16" x 12" x 6" Literature Mailer, White, 25/Bundle (MFL16126)~#|#~508D2D9F-FA56-4DF4-9F88CA2DC4A7F387_sc716" x 12" x 6" Literature Mailer, White, 25/Bundle (MFL16126)~#|#~CDBFCCBC-DDED-43B8-8E3BE6A6EEF6E1BF_sc7
Item: 1578412
Model: MFL16126
No reviews yet
Price is $215.89
Unit of measure 25/Bundle
Free delivery by Fri, May 01
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Over 30
8" x 6" x 2" Corrugated Mailers, White, 50/Bundle (M862)~#|#~sp21847538_sc78" x 6" x 2" Corrugated Mailers, White, 50/Bundle (M862)~#|#~m004078730_sc7
Item: 947455
Model: M862
Price is $83.19
Unit of measure 50/Bundle
Free delivery by Fri, May 01
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Over 30
Corrugated Mailers, 26" x 6" x 2" White, 50/Bundle (M2662)~#|#~sp21847969_sc7Corrugated Mailers, 26" x 6" x 2" White, 50/Bundle (M2662)~#|#~m004078747_sc7
Item: 2301178
Model: M2662
No reviews yet
Price is $144.89
Unit of measure 50/Bundle
Free delivery by Fri, May 01
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Over 30
48" x 36" x 3" Literature Mailer, Kraft, 20/Bundle (M48363)~#|#~sp21847999_sc748" x 36" x 3" Literature Mailer, Kraft, 20/Bundle (M48363)~#|#~7CABAC77-8A5F-426A-A3DBA9DC94693E92_sc7
Item: 2301491
Model: M48363
No reviews yet
Price is $313.39
Unit of measure 20/Bundle
Free delivery by Fri, May 01
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Over 30
7" x 7" Crush-Proof Mailer, White, 50/Bundle (M774)~#|#~944F19E9-A51C-469A-A3098182901FB41F_sc77" x 7" Crush-Proof Mailer, White, 50/Bundle (M774)~#|#~9279B94B-E43C-444C-81DAF0E011527143_sc7
Item: 947447
Model: M774
No reviews yet
Price is $116.39
Unit of measure 50/Bundle
Free delivery by Fri, May 01
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Over 30
12 1/8" x 9 1/4" x 1" Literature Mailers, White, 50/Bundle (ML1291)~#|#~A83E8D74-92BE-4DBF-BA899EE17FC47EA1_sc712 1/8" x 9 1/4" x 1" Literature Mailers, White, 50/Bundle (ML1291)~#|#~s0537476_sc7
Item: 947494
Model: ML1291
Price is $69.69
Unit of measure 50/Bundle
Free delivery by Fri, May 01
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Over 30
12.125" x 9.25" Literature Mailer, 50/Bundle (MFL1294)~#|#~DB614818-045F-4FB5-9C636C40304D2444_sc712.125" x 9.25" Literature Mailer, 50/Bundle (MFL1294)~#|#~891F3F69-218C-49AE-938780CF10779F90_sc7
Item: 833122
Model: MFL1294
No reviews yet
Price is $137.99
Unit of measure 50/Bundle
Free delivery by Fri, May 01
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Over 30
18" x 12" Literature Mailer, 25/Bundle (MFL18124K)~#|#~E226B694-8C4A-4D3C-B2184CC4600F1D64_sc718" x 12" Literature Mailer, 25/Bundle (MFL18124K)~#|#~06DD0C6D-B6CA-4276-B3D5CF11F8792762_sc7
Item: 1578498
Model: MFL18124K
No reviews yet
Price is $118.29
Unit of measure 25/Bundle
Free delivery by Fri, May 01
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Over 30
5" x 5" Crush-Proof Mailer, 50/Bundle (M553)~#|#~BEAA97E5-6698-4326-A4BC6424017FE343_sc75" x 5" Crush-Proof Mailer, 50/Bundle (M553)~#|#~ED0664DB-05F5-4BAF-AA33AFD98BE0DE01_sc7
Item: 558931
Model: M553
Price is $47.49
Unit of measure 50/Bundle
Free delivery by Fri, May 01
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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
Item: 558925
Model: M733
Price is $36.39
Unit of measure 50/Bundle
Free delivery by Fri, May 01
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Over 30
12" x 9" Literature Mailer, White, 50/Bundle (ML1292R)~#|#~1C15715C-5CE3-4E09-96F585EA120CC487_sc712" x 9" Literature Mailer, White, 50/Bundle (ML1292R)~#|#~8F75971C-D81E-49FA-895BD95B972EDF06_sc7
Item: 2301150
Model: ML1292R
No reviews yet
Price is $128.99
Unit of measure 50/Bundle
Free delivery by Fri, May 01
