Mailer Boxes

SELECTION EXPERT ADVICE

Self-Locking vs Tape-Seal Mailer Formats
MORE INFO
Self-locking mailer boxes close without tape using interlocking tabs, which speeds up packing on high-volume lines and creates a cleaner, more professional appearance. Tape-sealed formats allow more flexibility in fill height and can handle slightly oversized contents that exceed the box depth without a visible gap at the closure.
Size Selection for Common Product Categories
MORE INFO
Literature mailers suit flat, rigid items like books, catalogs, and framed prints. Garment mailers handle folded clothing and accessories efficiently. Multimedia mailers are sized for CDs, DVDs, and gaming cartridges. Choosing the right format for your specific product eliminates wasted space and reduces the cushioning material needed to fill the gap.
Mailer Boxes for Branded DTC Packaging
MORE INFO
Branded mailer boxes with consistent dimensions create a repeatable unboxing experience that can be photographed, shared, and recognized as part of your brand identity. Standardizing on one or two mailer sizes across your product line simplifies procurement, reduces pack station training time, and lowers your per-unit packaging cost.

Need help choosing a mailer box?

Decide between a mailer box and a poly or bubble mailer

Use these buying guides to choose the right format for your product weight, protection level, and unboxing experience.

Mailers Guide → Poly vs bubble vs rigid mailers Mailer vs Box Selector → When a mailer is enough and when you need a box
Overview

644 corrugated mailer boxes from 4 to 30 inches: white and kraft literature mailers, self-seal tab-lock and ECT-32 styles in packs of 10, 25 and 50. Inside dimensions and board grade are listed on each box. Orders ship from five US regional warehouses; for mixed or recurring orders use the bulk quote path with SKU, quantity and destination ZIP.

Related collections

Buying path

Buy Mailer Boxes by the specs that change the order

Use filters, product titles, and product pages to compare size, material, pack count, case quantity, and fit before ordering.

Compare

Use filters and product titles to narrow by the specs that affect fit.

Confirm

Open the product page before ordering a case so you can check quantity, unit, and limits.

Reorder

Save the SKU or product link for repeat purchasing and support questions.

Larger orders

For pallet, recurring, or mixed-SKU orders, send your list and ZIP and get a delivered price by email.

What to check first

  • Inside dimensions
  • Board grade or strength rating
  • Box style and closure
  • Case or bundle quantity
Common wrong-order risk: Choosing the outside size instead of the inside size. Confirm product fit, void fill, and storage space before ordering.
Use the box size finder -> Get a delivered quote for larger orders -> Compare corrugated box types -> View products below ->
IN STOCK 19x12x3 White Corrugated Literature Mailers, 50-Pack (2 Bundles of 25)
Boxes - Mailers

19x12x3 White Corrugated Literature Mailers, 50-Pack (2 Bundles of 25)

PN: MFL19123

19 x 12 x 3 in ECT-32-B Corrugated 50 PER PACK
$174.70 / PACK
IN STOCK 9x4x4 ECT-32-B Kraft Corrugated Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

9x4x4 ECT-32-B Kraft Corrugated Mailers, 200-Pack (4 Bundles of 50)

PN: M944K

9 x 4 x 4 in ECT-32-B Corrugated 200 PER PACK
$212.20 / PACK
IN STOCK 11 1/8 x 8 3/4 x 2 in ECT-32-B Kraft Corrugated Literature Mailer, 200-Pack (4 Bundles of 50)
Boxes - Mailers

11 1/8 x 8 3/4 x 2 in ECT-32-B Kraft Corrugated Literature Mailer, 200-Pack (4 Bundles of 50)

PN: M1182K

11 1/8 x 8 3/4 x 2 in ECT-32-B Corrugated 200 PER PACK
$212.20 / PACK
IN STOCK 9.62x6.62x1.25 Kraft Easy Fold Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

9.62x6.62x1.25 Kraft Easy Fold Mailers, 200-Pack (4 Bundles of 50)

PN: M961K

9.625 x 6.625 x 1.25 in 200 PER PACK
$214.76 / PACK
IN STOCK 24x14x4 White Corrugated Literature Mailers, 50-Pack (2 Bundles of 25)
Boxes - Mailers

