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 Space-efficient 3x3x3 kraft corrugated mailers manufactured from durable ECT-32-B material deliver double-wall crush resistance with a one-piece fold design–no tape, glue, or staples required. Bundle of 50 ships and stores flat, reducing warehouse footprint and freight costs while maintaining superior product protection for small items, tools, and fragile goods.
Boxes - Mailers

3x3x3 ECT-32-B Kraft Corrugated Mailers 50/Bundle

PN: M333K

3 x 3 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$28.32 / BUNDLE
IN STOCK Ship small items faster and cheaper with these 3x3x2 kraft corrugated mailers. ECT-32-B construction delivers crush-resistant protection with double-wall coverage on front and sides. One-piece fold-and-tuck design eliminates tape, glue, and staples–assemble in seconds and store flat to maximize warehouse space.
Boxes - Mailers

3x3x2 ECT-32-B Kraft Corrugated Mailers 50-Pack

PN: M332K

3 x 3 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$22.03 / BUNDLE
IN STOCK Professional-grade white jumbo fold-over mailers designed for oversized posters, portfolios, and flat documents. Features durable ECT-32-B corrugated construction with secure fold-and-seal closure. Sold in bundles of 20 for cost-effective bulk shipping.
Boxes - Mailers

38x26x1 ECT-32-B White Jumbo Corrugated Fold-Over Mailers 20/Bundle

PN: M38261

38 x 26 x 1 in ECT-32-B Corrugated 20 PER BUNDLE
$202.98 / BUNDLE
IN STOCK Professional-grade 36x24x1 white corrugated fold-over mailers built from durable ECT-32-B material for maximum puncture resistance. Ideal for e-commerce brands shipping oversized posters, portfolios, and flat merchandise. Bundle of 20 mailers with one-piece folding design and self-sealing capability.
Boxes - Mailers

36x24x1 ECT-32-B White Corrugated Fold-Over Mailers 20/Bundle

PN: M36241

36 x 24 x 1 in ECT-32-B Corrugated 20 PER BUNDLE
$103.30 / BUNDLE
IN STOCK Professional-grade 36x24x1/4
Boxes - Mailers

36 x 24 x 1/4 in ECT-32-B White Corrugated Jumbo Fold-Over Mailers 20/Bundle

PN: M362414

36 x 24 x 1/4 in ECT-32-B Corrugated 20 PER BUNDLE
$95.40 / BUNDLE
IN STOCK Professional-grade 30x22.5x1 white corrugated fold-over mailers built with ECT-32-B strength for reliable protection of oversized items. One-piece design folds flat for easy storage and assembly. Bundle of 20 mailers ready to ship your portfolios, posters, and flat products with confidence.
Boxes - Mailers

30x22.5x1 ECT-32-B White Corrugated Fold-Over Mailers 20/Bundle

PN: M30221

30 x 22.5 x 1 in ECT-32-B Corrugated 20 PER BUNDLE
$110.59 / BUNDLE
IN STOCK Professional-grade white corrugated fold-over mailers sized 30
Boxes - Mailers

30x22.5 ECT-32-B White Corrugated Fold-Over Mailers 20/Bundle

PN: M302214

30 x 22.5 x 1/4 in ECT-32-B Corrugated 20 PER BUNDLE
$104.82 / BUNDLE
IN STOCK Professional-grade 28x22x1/4
Boxes - Mailers

28 x 22 x 1/4 in ECT-32-B White Corrugated Jumbo Fold-Over Mailers 20-Pack

PN: ML28221

28 x 22 x 1/4 in ECT-32-B Corrugated 20 PER BUNDLE
$102.39 / BUNDLE
IN STOCK Ship oversized posters, portfolios, and flat items with confidence using these professional-grade 20x16x1 white corrugated fold-over mailers. Built with strong ECT-32-B corrugated material for puncture resistance and reliable protection. Bundle of 20 mailers ready to stock your e-commerce fulfillment operation.
Boxes - Mailers

20x16x1 ECT-32 White Corrugated Mailers 20-Pack

PN: M20161

20 x 16 x 1 in ECT-32-B Corrugated 20 PER BUNDLE
$48.00 / BUNDLE
IN STOCK Heavy-duty ECT-32-B white corrugated fold-over mailers sized 20
Boxes - Mailers

