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 needs, send support the details before placing a large order.

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 calculator -> Contact support for larger orders -> Compare corrugated box types -> View products below ->
IN STOCK 14 1/8 x 8 5/8 x 1 in White Corrugated Easy-Fold Mailers 50/Bundle M1491 - alias listing
Boxes - Mailers

14 1/8 x 8 5/8 x 1 in White Corrugated Easy-Fold Mailers 50/Bundle M1491

PN: M1491

14 1/8 x 8 5/8 x 1 in ECT-32-B Corrugated 50 PER BUNDLE
$63.80 / BUNDLE
IN STOCK 14x14x4 White Corrugated Mailers 50-Pack M14144BF - alias listing
Boxes - Mailers

14x14x4 White Corrugated Mailers 50-Pack M14144BF

PN: M14144BF

14 x 14 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$168.40 / BUNDLE
IN STOCK 12.5x12.5x2 White Corrugated Mailers 50-Pack M12122BF - alias listing
Boxes - Mailers

12.5x12.5x2 White Corrugated Mailers 50-Pack M12122BF

PN: M12122BF

12 1/2 x 12 1/2 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$64.56 / BUNDLE
IN STOCK 12.5x12.5x1 White Corrugated Mailers 50-Pack M12121 - alias listing
Boxes - Mailers

12.5x12.5x1 White Corrugated Mailers 50-Pack M12121

PN: M12121

12 1/2 x 12 1/2 x 1 in ECT-32-B Corrugated 50 PER BUNDLE
$54.51 / BUNDLE
IN STOCK 12 1/8 x 9 1/8 x 3 in White Corrugated Easy-Fold Mailers 50/Bundle M1293BF - alias listing
Boxes - Mailers

12 1/8 x 9 1/8 x 3 in White Corrugated Easy-Fold Mailers 50/Bundle M1293BF

PN: M1293BF

12 1/8 x 9 1/8 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$157.97 / BUNDLE
IN STOCK 12x11.5x3 White Corrugated Mailers 50-Pack M12113BF - alias listing
Boxes - Mailers

12x11.5x3 White Corrugated Mailers 50-Pack M12113BF

PN: M12113BF

12 x 11.5 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$153.52 / BUNDLE
IN STOCK 11.75x10.5x2.25 White Corrugated Mailers 50-Pack M11102BF - alias listing
Boxes - Mailers

11.75x10.5x2.25 White Corrugated Mailers 50-Pack M11102BF

PN: M11102BF

11 3/4 x 10.5 x 2.25 in ECT-32-B Corrugated 50 PER BUNDLE
$101.11 / BUNDLE
IN STOCK 12x9x3 White Corrugated Mailers 50-Pack M12932BF - alias listing
Boxes - Mailers

12x9x3 White Corrugated Mailers 50-Pack M12932BF

PN: M12932BF

12 x 9 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$116.24 / BUNDLE
IN STOCK 11 1/8 x 8 5/8 x 4 in White Corrugated Easy-Fold Mailers 50-Pack M1BKXL - alias listing
Boxes - Mailers

11 1/8 x 8 5/8 x 4 in White Corrugated Easy-Fold Mailers 50-Pack M1BKXL

PN: M1BKXL

11 1/8 x 8 5/8 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$78.99 / BUNDLE
IN STOCK 11 1/8 x 8 5/8 x 2 in White Corrugated Easy-Fold Mailers 50-Pack M1BK - alias listing
Boxes - Mailers

11 1/8 x 8 5/8 x 2 in White Corrugated Easy-Fold Mailers 50-Pack M1BK

PN: M1BK

11 1/8 x 8 5/8 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$48.61 / BUNDLE
IN STOCK 11x8.5x3 White Corrugated Mailers 50-Pack M1183BF - alias listing
Boxes - Mailers

11x8.5x3 White Corrugated Mailers 50-Pack M1183BF

PN: M1183BF

11 x 8.5 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$109.23 / BUNDLE
IN STOCK 10.25x10.25x1 White Corrugated Mailers 50-Pack M10101 - alias listing
Boxes - Mailers

