8" x 4" x 2" Corrugated Mailers, Kraft, 50/Bundle (M842K)~#|#~sp21847857_sc7
8" x 4" x 2" Corrugated Mailers, Kraft, 50/Bundle (M842K)~#|#~m001911365_sc7
Item # : 1499865
Model # : M842K
Partners Brand Corrugated Mailer 8" x 4" x 2" 50 per Pack - Made of durable paper in Kraft color
  • Color: Brown Kraft
  • Type: Corrugated Mailer
Price is $50.59
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Corrugated Mailers , 6" x 3 5/8" x 2", White, 50/Bundle (MLRBC)~#|#~sp21847449_sc7
Corrugated Mailers , 6" x 3 5/8" x 2", White, 50/Bundle (MLRBC)~#|#~s0069372_sc7
Item # : 558938
Model # : MLRBC
Partners Brand Corrugated Mailers are super strong yet light-weight to save on postage.
  • 6" x 3 5/8" x 2"Perfect for fragile items
  • Assembles in seconds
Price is $46.09
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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12 1/2" x 12 1/2" x 1" Easy-Fold Mailers, Kraft, 50/Bundle~#|#~sp21847512_sc7
12 1/2" x 12 1/2" x 1" Easy-Fold Mailers, Kraft, 50/Bundle~#|#~s0537497_sc7
Item # : 947421
Model # : M12121K
Partners Brand Kraft Easy-Fold Mailer has economical kraft construction that helps reduce mailing costs.
  • These one-piece mailers have scores at multiple depths to ensure the proper fit for your products. Multi-depth dimensions: 1/2”, 1”
  • Simply place product in the center, fold in the sides at your desired depth and seal with tape
Price is $98.19
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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White Corrugated Mailers, 11-1/8" x 8-3/4" x 2", 50/Bundle
White Corrugated Mailers, 11-1/8" x 8-3/4" x 2", 50/Bundle
Item # : 420689
Model # : M1182
Partners Brand Literature Mailers are the perfect fit for your literature piece without the expense of a custom carton.
  • Literature Mailers are the perfect fit for any literature piece.
  • Strong 200#/ECT-32-B oyster white corrugated construction.
Price is $80.09
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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20" x 16" x 2" Easy-Fold Mailers, 50/Bundle (M20162BFK)~#|#~sp21847906_sc7
20" x 16" x 2" Easy-Fold Mailers, 50/Bundle (M20162BFK)~#|#~m002123429_sc7
Item # : 1578478
Model # : M20162BFK
The Partners Brand M20162BFK brown 2" x 20" kraft easy fold mailers is designed to offer an economical solution that simplifies all your packaging problems.
  • Economical kraft construction helps reduce mailing costs.
  • These one-piece mailers have scores at multiple depths to ensure the proper fit for your products. Multi-depth dimensions: ½”, 1”, 1-1/2”, 2”
Price is $166.59
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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17 1/4" x 11 1/4" x 4" Literature Mailers, 25/Bundle (ML17114)~#|#~sp21847821_sc7
17 1/4" x 11 1/4" x 4" Literature Mailers, 25/Bundle (ML17114)~#|#~m001911380_sc7
Item # : 1499826
Model # : ML17114
No reviews yet
Partners Brand Literature Mailers are the perfect fit for your literature piece without the expense of a custom carton.
  • Material: Corrugated Kraft
  • Dimension: 4"H x 11.25"W x 17.25"D
Price is $94.19
Unit of measure 25/Bundle
Free delivery by Wed, Jul 16
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Jumbo Mailers, 28" x 22" x 6", Kraft, 20/Bundle (M28226)~#|#~sp21847647_sc7
Jumbo Mailers, 28" x 22" x 6", Kraft, 20/Bundle (M28226)~#|#~m003578355_sc7
Item # : 947094
Model # : M28226
No reviews yet
Partners Brand Kraft Jumbo Mailers are found in hard-to-find sizes.
  • Jumbo mailers in hard-to-find sizes.
  • Great for shipping framed posters or artwork.
Price is $194.69
Unit of measure 20/Bundle
Free delivery by Wed, Jul 16
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17" x 11" x 2 1/2" Literature Mailers, 25/Bundle (ML17112)~#|#~sp21847822_sc7
17" x 11" x 2 1/2" Literature Mailers, 25/Bundle (ML17112)~#|#~m001911380_sc7
Item # : 1499827
Model # : ML17112
No reviews yet
Partners Brand Literature Mailers are the perfect fit for your literature piece without the expense of a custom carton.
