89
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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4" x 3" x 3" Corrugated Mailers, 50/Bundle (M433)~#|#~sp21847416_sc74" x 3" x 3" Corrugated Mailers, 50/Bundle (M433)~#|#~m006879179_sc7
4" x 3" x 3" Corrugated Mailers, 50/Bundle (M433) is New at Staples
Item: 558902
Model: M433
No reviews yet
Price is $34.39
Unit of measure 50/Bundle
Delivery by Wed, Aug 20
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Over 30
Partners Brand Corrugated Mailers, 9" x 6 1/2" x 2 3/4", White, 50/BundlePartners Brand Corrugated Mailers, 9" x 6 1/2" x 2 3/4", White, 50/Bundle
Item: 414173
Model: M962
Price is $65.19
Unit of measure 50/Carton
Free delivery by Wed, Aug 20
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Over 30
Quill Brand 6"x2"x2" Corrugated Mailers, White, 50/Bundle (M622)~#|#~s0025615_sc7
Item: 426748
Model: M622
No reviews yet
Price is $24.69
Unit of measure 50/Bundle
Delivery by Wed, Aug 20
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Over 30
12" x 10" x 4" Literature Mailers, 50/Bundle (ML12104K)~#|#~sp21847920_sc712" x 10" x 4" Literature Mailers, 50/Bundle (ML12104K)~#|#~m002123457_sc7
Item: 1578494
Model: ML12104K
No reviews yet
Price is $149.49
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
7" x 5" x 2" Corrugated Mailers, 50/Bundle (M752)~#|#~sp21847617_sc77" x 5" x 2" Corrugated Mailers, 50/Bundle (M752)~#|#~s0025615_sc7
Item: 831815
Model: M752
Price is $38.49
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
18" x 12" x 4", Deluxe Literature Mailers , White,25/Bundle (MFL18124)~#|#~sp21847474_sc718" x 12" x 4", Deluxe Literature Mailers , White,25/Bundle (MFL18124)~#|#~s0350210_sc7
Item: 630472
Model: MFL18124
Price is $111.59
Unit of measure 25/Bundle
Free delivery by Wed, Aug 20
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Over 30
12" x 9" x 2" Corrugated Mailers, 50/Bundle (MLR1292)~#|#~sp21847819_sc712" x 9" x 2" Corrugated Mailers, 50/Bundle (MLR1292)~#|#~m001911382_sc7
Item: 1499824
Model: MLR1292
Price is $156.89
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
Partners Brand Jumbo Mailers, 40" x 30" x 6", Kraft, 20/Bundle (M40306)~#|#~sp21848001_sc7Partners Brand Jumbo Mailers, 40" x 30" x 6", Kraft, 20/Bundle (M40306)~#|#~m004078429_sc7
Item: 2301493
Model: M40306
No reviews yet
Price is $260.39
Unit of measure 20/Bundle
Free delivery by Wed, Aug 20
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Over 30
Deluxe Literature Mailers, 10" x 10" x 4", White, 50/Bundle (MFL10104)~#|#~sp21847703_sc7Deluxe Literature Mailers, 10" x 10" x 4", White, 50/Bundle (MFL10104)~#|#~s0537481_sc7
Item: 949046
Model: MFL10104
No reviews yet
Price is $165.09
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
Corrugated Mailers, 10" x 6" x 4", White, 50/Bundle (M1064)~#|#~sp21847657_sc7Corrugated Mailers, 10" x 6" x 4", White, 50/Bundle (M1064)~#|#~m006879187_sc7
Item: 947412
Model: M1064
Price is $95.39
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
10" x 6" x 6" Corrugated Mailers, 50/Bundle (M1066)~#|#~sp21847626_sc710" x 6" x 6" Corrugated Mailers, 50/Bundle (M1066)~#|#~s0350211_sc7
Item: 831824
Model: M1066
No reviews yet
Price is $96.59
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
Partners Brand Corrugated Mailers, 11 1/8" x 8 3/4" x 2 5/16", White, 50/Bundle (M1182D)Partners Brand Corrugated Mailers, 11 1/8" x 8 3/4" x 2 5/16", White, 50/Bundle (M1182D)
Item: 414165
Model: M1182D
Price is $80.69
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
Expandable Photo Mailer Envelopes with Self-Adhesive Closure, 17 x 14 x 1, White, Sold Individually (48906708)
Item: 1433625
Model: 48906708
No reviews yet
Price is $8.49
Delivery by Mon, Aug 18
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Over 30
Corrugated Mailers, 9" x 5" x 4", White, 50/Bundle (M954)~#|#~sp21847547_sc7Corrugated Mailers, 9" x 5" x 4", White, 50/Bundle (M954)~#|#~m004078729_sc7
Item: 947464
Model: M954
No reviews yet
Price is $111.59
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
Easy-Fold Mailers, 12 1/2" x 12 1/2" x 2 1/2", Kraft, 50/Bundle (M12122K)~#|#~sp21847514_sc7Easy-Fold Mailers, 12 1/2" x 12 1/2" x 2 1/2", Kraft, 50/Bundle (M12122K)~#|#~s0537497_sc7
Item: 947423
Model: M12122K
Price is $118.29
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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20" x 16" x 1/4" - White Jumbo Fold-Over Mailer, 20/Bundle~#|#~sp21847678_sc720" x 16" x 1/4" - White Jumbo Fold-Over Mailer, 20/Bundle~#|#~s0537513_sc7
Item: 948951
Model: M201614
Price is $48.59
Unit of measure 20/Bundle
Free delivery by Wed, Aug 20
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Over 30
Partners Brand Literature Mailers, 9" x 6 1/2" x 1 3/4", White, 50/Bundle (ML961)~#|#~sp21847582_sc7Partners Brand Literature Mailers, 9" x 6 1/2" x 1 3/4", White, 50/Bundle (ML961)~#|#~s0537476_sc7
Item: 947500
Model: ML961
Price is $47.39
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
Corrugated Mailers, 8" x 2" x 2", White, 50/Bundle (M822)~#|#~sp21847534_sc7Corrugated Mailers, 8" x 2" x 2", White, 50/Bundle (M822)~#|#~m004078734_sc7
