Literature Mailers, 13" x 13" x 3", Kraft, 50/Bundle (ML13133K)~#|#~sp21847578_sc7Literature Mailers, 13" x 13" x 3", Kraft, 50/Bundle (ML13133K)~#|#~s0537482_sc7
Item: 947496
Model: ML13133K
Price is $132.89
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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Corrugated Mailers, 13 1/2" x 3 1/2" x 3 1/2", Kraft, 50/Bundle (MLRBLK)~#|#~sp23136197_sc7
Item: 24323808
Model: MLRBLK
No reviews yet
Price is $60.99
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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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 Fri, Sep 26
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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 $45.99
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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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 Fri, Sep 26
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24" x 2" x 2" Corrugated Mailers, 50/Bundle (M2422)~#|#~sp21847890_sc724" x 2" x 2" Corrugated Mailers, 50/Bundle (M2422)~#|#~m002123430_sc7
Item: 1578453
Model: M2422
Price is $59.39
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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Quill Brand 6"x2"x2" Corrugated Mailers, White, 50/Bundle (M622)~#|#~s0025615_sc7
Item: 426748
Model: M622
No reviews yet
Price is $21.99
Unit of measure 50/Bundle
Delivery by Fri, Sep 26
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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 Fri, Sep 26
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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 $214.69
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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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 Fri, Sep 26
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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 $145.39
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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Over 30
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 Fri, Sep 26
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Over 30
7 1/2" x 3 1/2" x 3 1/4" Corrugated Mailers, 50/Bundle (MIBM5C)~#|#~sp21847454_sc77 1/2" x 3 1/2" x 3 1/4" Corrugated Mailers, 50/Bundle (MIBM5C)~#|#~s0350211_sc7
7 1/2" x 3 1/2" x 3 1/4" Corrugated Mailers, 50/Bundle (MIBM5C) is New at Staples
Item: 558946
Model: MIBM5C
Price is $43.89
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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Literature Mailers, 11 1/8" x 8 3/4" x 1", White, 50/Bundle (ML1181)~#|#~sp21847692_sc7Literature Mailers, 11 1/8" x 8 3/4" x 1", White, 50/Bundle (ML1181)~#|#~m004078717_sc7
Item: 949057
Model: ML1181
Price is $72.29
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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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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8" x 4" x 2" Corrugated Mailers, Kraft, 50/Bundle (M842K)~#|#~sp21847857_sc78" x 4" x 2" Corrugated Mailers, Kraft, 50/Bundle (M842K)~#|#~m001911365_sc7
Item: 1499865
Model: M842K
Price is $49.09
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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White Deluxe Literature Mailer, 14" x 3-3/4" x 2-3/4", 50/Bundle~#|#~sp21847407_sc7White Deluxe Literature Mailer, 14" x 3-3/4" x 2-3/4", 50/Bundle~#|#~s0059940_sc7
Item: 426621
Model: MFLRSC
No reviews yet
Price is $56.59
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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Over 30
11 1/8" x 8 5/8" x 1" - White Easy-Fold Mailer, 50/Bundle~#|#~sp21847686_sc711 1/8" x 8 5/8" x 1" - White Easy-Fold Mailer, 50/Bundle~#|#~s0537492_sc7
Item: 949026
Model: M1181
Price is $53.99
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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Over 30
7" x 3" x 3" Corrugated Mailers, 50/Bundle (M733)~#|#~sp21847437_sc77" x 3" x 3" Corrugated Mailers, 50/Bundle (M733)~#|#~m006879194_sc7
7" x 3" x 3" Corrugated Mailers, 50/Bundle (M733) is New at Staples
Item: 558925
Model: M733
Price is $34.59
Unit of measure 50/Bundle
Delivery by Fri, Sep 26
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Over 30
SI Products 7" x 4" x 2" Corrugated Mailers, 50/Bundle (M742)~#|#~sp21847505_sc7SI Products 7" x 4" x 2" Corrugated Mailers, 50/Bundle (M742)~#|#~m004078730_sc7
Item: 559028
Model: M742
Price is $54.19
Unit of measure 50/Bundle
Free delivery by Tue, Sep 23
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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 Fri, Sep 26
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Corrugated Mailers, 12" x 9" x 4", White, 50/Bundle (MLR1294)~#|#~sp21847764_sc7Corrugated Mailers, 12" x 9" x 4", White, 50/Bundle (MLR1294)~#|#~m004078736_sc7
Item: 2301167
Model: MLR1294
No reviews yet
Price is $188.89
