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 9x3x3 ECT-32-B Kraft Corrugated Mailers 50/Bundle M933K - alias listing
Boxes - Mailers

9x3x3 ECT-32-B Kraft Corrugated Mailers 50/Bundle M933K

PN: M933K

9 x 3 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$43.29 / BUNDLE
IN STOCK 9x6.5x4 Kraft Self-Seal Corrugated Literature Mailers 50-Pack ML964K - alias listing
Boxes - Mailers

9x6.5x4 Kraft Self-Seal Corrugated Literature Mailers 50-Pack ML964K

PN: ML964K

9 x 6.5 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$91.91 / CASE
IN STOCK 11 1/8 x 8 3/4 x 5 in White Corrugated Literature Mailers 50/Bundle M1185 - alias listing
Boxes - Mailers

11 1/8 x 8 3/4 x 5 in White Corrugated Literature Mailers 50/Bundle M1185

PN: M1185

11 1/8 x 8 3/4 x 5 in ECT-32-B Corrugated 50 PER BUNDLE
$103.30 / BUNDLE
IN STOCK 11.125x8.75x2 White Corrugated Literature Mailers 50-Pack MFL1182 - alias listing
Boxes - Mailers

11.125x8.75x2 White Corrugated Literature Mailers 50-Pack MFL1182

PN: MFL1182

11 1/8 x 8 3/4 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$57.75 / BUNDLE
IN STOCK 9.625x6.625x2.5 White Corrugated Easy-Fold Mailers 50/Bundle M962BF - alias listing
Boxes - Mailers

9.625x6.625x2.5 White Corrugated Easy-Fold Mailers 50/Bundle M962BF

PN: M962BF

9 5/8 x 6.625 x 2 1/2 in ECT-32-B Corrugated 50 PER BUNDLE
$52.91 / BUNDLE
IN STOCK 15 1/8 x 11 1/8 x 3 in Kraft Deluxe Literature Mailer 50-Pack MFL15113K - alias listing
Boxes - Mailers

15 1/8 x 11 1/8 x 3 in Kraft Deluxe Literature Mailer 50-Pack MFL15113K

PN: MFL15113K

15 1/8 x 11 1/8 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$111.03 / BUNDLE
IN STOCK 5x4x4 ECT-32-B Kraft Corrugated Mailers 50/Bundle M544K - alias listing
Boxes - Mailers

5x4x4 ECT-32-B Kraft Corrugated Mailers 50/Bundle M544K

PN: M544K

5 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$44.81 / BUNDLE
IN STOCK 22x18x2.75 White Corrugated Literature Mailers 25-Pack MFL22182 - alias listing
Boxes - Mailers

22x18x2.75 White Corrugated Literature Mailers 25-Pack MFL22182

PN: MFL22182

22 x 18 x 2 3/4 in ECT-32-B Corrugated 25 PER BUNDLE
$97.98 / BUNDLE
IN STOCK 11.125x8.75x6 Kraft Corrugated Literature Mailers 50-Pack M1186K - alias listing
Boxes - Mailers

11.125x8.75x6 Kraft Corrugated Literature Mailers 50-Pack M1186K

PN: M1186K

11 1/8 x 8 3/4 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$110.14 / BUNDLE
IN STOCK 12 1/8 x 9 1/8 x 2 in White Corrugated Easy-Fold Mailers 50-Pack M2BK - alias listing
Boxes - Mailers

12 1/8 x 9 1/8 x 2 in White Corrugated Easy-Fold Mailers 50-Pack M2BK

PN: M2BK

12 1/8 x 9 1/8 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$47.12 / BUNDLE
IN STOCK 12x2x2 ECT-32 White Corrugated Mailers 50-Pack M1222 - alias listing
Boxes - Mailers

12x2x2 ECT-32 White Corrugated Mailers 50-Pack M1222

PN: M1222

12 x 2 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$34.94 / BUNDLE
IN STOCK 8x5x4 ECT-32-B Kraft Corrugated Mailers 50/Bundle M854K - alias listing
Boxes - Mailers