  • Dimension: 17"H x 11"W x 2.5"D
  • Color: White
Price is $74.89
Unit of measure 25/Bundle
Free delivery by Wed, Jul 16
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6" x 6" x 2" Corrugated Mailers, 50/Bundle (M662K)~#|#~sp21847845_sc7
6" x 6" x 2" Corrugated Mailers, 50/Bundle (M662K)~#|#~m001911361_sc7
Item # : 1499853
Model # : M662K
Partners Brand 6" x 6" x 2" Kraft Corrugated Mailers - Ideal for shipping small, light-weight fragile items
  • Dimension: 6"H x 6"W x 2"D
  • Type: Corrugated Mailer
Price is $79.69
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Corrugated Mailers, 26" x 6" x 2" White, 50/Bundle (M2662)~#|#~sp21847969_sc7
Corrugated Mailers, 26" x 6" x 2" White, 50/Bundle (M2662)~#|#~m004078747_sc7
Item # : 2301178
Model # : M2662
No reviews yet
Corrugated Mailers are super strong yet light-weight to save on postage.
  • Corrugated Mailers are super strong yet light-weight to save on postage.
  • Perfect for shipping small, light-weight fragile items.
Price is $137.79
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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White Corrugated Mailers, 11-1/8" x 8-3/4" x 3", 50/Bundle~#|#~sp21847298_sc7
White Corrugated Mailers, 11-1/8" x 8-3/4" x 3", 50/Bundle~#|#~420684_01_ci_sc7
Item # : 420684
Model # : M1183
Partners Brand Literature Mailers are the perfect fit for your literature piece without the expense of a custom carton.
  • 11-1/8" x 8-3/4" x 3"
  • Folds together in seconds, no tape needed
Price is $88.09
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Corrugated Mailers, 6" x 5" x 4", White, 50/Bundle (M654)~#|#~sp21847528_sc7
Corrugated Mailers, 6" x 5" x 4", White, 50/Bundle (M654)~#|#~m004078726_sc7
Item # : 947441
Model # : M654
No reviews yet
White Crush-Proof Corrugated Mailer is super strong yet light-weight to save on postage.
  • Corrugated Mailers are super strong yet light-weight to save on postage.
  • Perfect for shipping small, light-weight fragile items.
Price is $79.89
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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9" x 6 1/2" x 2 3/4" Deluxe Literature Mailers, 50/Bundle (MFL962R)~#|#~sp21847868_sc7
9" x 6 1/2" x 2 3/4" Deluxe Literature Mailers, 50/Bundle (MFL962R)~#|#~m002123453_sc7
Item # : 1578416
Model # : MFL962R
No reviews yet
The Partners Brand MFL962R oyster white 2.75" x 9" deluxe literature mailers provides a smart way to ship and store all your important documents in the easiest way possible.
  • Product Type: Literature Mailers
  • Oyster white colored corrugated construction
Price is $99.59
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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20" x 16" x 1" - White Jumbo Fold-Over Mailer, 20/Bundle~#|#~sp21847640_sc7
20" x 16" x 1" - White Jumbo Fold-Over Mailer, 20/Bundle~#|#~s0537513_sc7
Item # : 947087
Model # : M20161
No reviews yet
This one-piece Jumbo Fold-Over Mailer is great for oversized flat items like portfolios, maps and blue prints.
  • Jumbo Fold-Over Mailers are great for shipping flat items.
  • Mailer fully opens for easy packing. Simply lay product on the flat mailer, fold in and seal with tape.
Price is $58.89
Unit of measure 20/Bundle
Free delivery by Wed, Jul 16
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Corrugated Mailers, 9" x 6" x 4", White, 50/Bundle (MLR964)~#|#~sp21847588_sc7
Corrugated Mailers, 9" x 6" x 4", White, 50/Bundle (MLR964)~#|#~m004078746_sc7
Item # : 947506
Model # : MLR964
No reviews yet
White Crush-Proof Corrugated Mailer is super strong yet light-weight to save on postage.
  • Corrugated Mailers are super strong yet light-weight to save on postage.
  • Perfect for shipping small, light-weight fragile items.
Price is $116.09
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Corrugated Mailers, 18" x 12" x 4" White, 50/Bundle (M18124)~#|#~sp21847976_sc7
Corrugated Mailers, 18" x 12" x 4" White, 50/Bundle (M18124)~#|#~m004078730_sc7
Item # : 2301191
Model # : M18124
No reviews yet
Corrugated Mailers are super strong yet light-weight to save on postage.
  • Corrugated Mailers are super strong yet light-weight to save on postage.
