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 Lightweight yet durable 8x5x1 white corrugated mailers built from ECT-32-B material for maximum crush resistance on small packages. These one-piece folding mailers require no tape, glue, or staples–assembly takes seconds. Bundle of 50 units delivers reliable protection and postage savings for high-volume fulfillment operations.
Boxes - Mailers

8x5x1 ECT-32-B White Corrugated Mailers 50-Pack

PN: M851

8 x 5 x 1 in ECT-32-B Corrugated 50 PER BUNDLE
$50.13 / BUNDLE
IN STOCK Ship small items safely with these one-piece white corrugated mailers featuring ECT-32-B crush-resistant construction. The 8x4x4 fold-and-tuck design requires no tape, glue, or staples–assemble in seconds and reduce postage costs. Sold in bundles of 50.
Boxes - Mailers

8x4x4 ECT-32-B White Corrugated Mailers 50/Bundle

PN: M844

8 x 4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$34.64 / BUNDLE
IN STOCK Save on labor and shipping costs with 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 lightweight fragile items while keeping dimensional weight low.
Boxes - Mailers

8x4x3 ECT-32-B White Corrugated Mailers 50/Bundle

PN: M843

8 x 4 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$30.85 / BUNDLE
IN STOCK ECT-32-B white corrugated mailers deliver double-wall crush protection in a lightweight, one-piece folding design that requires no tape, glue, or staples. Ideal for e-commerce fulfillment centers shipping small to medium lightweight items, these 8x4x2 mailers reduce labor time and postage costs. Order bulk quantities (50/bundle) and optimize your shipping operations with proven, stackable protection.
Boxes - Mailers

8x4x2 ECT-32 White Corrugated Mailers 50-Pack

PN: M842

8 x 4 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$26.64 / BUNDLE
IN STOCK ECT-32-B white corrugated mailers deliver professional protection for small shipments without the cost. One-piece fold-and-tuck design eliminates assembly time and tape waste. 50-count bundle of 8x3x3 crush-resistant boxes perfect for e-commerce, fulfillment centers, and high-volume warehouses.
Boxes - Mailers

8x3x3 ECT-32 White Corrugated Mailers 50-Pack

PN: M833

8 x 3 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$27.02 / BUNDLE
IN STOCK Premium ECT-32-B white corrugated mailers in 8x3x2" dimensions–designed for warehouse and fulfillment operations shipping small to mid-weight items. One-piece fold-and-tuck construction with double-wall crush resistance requires zero tape, glue, or staples. 50-pack bundle maximizes freight efficiency and reduces per-unit packaging costs.
Boxes - Mailers

8x3x2 ECT-32-B White Corrugated Mailers 50-Pack

PN: M832

8 x 3 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$24.05 / BUNDLE
IN STOCK Save time and shipping costs with these ECT-32-B white corrugated mailers in 8x2x2 dimensions. One-piece fold-and-tuck design provides double-wall crush resistance on front and sides–no tape, glue, or staples required. Ideal for small, lightweight items; sold as a 50-pack bundle.
Boxes - Mailers

8x2x2 ECT-32-B White Corrugated Mailers 50-Pack

PN: M822

8 x 2 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$30.38 / BUNDLE
IN STOCK Ship small items with confidence using these ECT-32-B white corrugated mailers featuring crush-resistant double-wall construction on front and sides. One-piece fold-and-tuck design requires no tape, glue, or staples–assembly takes seconds and cuts labor costs. Bundle of 50 units optimizes freight efficiency and reduces per-unit packaging spend for high-volume shippers.
Boxes - Mailers

7.5x3.5x3.25 ECT-32 White Corrugated Mailers 50-Pack

PN: MIBM5C

7 1/2 x 3.5 x 3 1/4 in ECT-32-B Corrugated 50 PER BUNDLE
$29.62 / BUNDLE
IN STOCK One-piece white corrugated mailers measuring 7.5" x 3.25" x 1.75" with ECT-32-B crush-resistant construction. Fold and tuck in seconds–no tape, glue, or staples required. Lightweight design cuts postage; double-wall protection on front and sides. Sold as 50-piece bundle.
Boxes - Mailers