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Over 30
8" x 5" x 4" Corrugated Mailers, 50/Bundle (M854)~#|#~A61F554F-AD51-4617-A00B4341BE1C4FB3_sc78" x 5" x 4" Corrugated Mailers, 50/Bundle (M854)~#|#~m004078730_sc7
Item: 831811
Model: M854
Price is $99.79
Unit of measure 50/Bundle
Free delivery by Fri, May 01
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Over 30
18" x 12" x 2" Easy-Fold Mailers, Kraft, 50/Bundle (M18122BFK)~#|#~sp21847907_sc718" x 12" x 2" Easy-Fold Mailers, Kraft, 50/Bundle (M18122BFK)~#|#~m002123429_sc7
Item: 1578479
Model: M18122BFK
Price is $108.19
Unit of measure 50/Bundle
Free delivery by Fri, May 01
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Over 30
8" x 5" x 2" Corrugated Mailers, Kraft, 50/Bundle (M852K)~#|#~05A210C1-F687-4FCC-BF5E7FB56E945B54_sc78" x 5" x 2" Corrugated Mailers, Kraft, 50/Bundle (M852K)~#|#~sp23136184_sc7
Item: 24323813
Model: M852K
No reviews yet
Price is $49.99
Unit of measure 50/Bundle
Free delivery by Fri, May 01
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Over 30
14" x 10" Literature Mailer, 50/Bundle (MFL14104K)~#|#~FCC05DD0-C728-4E78-A8BD8718BEE07DAE_sc714" x 10" Literature Mailer, 50/Bundle (MFL14104K)~#|#~E7978883-9F5C-42ED-82803079C3888F1D_sc7
Item: 1578520
Model: MFL14104K
No reviews yet
Price is $189.79
Unit of measure 50/Bundle
Free delivery by Fri, May 01
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Over 30
20" x 16" x 6", Jumbo Mailers, Kraft, 20/Bundle (M20166)~#|#~AF4C1710-AB78-4651-A7ADB988D3674D5C_sc720" x 16" x 6", Jumbo Mailers, Kraft, 20/Bundle (M20166)~#|#~s0537509_sc7
Item: 947088
Model: M20166
No reviews yet
Price is $122.59
Unit of measure 20/Bundle
Free delivery by Fri, May 01
1
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Over 30
4" x 2" Literature Mailer, 50/Bundle (M422)~#|#~1C01DE9C-2618-44D1-A6F543B6CC242248_sc74" x 2" Literature Mailer, 50/Bundle (M422)~#|#~2A500B18-4735-4F84-86E6F063BBE6A02C_sc7
Item: 558900
Model: M422
Price is $21.19
Unit of measure 50/Bundle
Delivery by Fri, May 01
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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 $41.69
Unit of measure 50/Bundle
Free delivery by Fri, May 01
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Over 30
24" x 14" x 4" Corrugated Carrying Cases, White, 10/Bundle (MCC6)~#|#~s0537487_sc7
Item: 946855
Model: MCC6
No reviews yet
Price is $95.29
Unit of measure 10/Bundle
Free delivery by Fri, May 01
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Over 30
11 1/8" x 8 5/8" x 4" Easy-Fold Mailer, White, 50/Bundle (M1BKXL)~#|#~sp21847520_sc711 1/8" x 8 5/8" x 4" Easy-Fold Mailer, White, 50/Bundle (M1BKXL)~#|#~s0537492_sc7
Item: 947433
Model: M1BKXL
No reviews yet
Price is $87.69
Unit of measure 50/Bundle
Free delivery by Fri, May 01
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Over 30
17.25" x 11 1/4" x 2" Easy-Fold Mailers, Kraft, 50/Bundle (M17112BFK)~#|#~sp21847519_sc717.25" x 11 1/4" x 2" Easy-Fold Mailers, Kraft, 50/Bundle (M17112BFK)~#|#~s0537497_sc7
Item: 947432
Model: M17112BFK
Price is $122.69
Unit of measure 50/Bundle
Free delivery by Fri, May 01
1
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Over 30
8" x 7" x 3", Literature Mailers, White, 50/Bundle (ML873)~#|#~32F55843-BDBA-4637-BAC9070B13D10B29_sc78" x 7" x 3", Literature Mailers, White, 50/Bundle (ML873)~#|#~m004078742_sc7
Item: 2301079
Model: ML873
No reviews yet
Price is $89.89
Unit of measure 50/Bundle
Free delivery by Fri, May 01
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Over 30
8" x 5" x 3" Corrugated Mailers, White, 50/Bundle (M853)~#|#~sp21847536_sc78" x 5" x 3" Corrugated Mailers, White, 50/Bundle (M853)~#|#~m004078730_sc7
