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 12x9x2 Kraft Corrugated Literature Mailers 50-Pack ML1292RK - alias listing
Boxes - Mailers

12x9x2 Kraft Corrugated Literature Mailers 50-Pack ML1292RK

PN: ML1292RK

12 x 9 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$55.45 / BUNDLE
IN STOCK 11 3/4 x 10 3/4 x 2 1/4 in Kraft Literature Mailers Self-Seal 50/Bundle M3RBK - alias listing
Boxes - Mailers

11 3/4 x 10 3/4 x 2 1/4 in Kraft Literature Mailers Self-Seal 50/Bundle M3RBK

PN: M3RBK

11 3/4 x 10 3/4 x 2 1/4 in ECT-32-B Corrugated 50 PER BUNDLE
$75.20 / BUNDLE
IN STOCK 12x8x3 Kraft Corrugated Literature Mailers 50-Pack ML1283K - alias listing
Boxes - Mailers

12x8x3 Kraft Corrugated Literature Mailers 50-Pack ML1283K

PN: ML1283K

12 x 8 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$63.80 / BUNDLE
IN STOCK 11.5x11.5x3.75 Kraft Self-Seal Corrugated Literature Mailers 50-Pack M11113K - alias listing
Boxes - Mailers

11.5x11.5x3.75 Kraft Self-Seal Corrugated Literature Mailers 50-Pack M11113K

PN: M11113K

11 1/2 x 11 1/2 x 3 3/4 in ECT-32-B Corrugated 50 PER BUNDLE
$102.54 / BUNDLE
IN STOCK 11 1/8 x 8 3/4 x 4 in Kraft Literature Mailers Self-Seal 50/Bundle M1184K - alias listing
Boxes - Mailers

11 1/8 x 8 3/4 x 4 in Kraft Literature Mailers Self-Seal 50/Bundle M1184K

PN: M1184K

11 1/8 x 8 3/4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$79.75 / BUNDLE
IN STOCK 11 1/8 x 8 3/4 x 2 5/16 in Kraft Literature Mailers 50-Pack M1182DK - alias listing
Boxes - Mailers

11 1/8 x 8 3/4 x 2 5/16 in Kraft Literature Mailers 50-Pack M1182DK

PN: M1182DK

11 1/8 x 8 3/4 x 2 5/16 in ECT-32-B Corrugated 50 PER BUNDLE
$55.45 / BUNDLE
IN STOCK 11 1/8 x 8 3/4 x 3 in Kraft Literature Mailers Self-Seal 50/Bundle M1183K - alias listing
Boxes - Mailers

11 1/8 x 8 3/4 x 3 in Kraft Literature Mailers Self-Seal 50/Bundle M1183K

PN: M1183K

11 1/8 x 8 3/4 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$64.56 / BUNDLE
IN STOCK 11 1/8 x 8 3/4 x 2 in ECT-32-B Kraft Corrugated Literature Mailer 50/Bundle M1182K - alias listing
Boxes - Mailers

11 1/8 x 8 3/4 x 2 in ECT-32-B Kraft Corrugated Literature Mailer 50/Bundle M1182K

PN: M1182K

11 1/8 x 8 3/4 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$54.69 / BUNDLE
IN STOCK 10x10x4 Kraft Self-Seal Corrugated Literature Mailers 50-Pack M10104K - alias listing
Boxes - Mailers

10x10x4 Kraft Self-Seal Corrugated Literature Mailers 50-Pack M10104K

PN: M10104K

10 x 10 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$90.39 / BUNDLE
IN STOCK 10x10x3 Kraft Self-Seal Corrugated Literature Mailers 50/Bundle ML10103K - alias listing
Boxes - Mailers

10x10x3 Kraft Self-Seal Corrugated Literature Mailers 50/Bundle ML10103K

PN: ML10103K

10 x 10 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$130.64 / BUNDLE
IN STOCK 9x6.5x1.75 Kraft Literature Mailers 50/Bundle ML961K - alias listing
Boxes - Mailers