10.25x10.25x1 White Corrugated Mailers 50-Pack M10101

PN: M10101

10 1/4 x 10 1/4 x 1 in ECT-32-B Corrugated 50 PER BUNDLE
$43.29 / BUNDLE
IN STOCK 10.25x8.25x1.25 White Corrugated Mailers 50-Pack M1081 - alias listing
Boxes - Mailers

10.25x8.25x1.25 White Corrugated Mailers 50-Pack M1081

PN: M1081

10 1/4 x 8.25 x 1 1/4 in ECT-32-B Corrugated 50 PER BUNDLE
$40.26 / BUNDLE
IN STOCK 9.625x6.625x3.5 White Corrugated Easy-Fold Mailers 50-Pack M963BF - alias listing
Boxes - Mailers

9.625x6.625x3.5 White Corrugated Easy-Fold Mailers 50-Pack M963BF

PN: M963BF

9 5/8 x 6.625 x 3 1/2 in ECT-32-B Corrugated 50 PER BUNDLE
$77.50 / BUNDLE
IN STOCK 9.625x6.625x1.25 White Corrugated Easy-Fold Mailers 50/Bundle M961 - alias listing
Boxes - Mailers

9.625x6.625x1.25 White Corrugated Easy-Fold Mailers 50/Bundle M961

PN: M961

9 5/8 x 6.625 x 1 1/4 in ECT-32-B Corrugated 50 PER BUNDLE
$32.24 / BUNDLE
IN STOCK 9.5x6.5x3.5 White Corrugated Easy-Fold Mailers 50-Pack M9635BF - alias listing
Boxes - Mailers

9.5x6.5x3.5 White Corrugated Easy-Fold Mailers 50-Pack M9635BF

PN: M9635BF

9 1/2 x 6.5 x 3 1/2 in ECT-32-B Corrugated 50 PER BUNDLE
$93.00 / BUNDLE
IN STOCK 7.5x7.5x2 White Corrugated Easy-Fold Mailers 50-Pack M772BF - alias listing
Boxes - Mailers

7.5x7.5x2 White Corrugated Easy-Fold Mailers 50-Pack M772BF

PN: M772BF

7 1/2 x 7 1/2 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$60.52 / BUNDLE
IN STOCK 7.5x5.5x2 White Corrugated Easy-Fold Mailers 50-Pack M752BF - alias listing
Boxes - Mailers

7.5x5.5x2 White Corrugated Easy-Fold Mailers 50-Pack M752BF

PN: M752BF

7 1/2 x 5.5 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$54.40 / BUNDLE
IN STOCK 36.25x4.875x4 ECT-32-B White Corrugated Mailers 50/Bundle M3644 - alias listing
Boxes - Mailers

36.25x4.875x4 ECT-32-B White Corrugated Mailers 50/Bundle M3644

PN: M3644

36 1/4 x 4.875 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$110.89 / BUNDLE
IN STOCK 36x4x4 ECT-32 White Corrugated Mailers 50/Bundle MLR3644 - alias listing
Boxes - Mailers

36x4x4 ECT-32 White Corrugated Mailers 50/Bundle MLR3644

PN: MLR3644

36 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$150.39 / BUNDLE
IN STOCK 30x4x4 ECT-32 White Corrugated Mailers 50-Pack M3044 - alias listing
Boxes - Mailers

30x4x4 ECT-32 White Corrugated Mailers 50-Pack M3044

PN: M3044

30 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$140.52 / BUNDLE
IN STOCK 27.5x3.5x3.5 ECT-32 White Corrugated Mailers 50/Case M2733 - alias listing
Boxes - Mailers

27.5x3.5x3.5 ECT-32 White Corrugated Mailers 50/Case M2733

PN: M2733

27 1/2 x 3.5 x 3 1/2 in ECT-32-B Corrugated 50 PER BUNDLE
$69.12 / BUNDLE
IN STOCK 20x4x4 ECT-32-B White Corrugated Mailers 50-Pack M2044 - alias listing
Boxes - Mailers