  • Perfect for shipping small, light-weight fragile items.
Price is $359.69
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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12" x 10 1/2" x 2" Easy-Fold Mailers, 50/Bundle (M12102BFK)~#|#~sp21847939_sc7
12" x 10 1/2" x 2" Easy-Fold Mailers, 50/Bundle (M12102BFK)~#|#~m002123417_sc7
Item # : 1578513
Model # : M12102BFK
The Partners Brand M12102BFK brown 2" x 12" kraft easy fold mailers provides a smart way to ship and store all your important documents in the easiest way possible.
  • Product Type: Easy-Fold Mailers
  • Brown colored kraft corrugated construction
Price is $102.49
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Partners Brand Deluxe Literature Mailer, 8" x 8" x 2.75", White, 50/Bundle (MFL882)~#|#~47030216-F422-4104-A754C02758E1700D_sc7
Partners Brand Deluxe Literature Mailer, 8" x 8" x 2.75", White, 50/Bundle (MFL882)~#|#~E14F8C28-042D-4214-A2E54D8083DA1C5C_sc7
Item # : 426610
Model # : MFL882
No reviews yet
Partners Brand Deluxe Literature Mailers feature protective side flaps and front outside tuck closure.
  • 8" x 8" x 2-3/4"
  • Features protective side flaps and front outside tuck closure
Price is $74.49
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Over 30
9 1/2" x 6 1/2" x 2" Easy-Fold Mailers, Kraft, 50/Bundle (M962BFK)~#|#~sp21847551_sc7
9 1/2" x 6 1/2" x 2" Easy-Fold Mailers, Kraft, 50/Bundle (M962BFK)~#|#~m003578385_sc7
Item # : 947468
Model # : M962BFK
Partners Brand Kraft Easy-Fold Mailer has economical kraft construction that helps reduce mailing costs.
  • Economical kraft construction helps reduce mailing costs.
  • These one-piece mailers have scores at multiple depths to ensure the proper fit for your products. Multi-depth dimensions: ½”, 1”, 1-1/2”, 2”, 2-1/2”
Price is $84.89
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Over 30
4" x 4" x 1" Corrugated Mailers, 50/Bundle (M441)~#|#~sp21847618_sc7
4" x 4" x 1" Corrugated Mailers, 50/Bundle (M441)~#|#~m006879176_sc7
Item # : 831816
Model # : M441
Partners Brand Corrugated Mailers are super strong yet light-weight to save on postage.
  • 4" x 4" x 1"
  • Front locking tabs won't interfere with contents and provide a secure closure
Price is $48.39
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Over 30
Literature Mailers, 12" x 9" x 2", White, 50/Bundle (ML1292R)~#|#~sp21847747_sc7
Literature Mailers, 12" x 9" x 2", White, 50/Bundle (ML1292R)~#|#~m004078713_sc7
Item # : 2301150
Model # : ML1292R
No reviews yet
The perfect fit for your literature piece without the expense of a custom carton.
  • The perfect fit for your literature piece without the expense of a custom carton.
  • Assembles in seconds without tape, glue or staples.
Price is $132.39
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Over 30
Partners Brand Corrugated Mailers, 4" x 4" x 4", Kraft, 50/Bundle (M444K)~#|#~sp21847849_sc7
Partners Brand Corrugated Mailers, 4" x 4" x 4", Kraft, 50/Bundle (M444K)~#|#~m001911353_sc7
Item # : 1499857
Model # : M444K
No reviews yet
Partners Brand Kraft Corrugated Mailers are light-weight to help save on postage.
  • Crush Resistant Mailer Folds to Provide Double Walls of Protection on Front & Sides
  • Corrugated Mailers are perfect for shipping small, light-weight fragile items
Price is $66.89
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Over 30
Partners Brand Corrugated Mailers, 10" x 7" x 4", White, 50/Bundle (M1074)~#|#~sp21847992_sc7
Partners Brand Corrugated Mailers, 10" x 7" x 4", White, 50/Bundle (M1074)~#|#~m004078716_sc7
Item # : 2301207
Model # : M1074
Corrugated Mailers are super strong yet light-weight to save on postage.
  • Use these corrugated mailers to ship merchandise safely
  • Corrugated Mailers are manufactured from 200#/ECT32-B oyster white corrugated
Price is $114.59
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Over 30
12 1/8 " x 9 1/4" x 4" Deluxe Literature Mailers, 50/Bundle (MFL1294)~#|#~sp21847639_sc7
12 1/8 " x 9 1/4" x 4" Deluxe Literature Mailers, 50/Bundle (MFL1294)~#|#~s0350209_sc7
Item # : 833122
Model # : MFL1294
No reviews yet
Partners Brand Deluxe Literature Mailers feature protective side flaps and front outside tuck closure.