9x6.5x1.75 Kraft Literature Mailers 50/Bundle ML961K

PN: ML961K

9 x 6.5 x 1 3/4 in ECT-32-B Corrugated 50 PER BUNDLE
$40.26 / BUNDLE
IN STOCK 9x7.5x3 Kraft Self-Seal Corrugated Literature Mailers 50-Pack ML973K - alias listing
Boxes - Mailers

9x7.5x3 Kraft Self-Seal Corrugated Literature Mailers 50-Pack ML973K

PN: ML973K

9 x 7.5 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$53.17 / BUNDLE
IN STOCK 9x6.5x2.75 Kraft Self-Seal Literature Mailers 50-Pack M962K - alias listing
Boxes - Mailers

9x6.5x2.75 Kraft Self-Seal Literature Mailers 50-Pack M962K

PN: M962K

9 x 6.5 x 2 3/4 in ECT-32-B Corrugated 50 PER BUNDLE
$44.81 / BUNDLE
IN STOCK 9x6.25x4 Kraft Self-Seal Corrugated Literature Mailers 50-Pack M964K - alias listing
Boxes - Mailers

9x6.25x4 Kraft Self-Seal Corrugated Literature Mailers 50-Pack M964K

PN: M964K

9 x 6.25 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$78.23 / BUNDLE
IN STOCK 8x8x3 Kraft Fold-and-Tuck Corrugated Literature Mailers 50-Pack ML883K - alias listing
Boxes - Mailers

8x8x3 Kraft Fold-and-Tuck Corrugated Literature Mailers 50-Pack ML883K

PN: ML883K

8 x 8 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$56.21 / BUNDLE
IN STOCK 7.5x7x3.25 Kraft Self-Seal Literature Mailers 50-Pack MIBM1MK - alias listing
Boxes - Mailers

7.5x7x3.25 Kraft Self-Seal Literature Mailers 50-Pack MIBM1MK

PN: MIBM1MK

7 1/2 x 7 x 3 1/4 in ECT-32-B Corrugated 50 PER BUNDLE
$55.45 / BUNDLE
IN STOCK 7 3/8 x 7 3/8 x 1 3/8 in Kraft Literature Mailers 50-Pack MMC1K - alias listing
Boxes - Mailers

7 3/8 x 7 3/8 x 1 3/8 in Kraft Literature Mailers 50-Pack MMC1K

PN: MMC1K

7 3/8 x 7 3/8 x 1 3/8 in ECT-32-B Corrugated 50 PER BUNDLE
$48.43 / BUNDLE
IN STOCK 7 x 3 5/8 x 2 1/8 in ECT-32-B Kraft Corrugated Literature Mailers 50-Pack ML732K - alias listing
Boxes - Mailers

7 x 3 5/8 x 2 1/8 in ECT-32-B Kraft Corrugated Literature Mailers 50-Pack ML732K

PN: ML732K

7 x 3 5/8 x 2 1/8 in ECT-32-B Corrugated 50 PER BUNDLE
$28.86 / BUNDLE
IN STOCK 6x6x2 Kraft Self-Seal Corrugated Literature Mailers 50-Pack ML662K - alias listing
Boxes - Mailers

6x6x2 Kraft Self-Seal Corrugated Literature Mailers 50-Pack ML662K

PN: ML662K

6 x 6 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$35.70 / BUNDLE
IN STOCK 24x4x4 ECT-32 Kraft Corrugated Mailers 50-Pack M2444K - alias listing
Boxes - Mailers

24x4x4 ECT-32 Kraft Corrugated Mailers 50-Pack M2444K

PN: M2444K

24 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$76.75 / BUNDLE
IN STOCK 16x4x4 ECT-32 Kraft Corrugated Mailers 50-Pack M1644K - alias listing
Boxes - Mailers

16x4x4 ECT-32 Kraft Corrugated Mailers 50-Pack M1644K

PN: M1644K

16 x 4 x 4 in ECT-32 Single Wall Corrugated 50 PER BUNDLE
$89.63 / BUNDLE
IN STOCK 13.5x3.5x3.5 ECT-32-B Kraft Corrugated Mailers 50/Bundle MLRBLK - alias listing
Boxes - Mailers