20x4x4 ECT-32-B White Corrugated Mailers 50-Pack M2044

PN: M2044

20 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$96.46 / BUNDLE
IN STOCK 24x4x4 ECT-32 White Corrugated Mailers 50/Bundle M2444 - alias listing
Boxes - Mailers

24x4x4 ECT-32 White Corrugated Mailers 50/Bundle M2444

PN: M2444

24 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$97.98 / BUNDLE
IN STOCK 18x4x4 ECT-32 White Corrugated Mailers 50-Pack M1844 - alias listing
Boxes - Mailers

18x4x4 ECT-32 White Corrugated Mailers 50-Pack M1844

PN: M1844

18 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$82.79 / BUNDLE
IN STOCK 17.5x3.5x3.5 ECT-32 White Corrugated Mailers 50/Bundle MLR84 - alias listing
Boxes - Mailers

17.5x3.5x3.5 ECT-32 White Corrugated Mailers 50/Bundle MLR84

PN: MLR84

17 1/2 x 3.5 x 3 1/2 in ECT-32-B Corrugated 50 PER BUNDLE
$46.03 / BUNDLE
IN STOCK 17x6x6 ECT-32 White Corrugated Mailers 50-Pack M1766 - alias listing
Boxes - Mailers

17x6x6 ECT-32 White Corrugated Mailers 50-Pack M1766

PN: M1766

17 x 6 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$107.86 / BUNDLE
IN STOCK 16x6x6 ECT-32 White Corrugated Mailers 50-Pack M1666 - alias listing
Boxes - Mailers

16x6x6 ECT-32 White Corrugated Mailers 50-Pack M1666

PN: M1666

16 x 6 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$102.54 / BUNDLE
IN STOCK 16x6x4 ECT-32 White Corrugated Mailers 50-Pack M1664 - alias listing
Boxes - Mailers

16x6x4 ECT-32 White Corrugated Mailers 50-Pack M1664

PN: M1664

16 x 6 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$101.02 / BUNDLE
IN STOCK 16x5x5 ECT-32 White Corrugated Mailers 50-Pack M1655 - alias listing
Boxes - Mailers

16x5x5 ECT-32 White Corrugated Mailers 50-Pack M1655

PN: M1655

16 x 5 x 5 in ECT-32-B Corrugated 50 PER BUNDLE
$96.46 / BUNDLE
IN STOCK 15x2x2 ECT-32 White Corrugated Mailers 50-Pack M1522 - alias listing
Boxes - Mailers

15x2x2 ECT-32 White Corrugated Mailers 50-Pack M1522

PN: M1522

15 x 2 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$44.81 / BUNDLE
IN STOCK 14x6x4 ECT-32 White Corrugated Mailers 50-Pack M1464 - alias listing
Boxes - Mailers

14x6x4 ECT-32 White Corrugated Mailers 50-Pack M1464

PN: M1464

14 x 6 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$85.07 / BUNDLE
IN STOCK 14x4x4 ECT-32 White Corrugated Mailers 50-Pack M1444 - alias listing
Boxes - Mailers

14x4x4 ECT-32 White Corrugated Mailers 50-Pack M1444

PN: M1444

14 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$74.44 / BUNDLE
IN STOCK 14x6x2 ECT-32 White Corrugated Mailers 50-Pack M1462 - alias listing
Boxes - Mailers

14x6x2 ECT-32 White Corrugated Mailers 50-Pack M1462

PN: M1462

14 x 6 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$80.51 / BUNDLE
IN STOCK 14x3x3 ECT-32 White Corrugated Mailers 50-Pack M1433 - alias listing
Boxes - Mailers

14x3x3 ECT-32 White Corrugated Mailers 50-Pack M1433

PN: M1433

14 x 3 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$58.49 / BUNDLE
IN STOCK 12x9x3 ECT-32 White One-Piece Corrugated Mailers 50-Pack MLR1293 - alias listing
Boxes - Mailers