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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SI Products Deluxe Literature Mailers, 15 1/8" x 11 1/8" x 4", White, 50/Bundle (BSMFL15114)~#|#~sp21847490_sc7SI Products Deluxe Literature Mailers, 15 1/8" x 11 1/8" x 4", White, 50/Bundle (BSMFL15114)~#|#~s0350209_sc7
Item: 696608
Model: MFL15114
No reviews yet
Price is $178.99
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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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 Fri, Sep 26
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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 Wed, Sep 24
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White Corrugated Mailers, 11" x 6-1/2" x 2-3/4", 50/Bundle~#|#~sp21847302_sc7White Corrugated Mailers, 11" x 6-1/2" x 2-3/4", 50/Bundle~#|#~m003575078_sc7
Item: 420688
Model: M1162
Price is $75.59
Unit of measure 50/Carton
Free delivery by Fri, Sep 26
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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 Fri, Sep 26
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Over 30
Corrugated Mailers, 6" x 5" x 2", White, 50/Bundle (M652)~#|#~sp21847527_sc7Corrugated Mailers, 6" x 5" x 2", White, 50/Bundle (M652)~#|#~m004078725_sc7
Item: 947440
Model: M652
Price is $68.99
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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Literature Mailers, 10" x 9" x 3", White, 50/Bundle (ML1093)~#|#~sp21847751_sc7Literature Mailers, 10" x 9" x 3", White, 50/Bundle (ML1093)~#|#~m004078713_sc7
Item: 2301154
Model: ML1093
No reviews yet
Price is $128.69
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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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 $102.19
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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Over 30
Corrugated Mailers, 8" x 6" x 3", White, 50/Bundle (M863)~#|#~sp21847614_sc7Corrugated Mailers, 8" x 6" x 3", White, 50/Bundle (M863)~#|#~m004078730_sc7
Item: 831808
Model: M863
Price is $89.89
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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Over 30
Partners Brand Corrugated Mailers, 6" x 4" x 1", White, 50/Bundle (M641)~#|#~sp21847887_sc7Partners Brand Corrugated Mailers, 6" x 4" x 1", White, 50/Bundle (M641)~#|#~m002123432_sc7
Buy more save more of Partners Brand Corrugated Mailers, 6" x 4" x 1", White, 50/Bundle (M641)
Item: 1578450
Model: M641
Price is $43.69
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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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 $78.19
Unit of measure 10/Bundle
Free delivery by Fri, Sep 26
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Over 30
4" x 3" x 2" Corrugated Mailers, 50/Bundle (M432)~#|#~sp21847415_sc74" x 3" x 2" Corrugated Mailers, 50/Bundle (M432)~#|#~m006879178_sc7
Item: 558901
Model: M432
No reviews yet
Price is $26.09
Unit of measure 50/Bundle
Delivery by Fri, Sep 26
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Over 30
4 3/8" x 4 3/8" x 2" Corrugated Mailers, 50/Bundle (MLR1)~#|#~sp21847420_sc74 3/8" x 4 3/8" x 2" Corrugated Mailers, 50/Bundle (MLR1)~#|#~m006879182_sc7
4 3/8" x 4 3/8" x 2" Corrugated Mailers, 50/Bundle (MLR1) is New at Staples
Item: 558906
Model: MLR1
No reviews yet
Price is $38.59
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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Over 30
8" x 3" x 2" Corrugated Mailers, 50/Bundle (M832)~#|#~sp21847455_sc78" x 3" x 2" Corrugated Mailers, 50/Bundle (M832)~#|#~m004078734_sc7
8" x 3" x 2" Corrugated Mailers, 50/Bundle (M832) is New at Staples
Item: 558947
Model: M832
Price is $35.39
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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Over 30
8" x 7" x 4" Corrugated Mailers, 50/Bundle (M874)~#|#~sp21847728_sc78" x 7" x 4" Corrugated Mailers, 50/Bundle (M874)~#|#~m002123440_sc7
Item: 1578441
Model: M874
Price is $116.59
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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Over 30
SI Products Corrugated Mailers, 7" x 5" x 4", White, 50/Bundle (M754)~#|#~sp21847452_sc7SI Products Corrugated Mailers, 7" x 5" x 4", White, 50/Bundle (M754)~#|#~m004078733_sc7
Item: 558944
Model: M754
Price is $85.79
Unit of measure 50/Bundle
Free delivery by Mon, Sep 22
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12" x 10 1/2" x 2" Easy-Fold Mailers, 50/Bundle (M12102BFK)~#|#~sp21847939_sc712" x 10 1/2" x 2" Easy-Fold Mailers, 50/Bundle (M12102BFK)~#|#~m002123417_sc7
Item: 1578513
Model: M12102BFK
Price is $102.49
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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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 $38.39
Unit of measure 50/Bundle
Free delivery by Fri, Sep 26
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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.