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 $134.59
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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SI Products Deluxe Literature Mailers, 12 1/8" x 9 1/4" x 2", White, 50/Bundle (MFL1292)~#|#~sp21847606_sc7SI Products Deluxe Literature Mailers, 12 1/8" x 9 1/4" x 2", White, 50/Bundle (MFL1292)~#|#~s0350210_sc7
Item: 831800
Model: MFL1292
Price is $95.49
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
Easy-Fold Mailers, 12 1/8" x 9 1/8" x 3", Kraft, 50/Bundle (M1293BFK)~#|#~sp21847665_sc7Easy-Fold Mailers, 12 1/8" x 9 1/8" x 3", Kraft, 50/Bundle (M1293BFK)~#|#~s0537497_sc7
Item: 947426
Model: M1293BFK
No reviews yet
Price is $109.29
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
Corrugated Mailers, 14" x 6" x 4", White, 50/Bundle (M1464)~#|#~sp21847979_sc7Corrugated Mailers, 14" x 6" x 4", White, 50/Bundle (M1464)~#|#~m004078734_sc7
Item: 2301194
Model: M1464
No reviews yet
Price is $106.29
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
17" x 11" x 2 1/2" Literature Mailers, 25/Bundle (ML17112K)~#|#~sp21847899_sc717" x 11" x 2 1/2" Literature Mailers, 25/Bundle (ML17112K)~#|#~m002123467_sc7
Item: 1578471
Model: ML17112K
Price is $68.99
Unit of measure 25/Bundle
Free delivery by Fri, Nov 07
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Over 30
SI Products Corrugated Mailers, 8" x 4" x 4", White, 50/Bundle (M844)~#|#~sp21847459_sc7SI Products Corrugated Mailers, 8" x 4" x 4", White, 50/Bundle (M844)~#|#~m004078737_sc7
Item: 558952
Model: M844
Price is $47.79
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
Outside Tuck Mailers, 7 5/8" x 6" x 5 7/16", White, 25/Bundle (MEZ765)~#|#~s0537484_sc7
Item: 947271
Model: MEZ765
No reviews yet
Price is $71.39
Unit of measure 25/Bundle
Free delivery by Fri, Nov 07
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Over 30
Corrugated Mailers, 9" x 8" x 5", White, 50/Bundle (M985)~#|#~sp21847769_sc7Corrugated Mailers, 9" x 8" x 5", White, 50/Bundle (M985)~#|#~m004078716_sc7
Item: 2301171
Model: M985
No reviews yet
Price is $143.49
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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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 $96.59
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
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 $136.29
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
Partners Brand Easy-Fold Mailers, 9 5/8" x 6 5/8" x 2 1/2", White, 50/Bundle (M962BF)~#|#~sp21847550_sc7Partners Brand Easy-Fold Mailers, 9 5/8" x 6 5/8" x 2 1/2", White, 50/Bundle (M962BF)~#|#~s0537492_sc7
Item: 947467
Model: M962BF
Price is $82.99
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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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
Item: 558914
Model: MRX1XL
Price is $24.89
Unit of measure 50/Bundle
Delivery by Fri, Nov 07
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Over 30
Literature Mailers, 10" x 8" x 3", White, 50/Bundle (ML1083)~#|#~sp21847754_sc7Literature Mailers, 10" x 8" x 3", White, 50/Bundle (ML1083)~#|#~m004078738_sc7
Item: 2301157
Model: ML1083
No reviews yet
Price is $88.39
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
Literature Mailers, 8" x 7" x 3", White, 50/Bundle (ML873)~#|#~sp21847733_sc7Literature Mailers, 8" x 7" x 3", White, 50/Bundle (ML873)~#|#~m004078742_sc7
Item: 2301079
Model: ML873
No reviews yet
Price is $94.99
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
SI Products Corrugated Mailers, 6 1/2" x 4 1/2" x 2 1/2", White, 50/Bundle (MRx 5x )~#|#~sp21847430_sc7SI Products Corrugated Mailers, 6 1/2" x 4 1/2" x 2 1/2", White, 50/Bundle (MRx 5x )~#|#~m006879189_sc7
Item: 558917
Model: MRX5X
Price is $36.09
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
36" x 24" x 1/4" - White Jumbo Fold-Over Mailer, 20/Bundle~#|#~sp21847650_sc736" x 24" x 1/4" - White Jumbo Fold-Over Mailer, 20/Bundle~#|#~s0537513_sc7
Item: 947097
Model: M362414
No reviews yet
Price is $131.19
Unit of measure 20/Bundle
Free delivery by Fri, Nov 07
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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
Item: 558964
Model: M1044
Price is $61.59
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
10L X 4-7/8W X 3-3/4"H Corrugated Mailer, White, 50/Bundle (BSMLR6)~#|#~s0350211_sc7
Item: 425271
Model: MLR6
No reviews yet
Price is $60.29
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
Literature Mailers, 9" x 9" x 4", White, 50/Bundle (ML994)~#|#~sp21847952_sc7Literature Mailers, 9" x 9" x 4", White, 50/Bundle (ML994)~#|#~m004078708_sc7
Item: 2301071
Model: ML994
No reviews yet
Price is $138.19
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
7" x 5" x 5" Corrugated Mailers, 50/Bundle (M755)~#|#~sp21847616_sc77" x 5" x 5" Corrugated Mailers, 50/Bundle (M755)~#|#~m004078733_sc7
Item: 831813
Model: M755
Price is $80.49
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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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 $266.19
Unit of measure 20/Bundle
Free delivery by Fri, Nov 07
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Over 30