20 x 16 x 1/4 in ECT-32-B White Corrugated Fold-Over Mailers 20/Bundle

PN: M201614

20 x 16 x 1/4 in ECT-32-B Corrugated 20 PER BUNDLE
$79.58 / BUNDLE
IN STOCK Professional jumbo mailers in hard-to-find 36x12x6 dimensions, built from sturdy ECT-32-C kraft corrugated. Multi-depth score lines allow flexible packing of various product sizes without wasted space. Sold as a bundle of 20 for wholesale pricing.
Boxes - Mailers

36x12x6 Kraft Multi-Depth Corrugated Jumbo Mailers 20/Bundle

PN: M36126

36 x 12 x 6 in ECT-32-C Corrugated 20 PER BUNDLE
$108.79 / BUNDLE
IN STOCK Ship large items with confidence using our 32x22x6 kraft jumbo mailers–engineered from ECT-32-C corrugated material for maximum puncture resistance and professional presentation. Multi-depth die-cut scoring adapts to products of varying heights, eliminating wasted space and reducing dimensional weight charges. Each bundle of 20 mailers combines durability, sustainability, and cost efficiency for high-volume e-commerce operations.
Boxes - Mailers

32x22x6 Kraft Multi-Depth Jumbo Mailers 20/Bundle

PN: M32226

32 x 22 x 6 in ECT-32-C Corrugated 20 PER BUNDLE
$133.38 / BUNDLE
IN STOCK Premium 30x24x6 kraft jumbo mailers built from ECT-32-C corrugated material for superior puncture resistance and professional brand presentation. Multi-depth scoring adapts to items 2–6 inches tall, eliminating excess void fill waste. Sold as a bundle of 20 ready-to-fold mailers.
Boxes - Mailers

30x24x6 ECT-32 Kraft Multi-Depth Corrugated Jumbo Mailers 20/Bundle

PN: M30246

30 x 24 x 6 in ECT-32-C Corrugated 20 PER BUNDLE
$153.13 / BUNDLE
IN STOCK Professional-grade 30x22x6 kraft jumbo mailers engineered for large e-commerce shipments. Multi-depth scored design adapts to varying product heights while maintaining structural integrity. ECT-32-C corrugated construction resists punctures and impacts. Bundle of 20 ready to ship.
Boxes - Mailers

30x22x6 Kraft Multi-Depth Corrugated Jumbo Mailers 20/Bundle

PN: M30226

30 x 22 x 6 in ECT-32-C Corrugated 20 PER BUNDLE
$144.32 / BUNDLE
IN STOCK Kraft jumbo mailers in the hard-to-find 28x24x6 size that e-commerce brands need for oversized items. Multi-depth scored corrugated mailers provide flexibility for variable product heights while maintaining professional presentation. Bundle of 20 units.
Boxes - Mailers

28x24x6 ECT-32 Kraft Multi-Depth Corrugated Jumbo Mailers 20/Bundle

PN: M28246

28 x 24 x 6 in ECT-32-C Corrugated 20 PER BUNDLE
$153.13 / BUNDLE
IN STOCK Professional-grade 28x22x6 kraft jumbo mailers engineered for e-commerce brands shipping oversized items. Multi-depth scored corrugated construction provides superior puncture resistance and product protection. Bundle of 20 mailers ready to ship.
Boxes - Mailers

28x22x6 Kraft Multi-Depth Corrugated Jumbo Mailers 20/Bundle

PN: M28226

28 x 22 x 6 in ECT-32-C Corrugated 20 PER BUNDLE
$138.30 / BUNDLE
IN STOCK Ship large items with confidence using these 26x20x6 kraft jumbo mailers. Multi-depth scored design provides flexibility for products 2-6 inches deep, while ECT-32-C corrugated construction ensures puncture resistance and professional protection. Bundle of 20 units ready to ship.
Boxes - Mailers

26x20x6 Kraft Multi-Depth Corrugated Jumbo Mailers 20/Bundle

PN: M26206

26 x 20 x 6 in ECT-32-C Corrugated 20 PER BUNDLE
$144.56 / BUNDLE
IN STOCK Professional 24x24x6 kraft jumbo mailers built from durable ECT-32-C corrugated material with multi-depth scoring for flexible packaging solutions. Each bundle includes 20 ready-to-fold mailers that reduce dimensional weight charges while maintaining puncture-resistant protection. Ideal for e-commerce brands shipping large, flat items like artwork, frames, and apparel.
Boxes - Mailers