Item: 947453
Model: M853
No reviews yet
Price is $88.99
Unit of measure 50/Bundle
Free delivery by Fri, May 01
1
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20
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29
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Over 30
12" x 9" Literature Mailer, White, 50/Bundle (M1293)~#|#~C85A004B-958A-453F-A9CB13F9E10E4087_sc712" x 9" Literature Mailer, White, 50/Bundle (M1293)~#|#~3C5BEAB2-513B-402C-8BE9F886AE5D5285_sc7
Item: 420686
Model: M1293
Price is $132.19
Unit of measure 50/Bundle
Free delivery by Fri, May 01
1
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25
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Over 30
24" x 18" x 6" Literature Mailers,, White, 25/Bundle (MFL24186)~#|#~sp21847651_sc724" x 18" x 6" Literature Mailers,, White, 25/Bundle (MFL24186)~#|#~s0537481_sc7
Item: 947272
Model: MFL24186
No reviews yet
Price is $270.99
Unit of measure 25/Bundle
Free delivery by Fri, May 01
1
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20
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25
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29
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Over 30
5" x 2" Crush-Proof Mailer, White, 50/Bundle (M522)~#|#~24C8646E-553D-4749-AF4C3D22DE193822_sc75" x 2" Crush-Proof Mailer, White, 50/Bundle (M522)~#|#~ED68CF0D-92BF-48BD-AFD58FC612AFDF3E_sc7
Item: 558918
Model: M522
Price is $22.99
Unit of measure 50/Bundle
Delivery by Fri, May 01
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Over 30
7 1/2" x 3 1/2" x 3 1/4" Corrugated Mailers, 50/Bundle (MIBM5C)~#|#~82D5E16E-C92D-4B50-957BA1F6366C8240_sc77 1/2" x 3 1/2" x 3 1/4" Corrugated Mailers, 50/Bundle (MIBM5C)~#|#~s0350211_sc7
Item: 558946
Model: MIBM5C
Price is $44.99
Unit of measure 50/Bundle
Free delivery by Fri, May 01
1
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20
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Over 30
SI Products Jumbo Mailers, 36" x 24" x 6", Kraft, 20/Bundle (M36246)~#|#~F8909B5C-4883-4C81-81CAC7A340E2225A_sc7SI Products Jumbo Mailers, 36" x 24" x 6", Kraft, 20/Bundle (M36246)~#|#~m004078429_sc7
Item: 831829
Model: M36246
No reviews yet
Price is $258.79
Unit of measure 20/Bundle
Free delivery by Fri, May 01
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20
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29
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Over 30
14" x 4" x 4" Corrugated Mailers, 50/Bundle (M1444)~#|#~sp21847623_sc714" x 4" x 4" Corrugated Mailers, 50/Bundle (M1444)~#|#~m006879187_sc7
Item: 831821
Model: M1444
Price is $83.19
Unit of measure 50/Bundle
Free delivery by Fri, May 01
1
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Over 30
10" x 6" Crush-Proof Mailer, White, 50/Bundle (M1064)~#|#~4B0E3F85-2512-467C-B93D1788F0BB933C_sc710" x 6" Crush-Proof Mailer, White, 50/Bundle (M1064)~#|#~CB4B8BCE-DD2F-4BE1-8D19FF96BD178B6C_sc7
Item: 947412
Model: M1064
Price is $97.79
Unit of measure 50/Bundle
Free delivery by Fri, May 01
1
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20
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29
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Over 30
3" x 3" x 2" Corrugated Mailers, 50/Bundle (M332K)~#|#~sp21847852_sc73" x 3" x 2" Corrugated Mailers, 50/Bundle (M332K)~#|#~m001911351_sc7
Item: 1499860
Model: M332K
Price is $36.49
Unit of measure 50/Bundle
Free delivery by Fri, May 01
1
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Over 30
Partners Brand Easy-Fold Mailers, 14 1/4" x 11 1/4" x 2", Kraft, 50/Bundle (M14112BFK)~#|#~A4CA387D-94FB-4995-87D7216A3B4E1B9E_sc7Partners Brand Easy-Fold Mailers, 14 1/4" x 11 1/4" x 2", Kraft, 50/Bundle (M14112BFK)~#|#~m004078714_sc7