12x9x3 ECT-32 White One-Piece Corrugated Mailers 50-Pack MLR1293

PN: MLR1293

12 x 9 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$122.29 / BUNDLE
IN STOCK 12x9x4 ECT-32-B White Corrugated Mailers 50/Bundle MLR1294 - alias listing
Boxes - Mailers

12x9x4 ECT-32-B White Corrugated Mailers 50/Bundle MLR1294

PN: MLR1294

12 x 9 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$130.64 / BUNDLE
IN STOCK 12x6x6 ECT-32 White Corrugated Mailers 50-Pack M1266 - alias listing
Boxes - Mailers

12x6x6 ECT-32 White Corrugated Mailers 50-Pack M1266

PN: M1266

12 x 6 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$84.31 / BUNDLE
IN STOCK 12x9x2 ECT-32 White Corrugated Mailers 50/Bundle MLR1292 - alias listing
Boxes - Mailers

12x9x2 ECT-32 White Corrugated Mailers 50/Bundle MLR1292

PN: MLR1292

12 x 9 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$113.93 / BUNDLE
IN STOCK 12x5x4 ECT-32 White Corrugated Mailers 50-Pack M1254 - alias listing
Boxes - Mailers

12x5x4 ECT-32 White Corrugated Mailers 50-Pack M1254

PN: M1254

12 x 5 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$74.44 / BUNDLE
IN STOCK 12x5x5 ECT-32 White Corrugated Mailers 50-Pack M1255 - alias listing
Boxes - Mailers

12x5x5 ECT-32 White Corrugated Mailers 50-Pack M1255

PN: M1255

12 x 5 x 5 in ECT-32-B Corrugated 50 PER BUNDLE
$80.51 / BUNDLE
IN STOCK 12x4x4 ECT-32 White Corrugated Mailers 50-Pack M1244 - alias listing
Boxes - Mailers

12x4x4 ECT-32 White Corrugated Mailers 50-Pack M1244

PN: M1244

12 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$45.71 / BUNDLE
IN STOCK 12x4x3 ECT-32 White Corrugated Mailers 50-Pack M1243 - alias listing
Boxes - Mailers

12x4x3 ECT-32 White Corrugated Mailers 50-Pack M1243

PN: M1243

12 x 4 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$61.52 / BUNDLE
IN STOCK 12x4x2 ECT-32-B White Corrugated Mailers 50/Case M1242 - alias listing
Boxes - Mailers

12x4x2 ECT-32-B White Corrugated Mailers 50/Case M1242

PN: M1242

12 x 4 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$34.61 / BUNDLE
IN STOCK 12x3.5x3 ECT-32 White Corrugated Mailers 50-Pack MLR7 - alias listing
Boxes - Mailers

12x3.5x3 ECT-32 White Corrugated Mailers 50-Pack MLR7

PN: MLR7

12 x 3.5 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$36.02 / BUNDLE
IN STOCK 11.5x3.5x3.5 ECT-32 White Corrugated Mailers 50/Bundle MLRB - alias listing
Boxes - Mailers

11.5x3.5x3.5 ECT-32 White Corrugated Mailers 50/Bundle MLRB

PN: MLRB

11 1/2 x 3.5 x 3 1/2 in ECT-32-B Corrugated 50 PER BUNDLE
$35.70 / BUNDLE
IN STOCK 11x8x4 ECT-32-B White Corrugated Mailers 50/Bundle MLR1184 - alias listing
Boxes - Mailers

11x8x4 ECT-32-B White Corrugated Mailers 50/Bundle MLR1184

PN: MLR1184

11 x 8 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$97.98 / BUNDLE
IN STOCK 11x8x2 ECT-32 White Corrugated Mailers 50-Pack M1182R - alias listing
Boxes - Mailers

11x8x2 ECT-32 White Corrugated Mailers 50-Pack M1182R

PN: M1182R

11 x 8 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$94.19 / BUNDLE

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