4" x 4" x 1" Corrugated Mailers, 50/Bundle (M441)~#|#~sp21847618_sc74" x 4" x 1" Corrugated Mailers, 50/Bundle (M441)~#|#~m006879176_sc7
Item: 831816
Model: M441
Price is $47.69
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
11.1" x 8.7" x 4" Literature Mailer, White, 50/Bundle (M1184)~#|#~sp21847291_sc711.1" x 8.7" x 4" Literature Mailer, White, 50/Bundle (M1184)~#|#~CDACAC05-B1CB-46C1-8591ABCED1F2ADAB_sc7
Item: 414166
Model: M1184
Price is $100.49
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
Partners Brand Corrugated Mailers, 10" x 7" x 4", White, 50/Bundle (M1074)~#|#~sp21847992_sc7Partners Brand Corrugated Mailers, 10" x 7" x 4", White, 50/Bundle (M1074)~#|#~m004078716_sc7
Item: 2301207
Model: M1074
Price is $117.49
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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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
Item: 558906
Model: MLR1
No reviews yet
Price is $39.59
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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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 $70.79
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
Partners Brand Deluxe Literature Mailers, 10" x 10" x 4", Kraft, 50/Bundle (MFL10104K)~#|#~sp21847826_sc7Partners Brand Deluxe Literature Mailers, 10" x 10" x 4", Kraft, 50/Bundle (MFL10104K)~#|#~m001911368_sc7
Item: 1499831
Model: MFL10104K
No reviews yet
Price is $169.79
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
17 1/8" x 11 1/8" x 3", Deluxe Literature Mailers, White, 50/Bundle (MFL17113)~#|#~sp21847712_sc717 1/8" x 11 1/8" x 3", Deluxe Literature Mailers, White, 50/Bundle (MFL17113)~#|#~s0537481_sc7
Item: 949055
Model: MFL17113
No reviews yet
Price is $164.19
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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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 $82.79
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
Corrugated Mailers, 6 1/2" x 4 7/8" x 2 5/8" Kraft, 50/Bundle (MRX6XK)~#|#~sp23136200_sc7
Item: 24323803
Model: MRX6XK
No reviews yet
Price is $57.49
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
4" x 3" x 2" Corrugated Mailers, 50/Bundle (M432K)~#|#~C990772E-50D3-41B0-83E65169EDA27A76_sc74" x 3" x 2" Corrugated Mailers, 50/Bundle (M432K)~#|#~m001911352_sc7
Item: 1499859
Model: M432K
Price is $32.99
Unit of measure 50/Bundle
Delivery by Fri, Nov 07
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Over 30
6" x 6" x 2" Corrugated Mailers, 50/Bundle (M662K)~#|#~sp21847845_sc76" x 6" x 2" Corrugated Mailers, 50/Bundle (M662K)~#|#~m001911361_sc7
Item: 1499853
Model: M662K
Price is $81.69
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
1
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Over 30
Partners Brand Jumbo Mailers, 48" x 36" x 3", Kraft, 20/Bundle (M48363)~#|#~sp21847999_sc7Partners Brand Jumbo Mailers, 48" x 36" x 3", Kraft, 20/Bundle (M48363)~#|#~m004078429_sc7
Item: 2301491
Model: M48363
No reviews yet
Price is $305.69
Unit of measure 20/Bundle
Free delivery by Fri, Nov 07
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Over 30
18" x 12" x 8" Kraft Corrugated Boxes, White, 25/Bundle (18128W)~#|#~m002123399_sc7
Item: 1578429
Model: 18128W
No reviews yet
Price is $71.79
Unit of measure 25/Bundle
Free delivery by Fri, Nov 07
1
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Over 30
12" x 12" x 2" Deluxe Literature Mailers, 50/Bundle (MFL12122K)~#|#~sp21847716_sc712" x 12" x 2" Deluxe Literature Mailers, 50/Bundle (MFL12122K)~#|#~m001911370_sc7
Item: 1499849
Model: MFL12122K
No reviews yet
Price is $135.99
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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Over 30
Corrugated Mailers, 7" x 3" x 2", Kraft, 50/Bundle (M732K)~#|#~sp23136178_sc7
Item: 24323831
Model: M732K
No reviews yet
Price is $52.99
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
1
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Over 30
5" x 4" x 3" Corrugated Mailers, 50/Bundle (M543K)~#|#~sp21847807_sc75" x 4" x 3" Corrugated Mailers, 50/Bundle (M543K)~#|#~m000957757_sc7
Item: 1004942
Model: M543K
No reviews yet
Price is $56.99
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
1
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Over 30
Literature Mailers, 30" x 24" x 4", White, 25/Bundle (ML30244)~#|#~sp21847994_sc7Literature Mailers, 30" x 24" x 4", White, 25/Bundle (ML30244)~#|#~m004078718_sc7
Item: 2301337
Model: ML30244
No reviews yet
Price is $337.99
Unit of measure 25/Bundle
Free delivery by Fri, Nov 07
1
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Over 30
8" x 6" x 3" Corrugated Mailers, 50/Bundle (M863K)~#|#~sp21847856_sc78" x 6" x 3" Corrugated Mailers, 50/Bundle (M863K)~#|#~m001911366_sc7
Item: 1499864
Model: M863K
No reviews yet
Price is $80.19
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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7-1/8" x 5" x 3" Corrugated Mailers, White, 50/Bundle (MLR3)~#|#~sp21847453_sc77-1/8" x 5" x 3" Corrugated Mailers, White, 50/Bundle (MLR3)~#|#~m004078746_sc7
Item: 558945
Model: MLR3
Price is $54.19
Unit of measure 50/Bundle
Free delivery by Fri, Nov 07
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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.