24x24x6 ECT-32-C Kraft Multi-Depth Corrugated Jumbo Mailers 20/Bundle

PN: M24246

24 x 24 x 6 in ECT-32-C Corrugated 20 PER BUNDLE
$142.80 / BUNDLE
IN STOCK Hard-to-find 24x20x6 jumbo mailers designed for large e-commerce shipments. Multi-depth scored corrugated kraft construction adapts to your product size, reducing void fill needs. Bundle of 20 boxes ships ready to fold and mail.
Boxes - Mailers

24x20x6 Kraft Multi-Depth Corrugated Jumbo Mailers 20/Bundle

PN: M24206

24 x 20 x 6 in ECT-32-C Corrugated 20 PER BUNDLE
$140.39 / BUNDLE
IN STOCK Ship oversized products professionally with our 24x18x6 kraft jumbo mailers. Each bundle includes 20 ECT-32 corrugated mailers featuring multi-depth fold-and-tuck design for flexible packaging. One-piece construction eliminates assembly time and reduces material waste.
Boxes - Mailers

24x18x6 Kraft Multi-Depth Jumbo Mailers 20/Bundle

PN: M24186

24 x 18 x 6 in ECT-32-C Corrugated 20 PER BUNDLE
$129.36 / BUNDLE
IN STOCK Ship oversized items with confidence using these 22x18x6 kraft jumbo mailers. Multi-depth scored design adapts to packages 2-6 inches deep, eliminating the need for multiple SKUs. ECT-32-C corrugated construction ensures durability and professional presentation–20 per bundle.
Boxes - Mailers

22x18x6 Kraft Multi-Depth Easy-Fold Jumbo Mailers 20/Bundle

PN: M22186

22 x 18 x 6 in ECT-32-C Corrugated 20 PER BUNDLE
$118.63 / BUNDLE
IN STOCK Ship large, flat items with professional impact using these 20x20x6 kraft jumbo mailers. Multi-depth scored design adapts to your product size–from 2
Boxes - Mailers

20x20x6 Kraft Multi-Depth Jumbo Mailers 20/Bundle

PN: M20206

20 x 20 x 6 in ECT-32-C Corrugated 20 PER BUNDLE
$126.68 / BUNDLE
IN STOCK Hard-to-find 20x16x6
Boxes - Mailers

20x16x6 Kraft Multi-Depth Jumbo Mailers 20/Bundle

PN: M20166

20 x 16 x 6 in ECT-32-C Corrugated 20 PER BUNDLE
$113.56 / BUNDLE
IN STOCK Professional-grade kraft garment mailers designed for shipping coats, jackets, and bulky outerwear. These one-piece corrugated mailers fold together instantly without tape or glue–ship faster, cut costs. ECT-32-B strength withstands handling. Sold in bundles of 25.
Boxes - Mailers

28.75x16x5 Kraft One-Piece Corrugated Garment Mailers 25/Bundle

PN: MFCKRAFT

28 3/4 x 16 x 5 in ECT-32-B Corrugated 25 PER BUNDLE
$112.79 / BUNDLE
IN STOCK Professional-grade kraft corrugated garment mailers designed for e-commerce brands shipping bulky apparel. These one-piece fold-and-tuck mailers feature ECT-32-B crush-resistant construction and require no tape or glue. Sold as a convenient bundle of 25, shipped flat.
Boxes - Mailers

24.5x14.25x4.5 Kraft Corrugated Garment Mailers 25/Bundle

PN: MFJKRAFT

24 1/2 x 14.25 x 4 1/2 in ECT-32-B Corrugated 25 PER BUNDLE
$86.97 / BUNDLE
IN STOCK Protect your audio and video CDs in transit with these self-sealing foam lined CD mailers. Engineered from 100% recycled white fibreboard, each 5 1/8x5 mailer features integrated foam cushioning and tear-strip access for professional presentation. Order your case of 100 today.
Boxes - Mailers

5 1/8 x 5 in White Recycled Foam Lined CD Mailers Crush Resistant 100/Case

PN: MM1150

5 1/8 x 5 in 100% Recycled Fibreboard 100 PER CASE
$302.65 / CASE
IN STOCK Protect your CDs and DVDs with professional-grade white fibreboard mailers featuring self-seal closure and superior crush resistance. Made from 100% recycled paperboard, these 5 1/8
Boxes - Mailers

5 1/8 x 5 in White Fibreboard CD Mailers 100/Case

PN: MM1145

5 1/8 x 5 in 100% Recycled Paperboard 100 PER CASE
$146.37 / CASE
IN STOCK Protect 1-4 DVDs with professional-grade white corrugated mailers that fold in seconds without tape or glue. Built from 200#/ECT-32-B flute corrugated for crush resistance and optimal presentation. Bundle of 50 ready to ship.
Boxes - Mailers