8x5x4 ECT-32-B Kraft Corrugated Mailers 50/Bundle M854K

PN: M854K

8 x 5 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$47.85 / BUNDLE
IN STOCK 18.25x11.375x2.6875 ECT-32 White Corrugated Carrying Case with Handles 10/Bundle MCC2 - alias listing
Boxes - Mailers

18.25x11.375x2.6875 ECT-32 White Corrugated Carrying Case with Handles 10/Bundle MCC2

PN: MCC2

18 1/4 x 11.375 x 2 11/16 in ECT-32-B Corrugated 10 PER BUNDLE
$36.15 / BUNDLE
IN STOCK 5 5/8 x 5 x 2 9/16 in White Corrugated CD Mailers 50-Pack MLRCD6 - alias listing
Boxes - Mailers

5 5/8 x 5 x 2 9/16 in White Corrugated CD Mailers 50-Pack MLRCD6

PN: MLRCD6

5 5/8 x 5 x 2 9/16 in ECT-32-B Corrugated 50 PER BUNDLE
$55.45 / BUNDLE
IN STOCK 12 1/8 x 9 1/8 x 4 in White Corrugated Easy-Fold Mailers 50-Pack M2BKXL - alias listing
Boxes - Mailers

12 1/8 x 9 1/8 x 4 in White Corrugated Easy-Fold Mailers 50-Pack M2BKXL

PN: M2BKXL

12 1/8 x 9 1/8 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$113.26 / BUNDLE
IN STOCK 15 1/8 x 11 1/8 x 2 in Kraft Literature Mailers 50-Pack MIBMS500K - alias listing
Boxes - Mailers

15 1/8 x 11 1/8 x 2 in Kraft Literature Mailers 50-Pack MIBMS500K

PN: MIBMS500K

15 1/8 x 11 1/8 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$85.07 / BUNDLE
IN STOCK 12x12x4 Kraft Self-Seal Corrugated Literature Mailers 50-Pack ML12124K - alias listing
Boxes - Mailers

12x12x4 Kraft Self-Seal Corrugated Literature Mailers 50-Pack ML12124K

PN: ML12124K

12 x 12 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$111.03 / BUNDLE
IN STOCK 5x4x3 ECT-32-B White Corrugated Mailers 50-Pack M543 - alias listing
Boxes - Mailers

5x4x3 ECT-32-B White Corrugated Mailers 50-Pack M543

PN: M543

5 x 4 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$30.97 / BUNDLE
IN STOCK 14.25x11.25x4 White Corrugated Literature Mailers 50-Pack M14114 - alias listing
Boxes - Mailers

14.25x11.25x4 White Corrugated Literature Mailers 50-Pack M14114

PN: M14114

14 1/4 x 11.25 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$104.82 / BUNDLE
IN STOCK 12 1/8 x 9 1/4 x 2 in White Corrugated Literature Mailers 50-Pack M1292 - alias listing
Boxes - Mailers

12 1/8 x 9 1/4 x 2 in White Corrugated Literature Mailers 50-Pack M1292

PN: M1292

12 1/8 x 9 1/4 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$54.21 / BUNDLE
IN STOCK 12x12x1.25 White Self-Seal Corrugated Literature Mailers 50-Pack ML12121 - alias listing
Boxes - Mailers

12x12x1.25 White Self-Seal Corrugated Literature Mailers 50-Pack ML12121

PN: ML12121

12 x 12 x 1 1/4 in ECT-32-B Corrugated 50 PER BUNDLE
$79.75 / BUNDLE
IN STOCK 6x6x1.25 White Self-Seal Corrugated Literature Mailers 50-Pack ML661 - alias listing
Boxes - Mailers

6x6x1.25 White Self-Seal Corrugated Literature Mailers 50-Pack ML661

PN: ML661

6 x 6 x 1 1/4 in ECT-32-B Corrugated 50 PER BUNDLE
$33.42 / BUNDLE
IN STOCK 24x2x2 ECT-32-B White Corrugated Mailers 50/Bundle M2422 - alias listing
Boxes - Mailers

24x2x2 ECT-32-B White Corrugated Mailers 50/Bundle M2422

PN: M2422

24 x 2 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$61.52 / BUNDLE
IN STOCK 12x6x2 ECT-32 White Corrugated Mailers 50-Pack M1262 - alias listing
Boxes - Mailers