24x14x4 White Corrugated Literature Mailers, 50-Pack (2 Bundles of 25)

PN: MFL24144

24 x 14 x 4 in ECT-32-B Corrugated 50 PER PACK
$201.56 / PACK
IN STOCK 10.25x10.25x1 White Corrugated Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

10.25x10.25x1 White Corrugated Mailers, 200-Pack (4 Bundles of 50)

PN: M10101

10 1/4 x 10 1/4 x 1 in ECT-32-B Corrugated 200 PER PACK
$179.72 / PACK
IN STOCK 12.12x9.12x1 Kraft Easy Fold Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

12.12x9.12x1 Kraft Easy Fold Mailers, 200-Pack (4 Bundles of 50)

PN: M1291K

12.125 x 9.125 x 1 in 200 PER PACK
$194.00 / PACK
IN STOCK 9x6x4 ECT-32 Kraft Corrugated Mailers, 150-Pack (3 Bundles of 50)
Boxes - Mailers

9x6x4 ECT-32 Kraft Corrugated Mailers, 150-Pack (3 Bundles of 50)

PN: MLR964K

9 x 6 x 4 in ECT-32-B Corrugated 150 PER PACK
$211.47 / PACK
IN STOCK 11 x 11 x 2 Inch White Corrugated Literature Mailer Boxes, 150-Pack (3 Bundles of 50)
Boxes - Mailers

11 x 11 x 2 Inch White Corrugated Literature Mailer Boxes, 150-Pack (3 Bundles of 50)

PN: ML11112

11 x 11 x 2 in ECT-32-B Corrugated 150 PER PACK
$245.34 / PACK
IN STOCK 9x9x2 White Self-Seal Corrugated Literature Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

9x9x2 White Self-Seal Corrugated Literature Mailers, 200-Pack (4 Bundles of 50)

PN: ML992

9 x 9 x 2 in ECT-32-B Corrugated 200 PER PACK
$200.40 / PACK
IN STOCK 11 1/8 x 8 5/8 x 2 1/2 in White Corrugated Side Load Locking Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

11 1/8 x 8 5/8 x 2 1/2 in White Corrugated Side Load Locking Mailers, 200-Pack (4 Bundles of 50)

PN: MAL1182

11 1/8 x 8 5/8 x 2 1/2 in ECT-32-B Corrugated 200 PER PACK
$134.95 / PACK
IN STOCK 9x6x2 ECT-32 Kraft Corrugated Mailers, 150-Pack (3 Bundles of 50)
Boxes - Mailers

9x6x2 ECT-32 Kraft Corrugated Mailers, 150-Pack (3 Bundles of 50)

PN: MLR962K

9 x 6 x 2 in ECT-32 Single Wall Corrugated 150 PER PACK
$188.51 / PACK
IN STOCK 12x4x2 ECT-32 Kraft Corrugated Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

12x4x2 ECT-32 Kraft Corrugated Mailers, 200-Pack (4 Bundles of 50)

PN: M1242K

12 x 4 x 2 in ECT-32-B Corrugated 200 PER PACK
$125.56 / PACK
IN STOCK 11 1/8 x 8 3/4 x 5 in White Corrugated Literature Mailers, 100-Pack (2 Bundles of 50)
Boxes - Mailers

11 1/8 x 8 3/4 x 5 in White Corrugated Literature Mailers, 100-Pack (2 Bundles of 50)

PN: M1185

11 1/8 x 8 3/4 x 5 in ECT-32-B Corrugated 100 PER PACK
$214.86 / PACK
IN STOCK 10.25x8.25x1.25 White Corrugated Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

10.25x8.25x1.25 White Corrugated Mailers, 200-Pack (4 Bundles of 50)

PN: M1081

10 1/4 x 8.25 x 1 1/4 in ECT-32-B Corrugated 200 PER PACK
$167.11 / PACK
IN STOCK 10x10x4 Kraft Self-Seal Corrugated Literature Mailers, 100-Pack (2 Bundles of 50)
Boxes - Mailers