13.5x3.5x3.5 ECT-32-B Kraft Corrugated Mailers 50/Bundle MLRBLK

PN: MLRBLK

13 1/2 x 3.5 x 3 1/2 in ECT-32-B Corrugated 50 PER BUNDLE
$42.47 / BUNDLE
IN STOCK 14x4x4 ECT-32 Kraft Corrugated Mailers 50-Pack M1444K - alias listing
Boxes - Mailers

14x4x4 ECT-32 Kraft Corrugated Mailers 50-Pack M1444K

PN: M1444K

14 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$69.88 / BUNDLE
IN STOCK 12x9x4 ECT-32-B Kraft Corrugated Mailers 50/Bundle MLR1294K - alias listing
Boxes - Mailers

12x9x4 ECT-32-B Kraft Corrugated Mailers 50/Bundle MLR1294K

PN: MLR1294K

12 x 9 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$107.86 / BUNDLE
IN STOCK 12x9x2 ECT-32 Kraft Corrugated Mailers 50/Bundle MLR1292K - alias listing
Boxes - Mailers

12x9x2 ECT-32 Kraft Corrugated Mailers 50/Bundle MLR1292K

PN: MLR1292K

12 x 9 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$107.86 / BUNDLE
IN STOCK 12x6x6 ECT-32 Kraft Corrugated Mailers 50-Pack M1266K - alias listing
Boxes - Mailers

12x6x6 ECT-32 Kraft Corrugated Mailers 50-Pack M1266K

PN: M1266K

12 x 6 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$89.63 / BUNDLE
IN STOCK 12x6x4 ECT-32 Kraft Corrugated Mailers 50-Pack M1264K - alias listing
Boxes - Mailers

12x6x4 ECT-32 Kraft Corrugated Mailers 50-Pack M1264K

PN: M1264K

12 x 6 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$72.92 / BUNDLE
IN STOCK 12x4x4 ECT-32 Kraft Corrugated Mailers 50-Pack M1244K - alias listing
Boxes - Mailers

12x4x4 ECT-32 Kraft Corrugated Mailers 50-Pack M1244K

PN: M1244K

12 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$61.52 / BUNDLE
IN STOCK 12x4x2 ECT-32 Kraft Corrugated Mailers 50-Pack M1242K - alias listing
Boxes - Mailers

12x4x2 ECT-32 Kraft Corrugated Mailers 50-Pack M1242K

PN: M1242K

12 x 4 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$30.38 / BUNDLE
IN STOCK 10x7x3 ECT-32 Kraft Corrugated Mailers 50-Pack M1073K - alias listing
Boxes - Mailers

10x7x3 ECT-32 Kraft Corrugated Mailers 50-Pack M1073K

PN: M1073K

10 x 7 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$79.75 / BUNDLE
IN STOCK 10x6x6 ECT-32 Kraft Corrugated Mailers 50-Pack M1066K - alias listing
Boxes - Mailers

10x6x6 ECT-32 Kraft Corrugated Mailers 50-Pack M1066K

PN: M1066K

10 x 6 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$76.75 / BUNDLE
IN STOCK 10x5x5 ECT-32 Kraft Corrugated Mailers 50-Pack M1055K - alias listing
Boxes - Mailers

10x5x5 ECT-32 Kraft Corrugated Mailers 50-Pack M1055K

PN: M1055K

10 x 5 x 5 in ECT-32-B Corrugated 50 PER BUNDLE
$69.88 / BUNDLE
IN STOCK 10x6x4 ECT-32 Kraft Corrugated Mailers 50-Pack M1064K - alias listing
Boxes - Mailers

10x6x4 ECT-32 Kraft Corrugated Mailers 50-Pack M1064K

PN: M1064K

10 x 6 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$71.40 / BUNDLE
IN STOCK 10x4x4 ECT-32 Kraft Corrugated Mailers 50-Pack M1044K - alias listing
Boxes - Mailers

10x4x4 ECT-32 Kraft Corrugated Mailers 50-Pack M1044K

PN: M1044K

10 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$58.49 / BUNDLE
IN STOCK 10x4x3 ECT-32 Kraft Corrugated Mailers 50-Pack M1043K - alias listing
Boxes - Mailers