12x6x2 ECT-32 White Corrugated Mailers 50-Pack M1262

PN: M1262

12 x 6 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$72.92 / BUNDLE
IN STOCK 10x8x6 ECT-32 White Corrugated Mailers 50-Pack M1086 - alias listing
Boxes - Mailers

10x8x6 ECT-32 White Corrugated Mailers 50-Pack M1086

PN: M1086

10 x 8 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$101.78 / BUNDLE
IN STOCK 7x5x4 White Corrugated Literature Mailers 50-Pack M754 - alias listing
Boxes - Mailers

7x5x4 White Corrugated Literature Mailers 50-Pack M754

PN: M754

7 x 5 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$44.38 / BUNDLE
IN STOCK 6x4x2 ECT-32 White Corrugated Mailers 50-Pack M642 - alias listing
Boxes - Mailers

6x4x2 ECT-32 White Corrugated Mailers 50-Pack M642

PN: M642

6 x 4 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$22.46 / BUNDLE
IN STOCK 7x4x1 ECT-32 White Corrugated Mailers 50-Pack M741 - alias listing
Boxes - Mailers

7x4x1 ECT-32 White Corrugated Mailers 50-Pack M741

PN: M741

7 x 4 x 1 in ECT-32-B Corrugated 50 PER BUNDLE
$37.22 / BUNDLE
IN STOCK 12 1/8 x 9 1/4 x 2 in Kraft Literature Mailers Self-Seal 50/Bundle M1292K - alias listing
Boxes - Mailers

12 1/8 x 9 1/4 x 2 in Kraft Literature Mailers Self-Seal 50/Bundle M1292K

PN: M1292K

12 1/8 x 9 1/4 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$53.17 / BUNDLE
IN STOCK 7x5x2 ECT-32 Kraft Corrugated Mailers 50-Pack M752K - alias listing
Boxes - Mailers

7x5x2 ECT-32 Kraft Corrugated Mailers 50-Pack M752K

PN: M752K

7 x 5 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$51.65 / BUNDLE
IN STOCK 5x5x5 ECT-32-B Kraft Corrugated Mailers 50/Bundle M555K - alias listing
Boxes - Mailers

5x5x5 ECT-32-B Kraft Corrugated Mailers 50/Bundle M555K

PN: M555K

5 x 5 x 5 in ECT-32-B Corrugated 50 PER BUNDLE
$60.00 / BUNDLE
IN STOCK 14x10x4 Kraft Corrugated Literature Mailers 50/Bundle MFL14104K - alias listing
Boxes - Mailers

14x10x4 Kraft Corrugated Literature Mailers 50/Bundle MFL14104K

PN: MFL14104K

14 x 10 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$132.92 / BUNDLE
IN STOCK 15x12x2 White Corrugated Literature Mailers 50-Pack ML15122 - alias listing
Boxes - Mailers

15x12x2 White Corrugated Literature Mailers 50-Pack ML15122

PN: ML15122

15 x 12 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$104.82 / BUNDLE
IN STOCK 12x9x3 White Self-Seal Corrugated Literature Mailers 50-Pack ML1293 - alias listing
Boxes - Mailers

12x9x3 White Self-Seal Corrugated Literature Mailers 50-Pack ML1293

PN: ML1293

12 x 9 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$106.34 / BUNDLE
IN STOCK 12x9x2 White Corrugated Literature Mailers 50/Bundle ML1292R - alias listing
Boxes - Mailers

12x9x2 White Corrugated Literature Mailers 50/Bundle ML1292R

PN: ML1292R

12 x 9 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$60.00 / BUNDLE
IN STOCK 24x24x2 White Corrugated Easy-Fold Mailers 20-Pack M24242BF - alias listing
Boxes - Mailers

24x24x2 White Corrugated Easy-Fold Mailers 20-Pack M24242BF

PN: M24242BF

24 x 24 x 2 in ECT-32-B Corrugated 20 PER BUNDLE
$108.20 / BUNDLE
IN STOCK 12 1/8 x 9 1/8 x 1 in White Corrugated Easy-Fold Mailers 50-Pack M1291 - alias listing
Boxes - Mailers

