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 10x5x4 ECT-32 White Corrugated Mailers, Bundle of 50
Boxes - Mailers

10x5x4 ECT-32 White Corrugated Mailers 50-Pack

PN: M1054

10 x 5 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$71.40 / BUNDLE
IN STOCK 10x5x3" ECT-32-B White Corrugated Mailers, 50-Pack
Boxes - Mailers

10x5x3 ECT-32 White Corrugated Mailers 50-Pack

PN: M1053

10 x 5 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$63.80 / BUNDLE
IN STOCK 10x5x2 ECT-32-B White Corrugated Mailers, 50/Bundle
Boxes - Mailers

10x5x2 ECT-32 White Corrugated Mailers 50-Pack

PN: M1052

10 x 5 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$62.28 / BUNDLE
IN STOCK Professional-grade ECT-32-B white corrugated mailers engineered for small item shipping with zero assembly required. These crush-resistant, fold-and-tuck mailers deliver double-wall protection on front and sides–no tape, glue, or staples needed. Bundle of 50 units optimizes freight efficiency and reduces per-unit costs for high-volume shippers.
Boxes - Mailers

10 x 4 7/8 x 3 3/4 in ECT-32-B White Crush Resistant Corrugated Mailers 50-Pack

PN: MLR6

10 x 4 7/8 x 3 3/4 in ECT-32-B Corrugated 50 PER BUNDLE
$47.09 / BUNDLE
IN STOCK 10x4x4 White Corrugated Mailers ECT-32 - 50 Pack
Boxes - Mailers

10x4x4 ECT-32 White Corrugated Mailers 50-Pack

PN: M1044

10 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$40.01 / BUNDLE
IN STOCK 10x4x3 ECT-32-B White Corrugated Mailers, Bundle of 50
Boxes - Mailers

10x4x3 ECT-32 White Corrugated Mailers 50-Pack

PN: M1043

10 x 4 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$33.63 / BUNDLE
IN STOCK 10x4x2 ECT-32 White Corrugated Mailers, 50-Count Bundle
Boxes - Mailers

10x4x2 ECT-32 White Corrugated Mailers 50-Pack

PN: M1042

10 x 4 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$28.51 / BUNDLE
IN STOCK 10x3x3 ECT-32-B White Corrugated Mailers, 50/Bundle
Boxes - Mailers

10x3x3 ECT-32 White Corrugated Mailers 50-Pack

PN: M1033

10 x 3 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$32.55 / BUNDLE
IN STOCK 10x3x2 ECT-32-B White Corrugated Mailers, 50-Pack
Boxes - Mailers

10x3x2 ECT-32 White Corrugated Mailers 50-Pack

PN: M1032

10 x 3 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$23.55 / BUNDLE
IN STOCK 10x3x1 ECT-32-B White Corrugated Mailers, 50/Bundle
Boxes - Mailers

10x3x1 ECT-32 White Corrugated Mailers 50-Pack

PN: M1031

10 x 3 x 1 in ECT-32-B Corrugated 50 PER BUNDLE
$34.94 / BUNDLE
IN STOCK 10x2x2 ECT-32-B White Corrugated Mailers, 50-Pack
Boxes - Mailers

10x2x2 ECT-32 White Corrugated Mailers 50-Pack

PN: M1022

10 x 2 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$22.03 / BUNDLE
IN STOCK Ship with confidence using these ECT-32-B crush-resistant corrugated mailers. The 9x8x5" one-piece design folds in seconds with double-wall protection on front and sides–no tape, glue, or staples required. Perfect for small, lightweight items; sold in convenient 50-pack bundles.
Boxes - Mailers

9x8x5 ECT-32-B White Corrugated Mailers 50-Pack

PN: M985

9 x 8 x 5 in ECT-32-B Corrugated 50 PER BUNDLE
$107.10 / BUNDLE
IN STOCK Heavy-duty ECT-32-B white corrugated mailers designed for small parcel shipping. These one-piece folding mailers feature crush-resistant double walls, require no tape or glue, and ship 50 per bundle to maximize freight efficiency and reduce per-unit costs.
Boxes - Mailers

9x7x4 ECT-32-B White Corrugated Mailers 50-Pack

PN: M974

9 x 7 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$76.71 / BUNDLE
IN STOCK Heavy-duty 9x6x6 white corrugated mailers manufactured from ECT-32-B material deliver double-wall crush resistance with a simple one-piece fold design–no tape, glue, or staples required. This 50-pack bundle ships lightweight to reduce postage costs while protecting small items and fragile goods during transit.
Boxes - Mailers

9x6x6 ECT-32 White Corrugated Mailers 50/Bundle

PN: M966

9 x 6 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$89.63 / BUNDLE
IN STOCK Ship small items with confidence using these ECT-32-B white corrugated mailers in 9x6x5 dimensions. One-piece fold-and-tuck construction delivers double-wall crush resistance on front and sides–no tape, glue, or staples required. 50-pack bundle reduces labor and cuts postage costs on lightweight shipments.
Boxes - Mailers

9x6x5 ECT-32-B White Corrugated Mailers 50-Pack

PN: M965

9 x 6 x 5 in ECT-32-B Corrugated 50 PER BUNDLE
$79.75 / BUNDLE
IN STOCK Ship small items with confidence using these ECT-32-B white corrugated mailers. One-piece fold-and-tuck design requires no tape, glue, or staples–assembly takes seconds. Double-wall crush-resistant construction protects fragile contents while keeping postage costs down.
Boxes - Mailers

9x6x4 ECT-32-B White Corrugated Mailers 50/Bundle

PN: MLR964

9 x 6 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$75.20 / BUNDLE

Product Help Request

Send the SKU, quantity, delivery ZIP, and any required specs so we can route the request.

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

Save the SKU or product link for repeat purchasing and support questions.

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 ->