7 5/8 x 6 x 5 7/16 in White Corrugated DVD Mailers Crush Resistant 50-Pack

PN: MLRDVD10

7 5/8 x 6 x 5 7/16 in ECT-32-B Corrugated 50 PER BUNDLE
$140.23 / BUNDLE
IN STOCK Protect your DVD shipments with professional-grade white corrugated mailers that fold instantly without tape or glue. This 50-pack of 7 5/8 x 5 7/16 x 3 9/16
Boxes - Mailers

7 5/8 x 5 7/16 x 3 9/16 in White Corrugated DVD Mailers Crush Resistant 50-Pack

PN: MLRDVD6

7 5/8 x 5 7/16 x 3 9/16 in ECT-32-B Corrugated 50 PER BUNDLE
$53.93 / BUNDLE
IN STOCK Ship DVDs with confidence using these crush-resistant white corrugated mailers. One-piece construction folds and tucks in seconds–no tape or glue required. Perfect for e-commerce brands protecting 1-4 DVDs per shipment in a professional, branded package.
Boxes - Mailers

7 5/8 x 5 7/16 x 11/16 in White Corrugated DVD Mailers Self-Seal 50-Pack

PN: MLRDVD

7 5/8 x 5 7/16 x 11/16 in ECT-32-B Corrugated 50 PER BUNDLE
$34.65 / BUNDLE
IN STOCK 11 1/8 x 8 3/4 x 2
Boxes - Mailers

11 1/8 x 8 3/4 x 2 in White Corrugated DVD Literature Mailer Kit Self-Seal 50-Pack

PN: DLM1182

11 1/8 x 8 3/4 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$278.74 / BUNDLE
IN STOCK Premium ECT-32-B corrugated DVD literature mailer inserts deliver professional protection for media shipments. Precision die-cut 10 5/16 x 12 11/16
Boxes - Mailers

10 5/16 x 12 11/16 in ECT-32-B Corrugated DVD Literature Insert 50-Pack

PN: MDMI1

10 5/16 x 12 11/16 in ECT-32-B Corrugated 50 PER BUNDLE
$34.18 / BUNDLE
IN STOCK Professional 24x14x4 white deluxe literature mailers designed for e-commerce brands shipping documents and promotional materials. Built from strong ECT-32-B corrugated with protective side flaps and front locking tabs that assemble in seconds–no tape, glue, or staples required. Sold as a bundle of 25 crush-resistant mailer boxes.
Boxes - Mailers

24x14x4 White Corrugated Literature Mailers 25-Pack

PN: MFL24144

24 x 14 x 4 in ECT-32-B Corrugated 25 PER BUNDLE
$94.18 / BUNDLE
IN STOCK Professional deluxe white literature mailers (22
Boxes - Mailers

22x18x2.75 White Corrugated Literature Mailers 25-Pack

PN: MFL22182

22 x 18 x 2 3/4 in ECT-32-B Corrugated 25 PER BUNDLE
$97.98 / BUNDLE
IN STOCK Professional 20x20x4
Boxes - Mailers

20x20x4 White Corrugated Literature Mailers 25-Pack

PN: MFL20204

20 x 20 x 4 in ECT-32-B Corrugated 25 PER BUNDLE
$147.73 / BUNDLE
IN STOCK Professional-grade white corrugated mailers designed for keyboards, documents, and delicate electronics. These die-cut literature boxes feature self-sealing construction that requires no tape or glue–assemble in seconds. ECT-32-B corrugated material provides puncture-resistant protection. Bundle of 50 ships flat for efficient storage.
Boxes - Mailers

19 1/8 x 9 1/8 x 2 3/16 in White Corrugated Literature Mailers 50/Bundle

PN: MFL1992

19 1/8 x 9 1/8 x 2 3/16 in ECT-32-B Corrugated 50 PER BUNDLE
$80.51 / BUNDLE
IN STOCK Professional 19x12x3 deluxe white corrugated mailers designed for e-commerce brands shipping documents, catalogs, and marketing materials. ECT-32-B corrugated construction with protective side flaps and front locking tabs provides maximum crush resistance. Tool-free assembly–no tape, glue, or staples required. Sold as bundle of 25.
Boxes - Mailers

19x12x3 White Corrugated Literature Mailers 25/Bundle

PN: MFL19123

19 x 12 x 3 in ECT-32-B Corrugated 25 PER BUNDLE
$87.35 / BUNDLE
IN STOCK Professional 18x12x6
Boxes - Mailers