12 1/8 x 9 1/8 x 1 in White Corrugated Easy-Fold Mailers 50-Pack M1291

PN: M1291

12 1/8 x 9 1/8 x 1 in ECT-32-B Corrugated 50 PER BUNDLE
$43.05 / BUNDLE
IN STOCK 11 1/8 x 8 5/8 x 1 in White Corrugated Easy-Fold Mailers 50-Pack M1181 - alias listing
Boxes - Mailers

11 1/8 x 8 5/8 x 1 in White Corrugated Easy-Fold Mailers 50-Pack M1181

PN: M1181

11 1/8 x 8 5/8 x 1 in ECT-32-B Corrugated 50 PER BUNDLE
$44.81 / BUNDLE
IN STOCK 9.5x6.5x2 White Corrugated Easy-Fold Mailers 50-Pack M9621BF - alias listing
Boxes - Mailers

9.5x6.5x2 White Corrugated Easy-Fold Mailers 50-Pack M9621BF

PN: M9621BF

9 1/2 x 6.5 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$53.17 / BUNDLE
IN STOCK 9x9x2 Kraft Self-Seal Corrugated Literature Mailers 50/Bundle ML992K - alias listing
Boxes - Mailers

9x9x2 Kraft Self-Seal Corrugated Literature Mailers 50/Bundle ML992K

PN: ML992K

9 x 9 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$45.57 / BUNDLE
IN STOCK 24x14x4 White Corrugated Literature Mailers 25-Pack MFL24144 - alias listing
Boxes - Mailers

24x14x4 White Corrugated Literature Mailers 25-Pack MFL24144

PN: MFL24144

24 x 14 x 4 in ECT-32-B Corrugated 25 PER BUNDLE
$94.18 / BUNDLE
IN STOCK 32x22x6 Kraft Multi-Depth Jumbo Mailers 20/Bundle M32226 - alias listing
Boxes - Mailers

32x22x6 Kraft Multi-Depth Jumbo Mailers 20/Bundle M32226

PN: M32226

32 x 22 x 6 in ECT-32-C Corrugated 20 PER BUNDLE
$133.38 / BUNDLE
IN STOCK 12x10x4 White Corrugated Literature Mailers 50-Pack MFL12104 - alias listing
Boxes - Mailers

12x10x4 White Corrugated Literature Mailers 50-Pack MFL12104

PN: MFL12104

12 x 10 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$148.87 / BUNDLE
IN STOCK 10x8x1.5 Kraft Corrugated Literature Mailers 50-Pack MFL1081K - alias listing
Boxes - Mailers

10x8x1.5 Kraft Corrugated Literature Mailers 50-Pack MFL1081K

PN: MFL1081K

10 x 8 x 1 1/2 in ECT-32-B Corrugated 50 PER BUNDLE
$54.69 / BUNDLE
IN STOCK 20 x 11 3/8 x 5 1/2 in White Corrugated Carrying Cases with Handles 10/Bundle MCC5 - alias listing
Boxes - Mailers

20 x 11 3/8 x 5 1/2 in White Corrugated Carrying Cases with Handles 10/Bundle MCC5

PN: MCC5

20 x 11 3/8 x 5 1/2 in ECT-32-B Corrugated 10 PER BUNDLE
$61.37 / BUNDLE
IN STOCK 17x14x1 White Stayflats Gusseted Mailers
Envelopes & Mailers

17x14x1 White Stayflats Gusseted Mailers

PN: RM4G

14 x 17 x 1 in
$185.47 / CASE
IN STOCK 15x12.5x1 White Stayflats Gusseted Mailers
Envelopes & Mailers

15x12.5x1 White Stayflats Gusseted Mailers

PN: RM3G

12.5 x 15 x 1 in
$135.49 / CASE
IN STOCK 15x11.12x2 Kraft Easy Fold Mailers 50-Pack
Boxes - Mailers

15x11.12x2 Kraft Easy Fold Mailers 50-Pack

PN: MIBMROSK

15 x 11.125 x 2 in 50 PER PACK
$101.34 / EACH

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