Corrugated Mailers

13" x 10" Literature Mailer, White, 50/Bundle (M13104)~#|#~B92618FF-C45D-4CAA-B5BA2C6896DB3F85_sc713" x 10" Literature Mailer, White, 50/Bundle (M13104)~#|#~CEE7A085-0CF5-4CE7-B34CB7F72ABC65B0_sc7
Item: 949031
Model: M13104
Price is $150.29
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Corrugated Mailers, 8" x 5" x 4", Kraft, 50/Bundle (M854K)~#|#~7D3F83AD-D9AA-415D-AA683A17CD0278EE_sc7Corrugated Mailers, 8" x 5" x 4", Kraft, 50/Bundle (M854K)~#|#~sp23136186_sc7
Item: 24323811
Model: M854K
No reviews yet
Price is $64.59
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
6 1/2" x 3 1/4" x 1 1/4" Corrugated Mailers, 50/Bundle (MRx 1x L)~#|#~AA12FB59-2DD1-42A3-9175C0F0C0574024_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 Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
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 Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
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 $8.69
Delivery by Tue, Mar 24
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
9" x 7.5" Literature Mailer, White, 50/Bundle (ML973)~#|#~0A0E07F5-A7AA-44AB-B0724ED5B13F1405_sc79" x 7.5" Literature Mailer, White, 50/Bundle (ML973)~#|#~C69DB2EC-CE19-4509-AADDE61E7F85BADE_sc7
Item: 947502
Model: ML973
Price is $72.99
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
6" x 4" x 3" Corrugated Mailers, White, 50/Bundle (M643)~#|#~sp21847504_sc76" x 4" x 3" Corrugated Mailers, White, 50/Bundle (M643)~#|#~263015FE-E1AE-4426-BA6AA035E580F1F7_sc7
Item: 559027
Model: M643
Price is $39.49
Unit of measure 50/Bundle
Free Next-Day eligible by tomorrow
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
10" x 5" Crush-Proof Mailer, White, 50/Bundle (M1054)~#|#~0A7E0607-8425-45D2-B35AC85E5B49E960_sc710" x 5" Crush-Proof Mailer, White, 50/Bundle (M1054)~#|#~ABED5544-EF9F-49F2-9DA14B57033D3EA0_sc7
Item: 947409
Model: M1054
Price is $53.49
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
12 1/2" x 12 1/2" x 1" Crush-Proof Mailer, Kraft, 50/Bundle (M12121K)~#|#~sp21847512_sc712 1/2" x 12 1/2" x 1" Crush-Proof Mailer, Kraft, 50/Bundle (M12121K)~#|#~B58CE5F4-2972-44F0-955A842C8D5FEC08_sc7
Item: 947421
Model: M12121K
Price is $100.69
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
11 1/8" x 8 3/4" x 2" Deluxe Literature Mailers, White, 50/Bundle (MFL1182)~#|#~sp21847607_sc711 1/8" x 8 3/4" x 2" Deluxe Literature Mailers, White, 50/Bundle (MFL1182)~#|#~B32D0F08-1065-46E3-9D53CBE72708CA82_sc7
Item: 831801
Model: MFL1182
Price is $73.19
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
12" x 12" x 4" Literature Mailers, White, 50/Bundle (M12124)~#|#~sp21847475_sc712" x 12" x 4" Literature Mailers, White, 50/Bundle (M12124)~#|#~B2E0ECFD-EFA9-4B6A-B1E3E8CA758F2675_sc7
Item: 630479
Model: M12124
No reviews yet
Price is $123.99
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
7" x 5" Literature Mailer, 50/Bundle (M752)~#|#~961F5D9E-C2B3-4CA2-BBA8294447E287A5_sc77" x 5" Literature Mailer, 50/Bundle (M752)~#|#~91B8D77F-F73F-4CB5-AEA0FACE1D9D1B21_sc7
Item: 831815
Model: M752
Price is $39.39
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
12" x 10" Literature Mailer, 50/Bundle (MFL12104)~#|#~074913E8-F2CA-4C4B-A1487D1A7BA0915D_sc712" x 10" Literature Mailer, 50/Bundle (MFL12104)~#|#~2ACDB8C1-12A8-4355-863BAFA77AB9DACC_sc7
Item: 1578524
Model: MFL12104
No reviews yet
Price is $168.59
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
18" x 12" Literature Mailer, 25/Bundle (MFL18126)~#|#~900841D4-533B-4AFC-B1AC934D730F5964_sc718" x 12" Literature Mailer, 25/Bundle (MFL18126)~#|#~DF2329E7-9CE2-49D8-923A69353F386791_sc7
Item: 1578411
Model: MFL18126
No reviews yet
Price is $201.09
Unit of measure 25/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