18x12x6 White Corrugated Literature Mailers 25-Pack

PN: MFL18126

18 x 12 x 6 in ECT-32-B Corrugated 25 PER BUNDLE
$140.14 / BUNDLE
IN STOCK Professional 18x12x4 deluxe literature mailers engineered for e-commerce brands who demand crush-resistant protection. Built from ECT-32-B corrugated with front locking tabs and reinforced side flaps–assembles in seconds without tape, glue, or staples. Bundle of 25 per case.
Boxes - Mailers

18x12x4 White Corrugated Literature Mailers 25/Bundle

PN: MFL18124

18 x 12 x 4 in ECT-32-B Corrugated 25 PER BUNDLE
$72.54 / BUNDLE
IN STOCK Professional-grade 18x12x3 white corrugated literature mailers engineered for e-commerce brands that demand crush-resistant protection without assembly hassle. Front locking tabs and protective side flaps secure documents instantly–no tape, glue, or staples required. Sold as a convenient bundle of 25.
Boxes - Mailers

18x12x3 White Corrugated Literature Mailers 25/Bundle

PN: MFL18123

18 x 12 x 3 in ECT-32-B Corrugated 25 PER BUNDLE
$58.87 / BUNDLE
IN STOCK Professional 18x12x2 white corrugated literature mailers designed for e-commerce brands who demand crush-resistant protection. Features front locking tabs, protective side flaps, and ECT-32-B strength–assembles in seconds without tape or tools. 50-pack bundle.
Boxes - Mailers

18x12x2 White Corrugated Literature Mailers 50-Pack

PN: MFL18122

18 x 12 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$140.52 / BUNDLE
IN STOCK Ship important documents with professional confidence. These 17 1/8x11 1/8x4
Boxes - Mailers

17 1/8 x 11 1/8 x 4 in White Corrugated Literature Mailers Crush Resistant 50-Pack

PN: MFL17114

17 1/8 x 11 1/8 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$135.20 / BUNDLE
IN STOCK Professional-grade white corrugated literature mailers designed for e-commerce brands requiring maximum document protection and polished presentation. Features self-sealing front locking tabs, protective side flaps for enhanced stacking strength, and ECT-32-B corrugated construction. Assembles instantly without tape, glue, or staples–sold as a convenient 50-pack bundle.
Boxes - Mailers

17 1/8 x 11 1/8 x 3 in White Corrugated Literature Mailers Crush Resistant 50-Pack

PN: MFL17113

17 1/8 x 11 1/8 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$115.45 / BUNDLE
IN STOCK Protect high-value documents with these crush-resistant, white deluxe literature mailers (17 1/8
Boxes - Mailers

17 1/8 x 11 1/8 x 2 in White Corrugated Literature Mailers Crush Resistant 50-Pack

PN: MFL17112

17 1/8 x 11 1/8 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$106.56 / BUNDLE
IN STOCK Professional 16
Boxes - Mailers

16x16x2.75 White Self-Seal Corrugated Literature Mailers 50/Bundle

PN: MFL16162

16 x 16 x 2 3/4 in ECT-32-B Corrugated 50 PER BUNDLE
$127.60 / BUNDLE
IN STOCK Ship documents and marketing materials with confidence using our 16x12x6 white deluxe literature mailers. Built from ECT-32-B corrugated with reinforced side flaps and front-locking tabs to ensure maximum crush resistance and professional presentation. Assembles in seconds without tape, glue, or staples–sold as a bundle of 25.
Boxes - Mailers

16x12x6 White Deluxe Literature Mailers 25/Bundle

PN: MFL16126

16 x 12 x 6 in ECT-32-B Corrugated 25 PER BUNDLE
$152.29 / BUNDLE
IN STOCK Professional 16x12x4 deluxe white corrugated literature mailers featuring self-sealing front locking tabs and protective side flaps for maximum document protection. ECT-32-B construction delivers crush resistance and superior stacking strength. Assembles instantly without tape, glue, or staples–sold as a bundle of 50.
Boxes - Mailers

16x12x4 White Self-Seal Corrugated Literature Mailers 50/Bundle

PN: MFL16124

16 x 12 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$185.33 / BUNDLE
IN STOCK Ship documents with confidence using these 16x10x2.75
Boxes - Mailers

16x10x2.75 ECT-32-B White Deluxe Literature Mailers

PN: MFL16102

16 x 10 x 2 3/4 in ECT-32-B Corrugated 50 PER BUNDLE
$94.94 / BUNDLE

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