Item: 947451
Model: M822
Price is $32.69
Unit of measure 50/Bundle
Delivery by Wed, Aug 20
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Over 30
SI Products Corrugated Mailers, 10" x 4" x 4", White, 50/Bundle (M1044)~#|#~sp21847469_sc7SI Products Corrugated Mailers, 10" x 4" x 4", White, 50/Bundle (M1044)~#|#~m004078737_sc7
SI Products Corrugated Mailers, 10" x 4" x 4", White, 50/Bundle (M1044) is New at Staples
Item: 558964
Model: M1044
Price is $66.79
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
The Packaging Wholesalers 5-13/16" x 5" x 1/2" CD Jewel Case Corrugated Mailer, Holds 1 CD~#|#~s0745304_sc7
Item: 2647435
Model: MLRCD
No reviews yet
Price is $61.69
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
Corrugated Carrying Cases, 20" x 11 3/8" x 5 1/2", White, 10/Bundle (MCC5)~#|#~s0537487_sc7
Item: 946854
Model: MCC5
Price is $78.79
Unit of measure 10/Bundle
Free delivery by Wed, Aug 20
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Over 30
10" x 2" x 2" Corrugated Mailers, 50/Bundle (M1022)~#|#~sp21847464_sc710" x 2" x 2" Corrugated Mailers, 50/Bundle (M1022)~#|#~m004078747_sc7
10" x 2" x 2" Corrugated Mailers, 50/Bundle (M1022) is New at Staples
Item: 558959
Model: M1022
No reviews yet
Price is $36.69
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
Corrugated Mailers, 7" x 7" x 4", White, 50/Bundle (M774)~#|#~sp21847672_sc7Corrugated Mailers, 7" x 7" x 4", White, 50/Bundle (M774)~#|#~m006879221_sc7
Item: 947447
Model: M774
No reviews yet
Price is $110.59
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
Corrugated Mailers, 6" x 6" x 3", Kraft, 50/Bundle (M663K)~#|#~sp21847963_sc7Corrugated Mailers, 6" x 6" x 3", Kraft, 50/Bundle (M663K)~#|#~m004078728_sc7
Item: 2301173
Model: M663K
No reviews yet
Price is $94.79
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
Partners Brand Corrugated Mailers, 15 1/8" x 11 1/8" x 2", White, 50/Bundle (MIBMS500)Partners Brand Corrugated Mailers, 15 1/8" x 11 1/8" x 2", White, 50/Bundle (MIBMS500)
Item: 414171
Model: MIBMS500
Price is $94.19
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
12 1/8" x 9 1/8" x 1" Easy-Fold Mailers, Kraft, 50/Bundle (M1291K)~#|#~sp21847515_sc712 1/8" x 9 1/8" x 1" Easy-Fold Mailers, Kraft, 50/Bundle (M1291K)~#|#~s0537497_sc7
Item: 947424
Model: M1291K
Price is $65.09
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
12 1/8 " x 9 1/4" x 4" Deluxe Literature Mailers, 50/Bundle (MFL1294)~#|#~sp21847639_sc712 1/8 " x 9 1/4" x 4" Deluxe Literature Mailers, 50/Bundle (MFL1294)~#|#~s0350209_sc7
Item: 833122
Model: MFL1294
No reviews yet
Price is $131.29
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
10" x 5" x 5" Corrugated Mailers, 50/Bundle (M1055)~#|#~sp21847499_sc710" x 5" x 5" Corrugated Mailers, 50/Bundle (M1055)~#|#~m004078737_sc7
Item: 831793
Model: M1055
Price is $97.39
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
Literature Mailers, 9" x 6 1/2" x 1 3/4", Kraft, 50/Bundle (ML961K)~#|#~sp21847583_sc7Literature Mailers, 9" x 6 1/2" x 1 3/4", Kraft, 50/Bundle (ML961K)~#|#~s0537482_sc7
Item: 947501
Model: ML961K
Price is $52.89
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
5" x 3" x 1" Corrugated Mailers, 50/Bundle (M531)~#|#~sp21847951_sc75" x 3" x 1" Corrugated Mailers, 50/Bundle (M531)~#|#~m002123432_sc7
Item: 1581227
Model: M531
No reviews yet
Price is $46.19
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
Literature Mailers, 11 3/4" x 10 3/4" x 2 1/4", Kraft, 50/Bundle (M3RBK)~#|#~sp21847523_sc7Literature Mailers, 11 3/4" x 10 3/4" x 2 1/4", Kraft, 50/Bundle (M3RBK)~#|#~s0537482_sc7
Item: 947436
Model: M3RBK
Price is $102.09
Unit of measure 50/Bundle
Free delivery by Wed, Aug 20
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Over 30
20" x 16" x 1" - White Jumbo Fold-Over Mailer, 20/Bundle~#|#~sp21847640_sc720" x 16" x 1" - White Jumbo Fold-Over Mailer, 20/Bundle~#|#~s0537513_sc7
Item: 947087
Model: M20161
No reviews yet
Price is $58.89
Unit of measure 20/Bundle
Free delivery by Wed, Aug 20
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Over 30
6 1/2" x 3 1/4" x 1 1/4" Corrugated Mailers, 50/Bundle (MRx 1x L)~#|#~sp21847428_sc76 1/2" x 3 1/4" x 1 1/4" Corrugated Mailers, 50/Bundle (MRx 1x L)~#|#~m006879188_sc7
6 1/2" x 3 1/4" x 1 1/4" Corrugated Mailers, 50/Bundle (MRx 1x L) is New at Staples
Item: 558914
Model: MRX1XL
Price is $24.29
Unit of measure 50/Bundle
Delivery by Wed, Aug 20
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Stay-Flat Photo Mailer Stiff Envelopes with Self-Adhesive Closure, 6 x 6, White, Sold Individually (73286)
Item: 1435090
Model: 73286
Price is $5.59
Delivery by Mon, Aug 18
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Protect your packages from the rigors of shipping by sending them in corrugated mailers. These mailers are boxes and large envelopes made of thick fiberboards. The walls of a corrugated mailer have a fluted inner board covered by one or two flat linerboards. Flutes are S-shaped arches that give a corrugated box its impressive structural strength. Staples® offers a wide selection of these sturdy, protective shipping boxes and envelopes.