10x4x3 ECT-32 Kraft Corrugated Mailers 50-Pack M1043K

PN: M1043K

10 x 4 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$35.77 / BUNDLE
IN STOCK 10x4x2 ECT-32 Kraft Corrugated Mailers 50-Pack M1042K - alias listing
Boxes - Mailers

10x4x2 ECT-32 Kraft Corrugated Mailers 50-Pack M1042K

PN: M1042K

10 x 4 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$47.09 / BUNDLE
IN STOCK 10x3x3 ECT-32 Kraft Corrugated Mailers 50-Pack M1033K - alias listing
Boxes - Mailers

10x3x3 ECT-32 Kraft Corrugated Mailers 50-Pack M1033K

PN: M1033K

10 x 3 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$67.16 / BUNDLE
IN STOCK 9x7x4 ECT-32-B Kraft Corrugated Mailers 50/Bundle M974K - alias listing
Boxes - Mailers

9x7x4 ECT-32-B Kraft Corrugated Mailers 50/Bundle M974K

PN: M974K

9 x 7 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$72.16 / BUNDLE
IN STOCK 9x6x4 ECT-32 Kraft Corrugated Mailers 50-Pack MLR964K - alias listing
Boxes - Mailers

9x6x4 ECT-32 Kraft Corrugated Mailers 50-Pack MLR964K

PN: MLR964K

9 x 6 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$69.88 / BUNDLE
IN STOCK 9x6x3 ECT-32-B Kraft Corrugated Mailers 50-Pack M963K - alias listing
Boxes - Mailers

9x6x3 ECT-32-B Kraft Corrugated Mailers 50-Pack M963K

PN: M963K

9 x 6 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$64.56 / BUNDLE
IN STOCK 9x6x2 ECT-32 Kraft Corrugated Mailers 50-Pack MLR962K - alias listing
Boxes - Mailers

9x6x2 ECT-32 Kraft Corrugated Mailers 50-Pack MLR962K

PN: MLR962K

9 x 6 x 2 in ECT-32 Single Wall Corrugated 50 PER BUNDLE
$62.28 / BUNDLE
IN STOCK 9x4x4 ECT-32-B Kraft Corrugated Mailers 50-Pack M944K - alias listing
Boxes - Mailers

9x4x4 ECT-32-B Kraft Corrugated Mailers 50-Pack M944K

PN: M944K

9 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$54.69 / BUNDLE
IN STOCK 8x6x4 ECT-32 Kraft Corrugated Mailers 50/Bundle M864K - alias listing
Boxes - Mailers

8x6x4 ECT-32 Kraft Corrugated Mailers 50/Bundle M864K

PN: M864K

8 x 6 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$92.40 / BUNDLE
IN STOCK 8x6x3 ECT-32-B Kraft Corrugated Mailers 50-Pack M863K - alias listing
Boxes - Mailers

8x6x3 ECT-32-B Kraft Corrugated Mailers 50-Pack M863K

PN: M863K

8 x 6 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$62.28 / BUNDLE
IN STOCK 8x6x2 ECT-32-B Kraft Corrugated Mailers 50-Pack M862K - alias listing
Boxes - Mailers

8x6x2 ECT-32-B Kraft Corrugated Mailers 50-Pack M862K

PN: M862K

8 x 6 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$61.52 / BUNDLE
IN STOCK 8x5x2 ECT-32-B Kraft Corrugated Mailers 50/Bundle M852K - alias listing
Boxes - Mailers

8x5x2 ECT-32-B Kraft Corrugated Mailers 50/Bundle M852K

PN: M852K

8 x 5 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$44.71 / BUNDLE
IN STOCK 8x4x3 ECT-32-B Kraft Corrugated Mailers 50-Pack M843K - alias listing
Boxes - Mailers

8x4x3 ECT-32-B Kraft Corrugated Mailers 50-Pack M843K

PN: M843K

8 x 4 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$49.37 / BUNDLE
IN STOCK 8x4x4 ECT-32 Kraft Corrugated Mailers 50-Pack M844K - alias listing
Boxes - Mailers

8x4x4 ECT-32 Kraft Corrugated Mailers 50-Pack M844K

PN: M844K

8 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$53.17 / BUNDLE

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