Boxes & Mailers

SELECTION EXPERT ADVICE

Wall Strength & Load Capacity
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Match single-, double-, or triple-wall corrugated construction to your product weight to prevent in-transit damage and minimize costly returns.
Dimensional Weight Cost Control
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Right-sized boxes cut carrier DIM weight charges, selecting the optimal LxWxH for each SKU directly lowers your per-shipment freight cost.
Mailer Box vs. RSC: Choose Correctly
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Self-locking mailer boxes suit branded DTC shipments; traditional RSC corrugated boxes are ideal for palletized B2B and high-volume fulfillment.

Need help choosing boxes?

Pick the right corrugated box without overpaying for size or strength

Use these buying guides to size your box, compare board strength, and avoid dimensional weight surcharges.

Corrugated Boxes Guide → How to choose size, strength, and wall type Box Size Calculator → Find the smallest safe box for your product 32 ECT vs 200 lb Test → Which board strength rating fits your shipment
Overview

3,094 corrugated boxes, literature mailers and mailing tubes from 2 to 36 inches, mostly ECT-32 kraft and white, sold in bundles of 10 to 50. Each listing shows inside dimensions, board grade and bundle count so you can match a carton to the part you ship. 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

IN STOCK Durable 3" x 3" x 2" white fibreboard gift boxes in cases of 100 units. One-piece construction sets up in seconds with no assembly hassle. Ships and stores flat to maximize warehouse efficiency–ideal for retail goods, ornaments, and promotional packaging at unbeatable per-unit cost.
Chipboard Cartons

3x3x2 White Chipboard Shipping Gift Boxes 100/Case

PN: GB332

3 x 3 x 2 in Fibreboard 100 PER CASE
$28.34 / CASE
IN STOCK Ship more, spend less. These 2x2x2 white fibreboard gift boxes feature one-piece construction that sets up in seconds, reducing labor costs and packing time. White exterior with gray interior arrives flat and stores efficiently–200 boxes per case.
Chipboard Cartons

2x2x2 White Chipboard Gift Boxes 200/Case

PN: GB222

2 x 2 x 2 in Fibreboard 200 PER CASE
$55.73 / CASE
IN STOCK Professional-grade white corrugated easy-fold mailers designed for e-commerce brands shipping flat materials like framed pictures and artwork. Multi-depth scoring allows flexible folding at your desired depth, while ECT-32-B material provides crush resistance and a polished appearance. Bundle of 50 mailers ready to ship.
Boxes - Mailers

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

PN: M11102BF

11 3/4 x 10.5 x 2.25 in ECT-32-B Corrugated 50 PER BUNDLE
$101.11 / BUNDLE
IN STOCK Ship smarter with ECT-32 white corrugated trays designed for lightweight parts distribution and warehouse organization. These 24" 15" 1" trays collapse flat for 40% less freight spend and stack efficiently in your fulfillment center. 50-tray bundle ready to deploy.
Boxes - Corrugated

24x15x1.75 ECT-32 White Corrugated Trays 50-Pack

PN: 24152CTW

24 x 15 x 1 3/4 in ECT-32 Corrugated 50 PER BUNDLE
$93.64 / BUNDLE
IN STOCK Ship and store flat with our 24x12x1.75" white corrugated trays–ECT-32 rated for reliable stacking performance in busy warehouses. Easy-fold sides lock items in place while maximizing freight efficiency. Sold in bundles of 50 per case.
Boxes - Corrugated

24x12x1.75 ECT-32 White Corrugated Trays 50-Pack

PN: 24122CTW

24 x 12 x 1 3/4 in ECT-32 Corrugated 50 PER BUNDLE
$64.92 / BUNDLE
IN STOCK ECT-32 white corrugated trays sized 15" 12" 1" for efficient parts storage and shipping. Foldable sides maximize stability while flat-ship design cuts storage overhead. Sold as a bundle of 50 trays–the smart choice for warehouse managers seeking volume savings.
Boxes - Corrugated

15x12x1.75 ECT-32 White Corrugated Trays 50-Pack

PN: 15122CTW

15 x 12 x 1 3/4 in ECT-32 Corrugated 50 PER BUNDLE
$50.93 / BUNDLE
IN STOCK One-piece white corrugated mailers manufactured from ECT-32-B material with crush-resistant double-wall protection on front and sides. Dimensions 36.25x4.875x4 inches fold together in seconds–no tape, glue, or staples required. Sold as a bundle of 50 units.
Boxes - Mailers