Item: 2301161
Model: M14112BFK
Price is $137.79
Unit of measure 50/Bundle
Free delivery by Fri, May 01
1
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15
16
17
18
19
20
21
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23
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25
26
27
28
29
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Over 30
17.125" x 11.125" Literature Mailer, White, 50/Bundle (M17115)~#|#~22EFD212-6BA5-452E-9BE9DDAD4D6C3D71_sc717.125" x 11.125" Literature Mailer, White, 50/Bundle (M17115)~#|#~DA838C8C-682A-4C35-939E22EBA42C5041_sc7
Item: 949041
Model: M17115
Price is $225.59
Unit of measure 50/Bundle
Free delivery by Fri, May 01
1
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20
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25
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29
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Over 30
8" x 6" Crush-Proof Mailer, White, 50/Bundle (M863)~#|#~7896D910-87B9-4EF8-A6AFFF636C99F005_sc78" x 6" Crush-Proof Mailer, White, 50/Bundle (M863)~#|#~m004078730_sc7
Item: 831808
Model: M863
Price is $94.49
Unit of measure 50/Bundle
Free delivery by Fri, May 01
1
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17
18
19
20
21
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29
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Over 30
17 1/8" x 11 1/8" x 4" - Literature Mailer, 50/Bundle~#|#~sp21847599_sc717 1/8" x 11 1/8" x 4" - Literature Mailer, 50/Bundle~#|#~s0537476_sc7
Item: 949040
Model: M17114
No reviews yet
Price is $168.09
Unit of measure 50/Bundle
Free delivery by Fri, May 01
1
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19
20
21
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25
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29
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Over 30
Corrugated Mailers, 30" x 4" x 4", White, 50/Bundle (M3044)~#|#~058B5E81-4DAB-493F-BE1F4009589ABB01_sc7Corrugated Mailers, 30" x 4" x 4", White, 50/Bundle (M3044)~#|#~m006879206_sc7
Item: 769730
Model: M3044
No reviews yet
Price is $154.89
Unit of measure 50/Bundle
Free delivery by Fri, May 01
1
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Over 30
7 1/2" x 5 1/2" x 2" Easy-Fold Mailers, 50/Bundle (M752BF)~#|#~sp21847883_sc77 1/2" x 5 1/2" x 2" Easy-Fold Mailers, 50/Bundle (M752BF)~#|#~m002123424_sc7
Item: 1578446
Model: M752BF
Price is $65.39
Unit of measure 50/Bundle
Free delivery by Fri, May 01
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18" x 12" Literature Mailer, White, 25/Bundle (MFL18124)~#|#~4F14E123-1CB4-407E-BA7A61D2507F5EBA_sc718" x 12" Literature Mailer, White, 25/Bundle (MFL18124)~#|#~F29374D6-626E-41C9-AE846F2CAF8A1B9A_sc7
Item: 630472
Model: MFL18124
Price is $117.29
Unit of measure 25/Bundle
Free delivery by Fri, May 01
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30" x 22 1/2" x 1" - White Jumbo Fold-Over Mailer, 20/Bundle~#|#~sp21847679_sc730" x 22 1/2" x 1" - White Jumbo Fold-Over Mailer, 20/Bundle~#|#~s0537513_sc7
Item: 948952
Model: M30221
No reviews yet
Price is $202.89
Unit of measure 20/Bundle
Free delivery by Fri, May 01
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8" x 8" x 3" Literature Mailers, 50/Bundle (ML883K)~#|#~sp21847894_sc78" x 8" x 3" Literature Mailers, 50/Bundle (ML883K)~#|#~m002123459_sc7
Item: 1578466
Model: ML883K
No reviews yet
Price is $84.89
Unit of measure 50/Bundle
Free delivery by Fri, May 01
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Page 1 of 4
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.