10" x 6" Crush-Proof Mailer, Kraft, 50/Bundle (M1066K)~#|#~09DF0A28-9670-4E06-8AB49F45F449F06C_sc710" x 6" Crush-Proof Mailer, Kraft, 50/Bundle (M1066K)~#|#~54345FE2-9970-4810-BEC3683E63CA708D_sc7
Item: 24323824
Model: M1066K
Price is $109.29
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Bankers Box Smoothmove Prime Moving Boxes W/lift Off Lid, 24l x 15w x 10h, Kraft, 8/Carton
Bankers Box Smoothmove Prime Moving Boxes W/lift Off Lid, 24l x 15w x 10h, Kraft, 8/Carton is New at Staples
Item: FEL0066001
Model: FEL0066001
Price is $97.89
Unit of measure Carton
Free Next-Day eligible by tomorrow
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
4" x 3" Crush-Proof Mailer, White, 50/Bundle (M432)~#|#~CF71426E-E7E6-4546-B027C44C12BF46C9_sc74" x 3" Crush-Proof Mailer, White, 50/Bundle (M432)~#|#~66ECADF1-C471-40EB-96655A2CB1775D3C_sc7
Item: 558901
Model: M432
No reviews yet
Price is $26.79
Unit of measure 50/Bundle
Delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
12 1/2" x 12 1/2" x 2 1/2" Easy-Fold Mailers, Kraft, 50/Bundle (M12122K)~#|#~sp21847514_sc712 1/2" x 12 1/2" x 2 1/2" Easy-Fold Mailers, Kraft, 50/Bundle (M12122K)~#|#~79F5569E-D264-493A-B4CC0903FE8ACAB6_sc7
Item: 947423
Model: M12122K
Price is $121.29
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
20" x 16" x 1" Mailer, White, 20/Bundle (M20161)~#|#~sp21847640_sc720" x 16" x 1" Mailer, White, 20/Bundle (M20161)~#|#~E5B187B1-C729-4E96-A971732EBD8FAB07_sc7
Item: 947087
Model: M20161
Price is $60.39
Unit of measure 20/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Literature Mailers, 8" x 8" x 2", White, 50/Bundle (ML882)~#|#~sp21847957_sc7Literature Mailers, 8" x 8" x 2", White, 50/Bundle (ML882)~#|#~m004078744_sc7
Item: 2301076
Model: ML882
Price is $58.69
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
7" x 4" Crush-Proof Mailer, White, 50/Bundle (M742)~#|#~FD677FA0-97DF-4D80-85AD7718E97B47AC_sc77" x 4" Crush-Proof Mailer, White, 50/Bundle (M742)~#|#~3D0F12DC-8C6D-4904-896BC0E68C681B56_sc7
Item: 559028
Model: M742
Price is $55.59
Unit of measure 50/Bundle
Free delivery by Mon, Mar 23
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
20" x 16" x 2" Easy-Fold Mailers, 50/Bundle (M20162BFK)~#|#~D6C9F07D-CA85-47DA-A32B95DB3AB43495_sc720" x 16" x 2" Easy-Fold Mailers, 50/Bundle (M20162BFK)~#|#~m002123429_sc7
Item: 1578478
Model: M20162BFK
Price is $170.79
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Easy-Fold Mailers, 12 1/8" x 9 1/8" x 3", Kraft, 50/Bundle (M1293BFK)~#|#~032AEE05-3002-41E6-B4171E987558A97D_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 Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Partners Brand Deluxe Literature Mailers, 24" x 18" x 6", White, 25/Bundle (MFL24186)~#|#~34A56F85-EA6B-4AD9-BD3A9DA309F18870_sc7Partners Brand Deluxe Literature Mailers, 24" x 18" x 6", White, 25/Bundle (MFL24186)~#|#~sp95007442_sc7
Item: 947272
Model: MFL24186
No reviews yet
Price is $242.99
Unit of measure 25/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
6" x 4" Crush-Proof Mailer, White, 50/Carton (M642)~#|#~4CA17B5A-BE65-42E8-9F8728230F78B041_sc76" x 4" Crush-Proof Mailer, White, 50/Carton (M642)~#|#~42FCBC1B-A98E-4030-B8CD4CA6EB041FED_sc7
Item: 558941
Model: M642
Price is $33.99
Unit of measure 50/Carton
Delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
11" x 6.25" Literature Mailer, White, 50/Carton (M1162)~#|#~57CEFE48-721D-404B-88D0E3DF5AAEAB29_sc711" x 6.25" Literature Mailer, White, 50/Carton (M1162)~#|#~8BA42120-E5A4-401F-BE3CCD10792F7451_sc7
Item: 420688
Model: M1162
Price is $77.49
Unit of measure 50/Carton
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
13" x 10" x 2" Literature Mailers, White, 50/Bundle (M13102)~#|#~sp21847478_sc713" x 10" x 2" Literature Mailers, White, 50/Bundle (M13102)~#|#~581AF374-2EF1-4174-90E866FF916DDDBC_sc7