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

PN: M3644

36 1/4 x 4.875 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$110.89 / BUNDLE
IN STOCK Ship lightweight items with confidence using these 36x4x4 ECT-32-B white corrugated mailers. Double-wall crush-resistant construction folds in seconds with no tape, glue, or staples required. Bundle of 50 mailers reduces per-unit costs and shipping weight for maximum freight efficiency.
Boxes - Mailers

36x4x4 ECT-32 White Corrugated Mailers 50/Bundle

PN: MLR3644

36 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$150.39 / BUNDLE
IN STOCK Ship small, lightweight items with confidence using these 30x4x4 white corrugated mailers manufactured from ECT-32-B material. One-piece fold-and-tuck design provides double-wall crush resistance on front and sides–no tape, glue, or staples required. Sold as a bundle of 50 for maximum volume savings.
Boxes - Mailers

30x4x4 ECT-32 White Corrugated Mailers 50-Pack

PN: M3044

30 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$140.52 / BUNDLE
IN STOCK Industrial-grade ECT-32-B corrugated mailers engineered for lightweight shipping without compromise. One-piece fold-and-tuck design provides double-wall protection on front and sides–no tape, glue, or staples required. 50-unit bundle optimizes freight efficiency and warehouse operations.
Boxes - Mailers

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

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 ECT-32-B white corrugated mailers engineered for maximum crush resistance and rapid deployment. One-piece fold-and-tuck design requires zero tape, glue, or staples–pack 50 units per bundle at optimal freight efficiency. Ideal for fulfillment operations shipping small to mid-sized items with double-wall protection on front and sides.
Boxes - Mailers

26x6x2 ECT-32-B White Corrugated Mailers 50/Bundle

PN: M2662

26 x 6 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$107.10 / BUNDLE
IN STOCK Heavy-duty ECT-32 white corrugated mailers engineered for lightweight shipping efficiency. One-piece fold-and-tuck design delivers double-wall protection on front and sides without tape, glue, or staples. Perfect for fulfillment operations shipping small fragile items–50 per bundle.
Boxes - Mailers

24x4x4 ECT-32 White Corrugated Mailers 50/Bundle

PN: M2444

24 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$97.98 / BUNDLE
IN STOCK Ship small, lightweight items with confidence using these ECT-32-B white corrugated mailers. The one-piece fold-and-tuck design assembles in seconds without tape, glue, or staples, while double-wall construction provides crush-resistant protection. Bundle of 50 units optimizes your fulfillment efficiency and reduces per-unit shipping costs.
Boxes - Mailers

22x6x2 ECT-32 White Corrugated Mailers 50-Pack

PN: M2262

22 x 6 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$99.50 / BUNDLE
IN STOCK Heavy-duty ECT-32-B white corrugated mailers in 21" 6" 2" dimensions ship lightweight items with maximum protection and minimal postage spend. One-piece fold-and-tuck design requires no tape, glue, or staples–ready to pack in seconds. Sold in bundles of 50.
Boxes - Mailers

21x6x2 ECT-32 White Corrugated Mailers 50-Pack

PN: M2162

21 x 6 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$96.46 / BUNDLE
IN STOCK Ship lightweight items with confidence using these ECT-32-B white corrugated mailers. One-piece fold-and-tuck construction delivers double-wall crush resistance on front and sides–no tape, glue, or staples required. Bundle of 50 units reduces per-unit freight costs and accelerates fulfillment.
Boxes - Mailers

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

PN: M2044

20 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$96.46 / BUNDLE
IN STOCK Heavy-duty 18x12x4 white corrugated mailers engineered for reliable protection on every shipment. ECT-32-B construction delivers crush resistance without the weight penalty–reducing freight costs while safeguarding contents. One-piece fold-and-tuck design assembles in seconds with zero tape, glue, or staples required. Sold as a bundle of 50.
Boxes - Mailers

18x12x4 ECT-32 White Corrugated Mailers 50-Pack

PN: M18124

18 x 12 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$212.67 / BUNDLE

Product Help Request

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Buying path

Buy Boxes & Mailers 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

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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 ->