10x10x4 Kraft Self-Seal Corrugated Literature Mailers, 100-Pack (2 Bundles of 50)

PN: M10104K

10 x 10 x 4 in ECT-32-B Corrugated 100 PER PACK
$180.78 / PACK
IN STOCK 36 x 24 x 1/4 in ECT-32-B White Corrugated Jumbo Fold-Over Mailers, 40-Pack (2 Bundles of 20)
Boxes - Mailers

36 x 24 x 1/4 in ECT-32-B White Corrugated Jumbo Fold-Over Mailers, 40-Pack (2 Bundles of 20)

PN: M362414

36 x 24 x 1/4 in ECT-32-B Corrugated 40 PER PACK
$204.16 / PACK
IN STOCK 7x4x2 ECT-32-B White Corrugated Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

7x4x2 ECT-32-B White Corrugated Mailers, 200-Pack (4 Bundles of 50)

PN: M742

7 x 4 x 2 in ECT-32-B Corrugated 200 PER PACK
$100.10 / PACK
IN STOCK 12x4x2 ECT-32-B White Corrugated Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

12x4x2 ECT-32-B White Corrugated Mailers, 200-Pack (4 Bundles of 50)

PN: M1242

12 x 4 x 2 in ECT-32-B Corrugated 200 PER PACK
$143.72 / PACK
IN STOCK 18x12x4 White Corrugated Literature Mailers, 75-Pack (3 Bundles of 25)
Boxes - Mailers

18x12x4 White Corrugated Literature Mailers, 75-Pack (3 Bundles of 25)

PN: MFL18124

18 x 12 x 4 in ECT-32-B Corrugated 75 PER PACK
$225.85 / PACK
IN STOCK 9.625x6.625x2.5 White Corrugated Easy-Fold Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

9.625x6.625x2.5 White Corrugated Easy-Fold Mailers, 200-Pack (4 Bundles of 50)

PN: M962BF

9 5/8 x 6.625 x 2 1/2 in ECT-32-B Corrugated 200 PER PACK
$218.64 / PACK
IN STOCK 6x2x2 ECT-32-B White Corrugated Mailers, 150-Pack (3 Bundles of 50)
Boxes - Mailers

6x2x2 ECT-32-B White Corrugated Mailers, 150-Pack (3 Bundles of 50)

PN: M622

6 x 2 x 2 in ECT-32-B Corrugated 150 PER PACK
$51.48 / PACK
IN STOCK 12.5x12.5x2 White Corrugated Mailers, 150-Pack (3 Bundles of 50)
Boxes - Mailers

12.5x12.5x2 White Corrugated Mailers, 150-Pack (3 Bundles of 50)

PN: M12122BF

12 1/2 x 12 1/2 x 2 in ECT-32-B Corrugated 150 PER PACK
$201.02 / PACK
IN STOCK 10x8x1.5 Kraft Corrugated Literature Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

10x8x1.5 Kraft Corrugated Literature Mailers, 200-Pack (4 Bundles of 50)

PN: MFL1081K

10 x 8 x 1 1/2 in ECT-32-B Corrugated 200 PER PACK
$207.82 / PACK
IN STOCK 8x8x3 Kraft Fold-and-Tuck Corrugated Literature Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

8x8x3 Kraft Fold-and-Tuck Corrugated Literature Mailers, 200-Pack (4 Bundles of 50)

PN: ML883K

8 x 8 x 3 in ECT-32-B Corrugated 200 PER PACK
$226.82 / PACK
IN STOCK 12 1/8 x 9 1/4 x 4 in White Corrugated Literature Mailers Self-Seal, 100-Pack (2 Bundles of 50)
Boxes - Mailers

12 1/8 x 9 1/4 x 4 in White Corrugated Literature Mailers Self-Seal, 100-Pack (2 Bundles of 50)

PN: M1294

12 1/8 x 9 1/4 x 4 in ECT-32-B Corrugated 100 PER PACK
$175.24 / PACK
IN STOCK 9x6.25x2 ECT-32-B White Corrugated Literature Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