Item: 630521
Model: M13102
No reviews yet
Price is $123.29
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
5.8" x 5" x .5" Literature Mailer, 50/Bundle (MLRCD)~#|#~1DE3E86D-968C-483B-91D8791F4D152B14_sc7
Item: 2647435
Model: MLRCD
No reviews yet
Price is $63.09
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
9.625" x 6.625" Crush-Proof Mailer, Kraft, 50/Bundle (M961K)~#|#~48129AD4-8305-4ECC-864DB2F7A74A8C6A_sc79.625" x 6.625" Crush-Proof Mailer, Kraft, 50/Bundle (M961K)~#|#~1DAE2109-7AEC-405E-AF6586EDA3951BBB_sc7
Item: 947466
Model: M961K
Price is $52.89
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Corrugated Mailers, 12" x 2" x 2", White, 50/Bundle (M1222)~#|#~CFF185A4-3F5E-48E2-99F62C2B164991AC_sc7Corrugated Mailers, 12" x 2" x 2", White, 50/Bundle (M1222)~#|#~m004078747_sc7
Item: 2301198
Model: M1222
Price is $39.79
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
8" x 4" x 3" Corrugated Mailers, 50/Bundle (M843)~#|#~2821D519-801F-4CFB-A9A5C4106BC7D3A3_sc78" x 4" x 3" Corrugated Mailers, 50/Bundle (M843)~#|#~m004078736_sc7
Item: 558951
Model: M843
Price is $46.59
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
11.1" x 8.7" x 2.3" Literature Mailer, White, 50/Bundle (M1182D)~#|#~sp21847290_sc711.1" x 8.7" x 2.3" Literature Mailer, White, 50/Bundle (M1182D)~#|#~BF30C221-08AA-4CEF-BB0A3BBBE214D6F1_sc7
Item: 414165
Model: M1182D
Price is $82.79
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
9" x 6" Crush-Proof Mailer, White, 50/Bundle (M963)~#|#~AC3EFF3E-B2CB-4125-BBDB07CA44CC0E0C_sc79" x 6" Crush-Proof Mailer, White, 50/Bundle (M963)~#|#~E7326391-55DF-44C0-A1C9AA1BF608DB2E_sc7
Item: 947469
Model: M963
No reviews yet
Price is $125.89
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
8.62" x 11.12" Literature Mailer, White, 50/Bundle (M1181)~#|#~4974CE3D-C1B3-4A1D-ACE4B9715FE5A061_sc78.62" x 11.12" Literature Mailer, White, 50/Bundle (M1181)~#|#~2D0F3AC6-810A-405C-A8AE57F908B213D4_sc7
Item: 949026
Model: M1181
Price is $55.39
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
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 $20.59
Unit of measure 50/Bundle
Delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
7" x 3" x 3" Corrugated Mailers, 50/Bundle (M733)~#|#~83573425-8CCB-455B-923A357F829F4D2D_sc77" x 3" x 3" Corrugated Mailers, 50/Bundle (M733)~#|#~m006879194_sc7
Item: 558925
Model: M733
Price is $35.49
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
9" x 6 1/2" x 1 3/4" Literature Mailers, White, 50/Bundle (ML961)~#|#~sp21847582_sc79" x 6 1/2" x 1 3/4" Literature Mailers, White, 50/Bundle (ML961)~#|#~9D12F34A-8E5A-401E-8C09F0DE0E14E7E4_sc7
Item: 947500
Model: ML961
Price is $47.19
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
15 1/8" x 11 1/8" x 4" Literature Mailers, White, 50/Bundle (BSMFL15114)~#|#~sp21847490_sc715 1/8" x 11 1/8" x 4" Literature Mailers, White, 50/Bundle (BSMFL15114)~#|#~97D69FC4-09C2-4ED8-947D98D103BDF7B0_sc7
Item: 696608
Model: MFL15114
No reviews yet
Price is $183.49
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
3" x 3" x 3" Corrugated Mailers, 50/Bundle (M333)~#|#~F5FD3FFE-5BC3-4BAC-955FBA516DCFC478_sc73" x 3" x 3" Corrugated Mailers, 50/Bundle (M333)~#|#~s0350205_sc7
Item: 558898
Model: M333
Price is $24.09
Unit of measure 50/Bundle
Delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Corrugated Mailers, 8" x 8" x 2", White, 50/Bundle (M882)~#|#~61EE68B9-FD56-43B2-8B92DCCED7AB9F5E_sc7Corrugated Mailers, 8" x 8" x 2", White, 50/Bundle (M882)~#|#~m004078727_sc7
Item: 947458
Model: M882
Price is $103.39
Unit of measure 50/Bundle
Free delivery by Thu, Mar 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30

Trending now

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.