  • 12-1/8" x 9-1/4" x 4"
  • Folds together in seconds, no tape needed
Price is $131.29
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Over 30
Partners Brand Corrugated Mailers, 14" x 4" x 2", White, 50/Bundle (M14142K)~#|#~sp21847911_sc7
Partners Brand Corrugated Mailers, 14" x 4" x 2", White, 50/Bundle (M14142K)~#|#~m002123427_sc7
Item # : 1578483
Model # : M1442
The Partners Brand M1442 oyster white 2" x 14" corrugated mailers provides a economical solution to packaging problems for items that needs to be mailed.
  • Oyster white colored corrugated construction
  • Assembles in seconds without tape, glue or staples
Price is $63.59
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Over 30
12" x 6" x 4" Corrugated Mailers, 50/Bundle (M1264K)~#|#~sp21847829_sc7
12" x 6" x 4" Corrugated Mailers, 50/Bundle (M1264K)~#|#~m001911350_sc7
Item # : 1499834
Model # : M1264K
Partners Brand Kraft Corrugated Mailers 12" x 6" x 4" 50 per Pack - Made of durable Kraft
  • Color: Kraft
  • Type: Corrugated Mailer
Price is $104.69
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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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
The perfect fit for your literature piece without the expense of a custom carton.
  • Literature Mailers are the perfect fit for any literature piece
  • Strong 200#/ECT-32-B oyster white corrugated construction
Price is $94.19
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Over 30
6" x 6" x 4" Corrugated Mailers, 50/Bundle (M664)~#|#~sp21847628_sc7
6" x 6" x 4" Corrugated Mailers, 50/Bundle (M664)~#|#~s0025615_sc7
Item # : 831827
Model # : M664
No reviews yet
Partners Brand Corrugated Mailers are super strong yet light-weight to save on postage.
  • Corrugated Mailers are perfect for shipping small, light-weight fragile items.
  • Corrugated Mailers are manufactured from 200#/ECT-32-B oyster white corrugated.
Price is $74.99
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Over 30
Literature Mailers, 18" x 18" x 2", White, 25/Bundle (ML18182)~#|#~sp21847995_sc7
Literature Mailers, 18" x 18" x 2", White, 25/Bundle (ML18182)~#|#~m004078748_sc7
Item # : 2301338
Model # : ML18182
No reviews yet
The perfect fit for your literature piece without the expense of a custom carton.
  • Strong 200#/ECT-32-B oyster white corrugated construction.
  • 18" x 18" x 2"
Price is $96.69
Unit of measure 25/Bundle
Free delivery by Wed, Jul 16
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Over 30
Partners Brand Literature Mailers, 9" x 6 1/2" x 1 3/4", White, 50/Bundle (ML961)~#|#~sp21847582_sc7
Partners Brand Literature Mailers, 9" x 6 1/2" x 1 3/4", White, 50/Bundle (ML961)~#|#~s0537476_sc7
Item # : 947500
Model # : ML961
Partners Brand Literature Mailers are the perfect fit for your literature piece without the expense of a custom carton.
  • Assembles in seconds without tape, glue or staples
  • Strong 200#/ECT-32-B white corrugated construction
Price is $47.39
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Literature Mailers, 9" x 7 1/2" x 3", White, 50/Bundle (ML973)~#|#~sp21847584_sc7
Literature Mailers, 9" x 7 1/2" x 3", White, 50/Bundle (ML973)~#|#~m004078742_sc7
Item # : 947502
Model # : ML973
Partners Brand Literature Mailers are the perfect fit for your literature piece without the expense of a custom carton.
  • The perfect fit for your literature piece without the expense of a custom carton.
  • Assembles in seconds without tape, glue or staples.
Price is $71.19
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Over 30
Corrugated Mailers, 6 1/2" x 4 7/8" x 3 3/4" Kraft, 50/Bundle (MLR4K)~#|#~sp23136194_sc7
Item # : 24323815
Model # : MLR4K
No reviews yet
Kraft Corrugated Mailers are light-weight to save on postage.
  • Perfect for shipping small, light-weight fragile items.