9x6.25x2 ECT-32-B White Corrugated Literature Mailers, 200-Pack (4 Bundles of 50)

PN: MFL962

9 x 6.25 x 2 in ECT-32-B Corrugated 200 PER PACK
$149.46 / PACK
IN STOCK 17.25x11.25x4 White Corrugated Literature Mailers, 75-Pack (3 Bundles of 25)
Boxes - Mailers

17.25x11.25x4 White Corrugated Literature Mailers, 75-Pack (3 Bundles of 25)

PN: ML17114

17 1/4 x 11.25 x 4 in ECT-32-B Corrugated 75 PER PACK
$192.29 / PACK
IN STOCK 14.25x11.25x4 White Corrugated Literature Mailers, 100-Pack (2 Bundles of 50)
Boxes - Mailers

14.25x11.25x4 White Corrugated Literature Mailers, 100-Pack (2 Bundles of 50)

PN: M14114

14 1/4 x 11.25 x 4 in ECT-32-B Corrugated 100 PER PACK
$209.64 / PACK
IN STOCK 8x5x3 ECT-32 White Corrugated Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

8x5x3 ECT-32 White Corrugated Mailers, 200-Pack (4 Bundles of 50)

PN: M853

8 x 5 x 3 in ECT-32-B Corrugated 200 PER PACK
$186.78 / PACK
IN STOCK 9.625x6.625x1.25 White Corrugated Easy-Fold Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

9.625x6.625x1.25 White Corrugated Easy-Fold Mailers, 200-Pack (4 Bundles of 50)

PN: M961

9 5/8 x 6.625 x 1 1/4 in ECT-32-B Corrugated 200 PER PACK
$133.86 / PACK
IN STOCK 14x4x4 ECT-32 White Corrugated Mailers, 150-Pack (3 Bundles of 50)
Boxes - Mailers

14x4x4 ECT-32 White Corrugated Mailers, 150-Pack (3 Bundles of 50)

PN: M1444

14 x 4 x 4 in ECT-32-B Corrugated 150 PER PACK
$216.62 / PACK
IN STOCK 12 1/8 x 9 1/4 x 2 in White Corrugated Literature Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

12 1/8 x 9 1/4 x 2 in White Corrugated Literature Mailers, 200-Pack (4 Bundles of 50)

PN: M1292

12 1/8 x 9 1/4 x 2 in ECT-32-B Corrugated 200 PER PACK
$216.30 / PACK
IN STOCK 8x7x2 ECT-32-B White Corrugated Literature Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

8x7x2 ECT-32-B White Corrugated Literature Mailers, 200-Pack (4 Bundles of 50)

PN: ML872

8 x 7 x 2 in ECT-32-B Corrugated 200 PER PACK
$170.91 / PACK
IN STOCK 6x4x2 ECT-32 White Corrugated Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

6x4x2 ECT-32 White Corrugated Mailers, 200-Pack (4 Bundles of 50)

PN: M642

6 x 4 x 2 in ECT-32-B Corrugated 200 PER PACK
$91.31 / PACK
IN STOCK 10x10x2 White Self-Seal Corrugated Literature Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

10x10x2 White Self-Seal Corrugated Literature Mailers, 200-Pack (4 Bundles of 50)

PN: M10102

10 x 10 x 2 in ECT-32-B Corrugated 200 PER PACK
$230.08 / PACK
IN STOCK 12 1/8 x 9 1/8 x 1 in White Corrugated Easy-Fold Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

12 1/8 x 9 1/8 x 1 in White Corrugated Easy-Fold Mailers, 200-Pack (4 Bundles of 50)

PN: M1291

12 1/8 x 9 1/8 x 1 in ECT-32-B Corrugated 200 PER PACK
$175.03 / PACK
IN STOCK 10.25x8.25x2 White Corrugated Literature Mailers, 200-Pack (4 Bundles of 50)
Boxes - Mailers

10.25x8.25x2 White Corrugated Literature Mailers, 200-Pack (4 Bundles of 50)

PN: ML1082

10 1/4 x 8.25 x 2 in ECT-32-B Corrugated 200 PER PACK
$226.94 / PACK

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