Choosing the Right Corrugated Mailer for Your Package
The size of the item you wish to send will determine the type of corrugated mailer you need. You can send slim and small books as well as magazines, photos, and letters in corrugated envelopes. These corrugated document mailers ship flat and are stiff enough to get printed pages to their destinations without creases and are a strong alternative to plain window envelopes. For bigger items, you need larger mailers like corrugated boxes. These are ideal for shipping fragile items and bulky goods. They come in different sizes and styles. Their fluted walls provide ample stacking strength while insulating their contents from moisture, extreme temperatures, and physical damage.

Consider Board Strength When Comparing Corrugated Mailers
Manufacturers use different tests to determine the strengths of corrugated boxes. The most popular are the burst test and ECT or edge crust test. The wall thickness of a box determines its ECT score and burst strength. These then determine the maximum load capacity of the box. A single-walled corrugated mailer has a fluted layer between two linerboards. Boxes with burst strength ratings between 200 and 275 and ECT values between 23 and 55 pounds per square inch fall in this category. Double-walled mailers have two corrugated layers. They are stronger and offer better crush resistance. They can ship heavier items and come in strengths ranging from 200 to 600 pounds while scoring 42 to 82 on edge crush tests. Triple-walled boxes have three layers and can handle significantly higher weights. They are usually large containers for shipping heavy loads stacked on pallets.

What Is the Difference Between Corrugated and Cardboard Boxes?
While corrugated mailers feature fiberboard construction, cardboard boxes are made of paperboard. Regardless of its thickness, cardboard is a paper product while manufacturers use wood chips and shavings for corrugated boxes. A cardboard box also does not have an intermediate layer or fluted core.

What Are the Different Types of Corrugated Box Fluting?
There are five common types of corrugated box fluting designated by the letters: A, B, C, E, and F. An A-flute box has 30 to 36 flutes per linear foot with each one measuring 0.188 inches. B-flute boxes have 44 to 50 flutes that are 0.125 inches thick. Boxes with C flutes are the most common. Their flutes are intermediate in density and thickness between A and B flutes. E and F-flute boxes have more flutes but in much smaller sizes. Pizza boxes, sandwich packaging, and corrugated document mailers fall into these categories.

Are Linerboards Made of Chipboard?
No. Linerboards are usually made of recycled paper and kraft paperboard. Those made of kraft paper often appear brown. They can also come in white if made of bleached kraft paper. Linerboards do come in other colors besides white and brown.