  • Corrugated Mailers are manufactured from 200#
Price is $64.59
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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12" x 12" x 3" Literature Mailers, 50/Bundle (ML12123K)~#|#~sp21847918_sc7
12" x 12" x 3" Literature Mailers, 50/Bundle (ML12123K)~#|#~m002123458_sc7
Item # : 1578492
Model # : ML12123K
No reviews yet
The Partners Brand ML12123K brown 3" x 12" kraft literature mailers is an economical option to efficiently ship and store all your important documents.
  • Our most popular sizes of literature mailers in economical kraft corrugated.
  • The perfect size to ship and store documents.
Price is $114.69
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Over 30
Literature Mailers, 8" x 8" x 1 1/4", White, 50/Bundle (ML881)~#|#~sp21847958_sc7
Literature Mailers, 8" x 8" x 1 1/4", White, 50/Bundle (ML881)~#|#~m004078748_sc7
Item # : 2301077
Model # : ML881
The perfect fit for your literature piece without the expense of a custom carton.
  • Literature mailers useful for shipping documents and books of many sizes
  • 8" x 8" x 1 1/4"
Price is $59.39
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Over 30
7" x 5" x 5" Corrugated Mailers, 50/Bundle (M755)~#|#~sp21847616_sc7
7" x 5" x 5" Corrugated Mailers, 50/Bundle (M755)~#|#~m004078733_sc7
Item # : 831813
Model # : M755
Partners Brand Corrugated Mailers are super strong yet light-weight to save on postage.
  • 7" x 5" x 5"
  • Front locking tabs won't interfere with contents and provide a secure closure
Price is $78.49
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Over 30
Partners Brand Corrugated Mailers, 11 3/4" x 10 3/4" x 2 1/4", White, 50/Bundle (M3RB)~#|#~sp21847292_sc7
Partners Brand Corrugated Mailers, 11 3/4" x 10 3/4" x 2 1/4", White, 50/Bundle (M3RB)~#|#~sp21847292_sc7
Item # : 414167
Model # : M3RB
Partners Brand Literature Mailers are the perfect fit for your literature piece without the expense of a custom carton.
  • Literature Mailers are the perfect fit for any literature piece
  • Strong 200#/ECT-32-B oyster white corrugated construction
Price is $66.29
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Over 30
Literature Mailers, 10 1/4" x 8 1/4" x 2", White, 50/Bundle (ML1082)~#|#~sp21847575_sc7
Literature Mailers, 10 1/4" x 8 1/4" x 2", White, 50/Bundle (ML1082)~#|#~s0537476_sc7
Item # : 947493
Model # : ML1082
Partners Brand Literature Mailers are the perfect fit for your literature piece without the expense of a custom carton.
  • The perfect fit for your literature piece without the expense of a custom carton.
  • Assembles in seconds without tape, glue or staples.
Price is $80.59
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Over 30
Literature Mailers, 12" x 12" x 1 1/4", White, 50/Bundle (ML12121)~#|#~sp21847750_sc7
Literature Mailers, 12" x 12" x 1 1/4", White, 50/Bundle (ML12121)~#|#~m004078748_sc7
Item # : 2301153
Model # : ML12121
No reviews yet
The perfect fit for your literature piece without the expense of a custom carton.
  • The perfect fit for your literature piece without the expense of a custom carton.
  • Assembles in seconds without tape, glue or staples.
Price is $103.79
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Over 30
Corrugated Mailers, 12" x 9" x 4", Kraft, 50/Bundle (MLR1294K)~#|#~sp21847763_sc7
Corrugated Mailers, 12" x 9" x 4", Kraft, 50/Bundle (MLR1294K)~#|#~m004078715_sc7
Item # : 2301166
Model # : MLR1294K
No reviews yet
Kraft Corrugated Mailers are light-weight to save on postage.
  • Kraft Corrugated Mailers are light-weight to save on postage.
  • Perfect for shipping small, light-weight fragile items.
Price is $126.49
Unit of measure 50/Bundle
Free delivery by Wed, Jul 16
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Over 30
30" x 22 1/2" x 1/4" - White Jumbo Fold-Over Mailer, 20/Bundle~#|#~sp21847680_sc7
30" x 22 1/2" x 1/4" - White Jumbo Fold-Over Mailer, 20/Bundle~#|#~s0537513_sc7
Item # : 948953
Model # : M302214
No reviews yet
This one-piece Jumbo Fold-Over Mailer is great for oversized flat items like portfolios, maps and blue prints.
  • Dimensions: 30" x 22 1/2" x 1/4"
  • Mailer fully opens for easy packing, and simply lay product on the flat mailer, fold in and seal with tape
Price is $115.09
Unit of measure 20/Bundle
Free delivery by Wed, Jul 16
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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.