7.5x3.25x1.75 ECT-32 White Corrugated Mailers 50-Pack

PN: MIBM250

7 1/2 x 3.25 x 1 3/4 in ECT-32-B Corrugated 50 PER BUNDLE
$25.07 / BUNDLE
IN STOCK Ship small, lightweight items with confidence using these ECT-32-B white corrugated mailers. One-piece fold-and-tuck design delivers double-wall crush resistance on front and sides–no tape, glue, or staples needed. Perfect for e-commerce fulfillment centers prioritizing speed and material efficiency. 50-pack bundle.
Boxes - Mailers

7 1/8 x 5 x 3 in ECT-32-B White Corrugated Mailers 50-Pack

PN: MLR3

7 1/8 x 5 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$33.60 / 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–assemble in seconds and reduce labor costs. Double-wall crush protection on front and sides delivers reliable performance at every shipment.
Boxes - Mailers

7x7x7 ECT-32 White Corrugated Mailers 50/Bundle

PN: M777

7 x 7 x 7 in ECT-32-B Corrugated 50 PER BUNDLE
$114.69 / BUNDLE
IN STOCK ECT-32-B white corrugated mailers in 7x7x6 dimensions deliver crush-resistant protection without tape, glue, or staples–just fold and ship. One-piece design with double-wall coverage on front and sides reduces damage claims while cutting postage costs. Sold as a convenient 50-pack bundle for high-volume shippers.
Boxes - Mailers

7x7x6 ECT-32 White Corrugated Mailers 50-Pack

PN: M776

7 x 7 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$110.14 / BUNDLE
IN STOCK Heavy-duty 7x7x5 white corrugated mailers with ECT-32-B strength and one-piece fold-and-tuck design eliminate setup time and assembly costs. Each bundle of 50 delivers double-wall crush protection on front and sides–no tape, glue, or staples required. Lightweight construction reduces postage expenses while maintaining superior stacking performance for high-volume fulfillment operations.
Boxes - Mailers

7x7x5 ECT-32-B White Corrugated Mailers 50/Bundle

PN: M775

7 x 7 x 5 in ECT-32-B Corrugated 50 PER BUNDLE
$104.82 / BUNDLE
IN STOCK Ship small items affordably with these ECT-32-B white corrugated mailers. The one-piece fold-and-tuck design requires no tape, glue, or staples, delivering double-wall crush protection on front and sides. Each bundle contains 50 mailers in 7x7x4 dimensions–ideal for e-commerce and warehouse fulfillment operations managing high shipping volumes.
Boxes - Mailers

7x7x4 ECT-32-B White Corrugated Mailers 50-Pack

PN: M774

7 x 7 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$96.46 / BUNDLE
IN STOCK ECT-32-B white corrugated mailers deliver crush resistance with zero assembly time–fold and tuck in seconds, no tape or glue required. 7x7x3" dimensions fit small parcels perfectly while double-wall construction protects fragile items. Pack of 50 reduces per-unit cost and freight spend.
Boxes - Mailers

7x7x3 ECT-32-B White Corrugated Mailers 50-Pack

PN: M773

7 x 7 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$85.07 / BUNDLE
IN STOCK ECT-32-B white corrugated mailers deliver crush-resistant protection in a convenient fold-and-tuck design–no tape, glue, or staples required. These 7x6x3" one-piece mailers feature double-wall construction on front and sides, ideal for small to lightweight items. Bundle of 50 mailers reduces assembly time and shipping costs.
Boxes - Mailers

7x6x3 ECT-32-B White Corrugated Mailers 50-Pack

PN: M763

7 x 6 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$69.88 / 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

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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 ->