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 UN 4G/Y7.4/S certified haz mat boxes designed for safe 1-gallon liquid shipment. Single-wall ECT-44 kraft corrugated with pre-printed hazard warnings and directional arrows. Bundle of 20 cartons ships flat for maximum warehouse efficiency.
Boxes - Corrugated

6.875x6.875x7.875 ECT-44 Haz Mat Shipping Box 20-Pack

PN: HAZCO1G

6 7/8 x 6 7/8 x 7 7/8 in ECT-44 Single Wall Corrugated 20 PER BUNDLE
$120.62 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 5x5x10" dimensions designed for tall, fragile items like trophies, shelving, and fishing rods. End-load design enables quick insertion and sealing with excellent stacking strength. Ships flat in bundles of 25 for maximum warehouse efficiency.
Boxes - Corrugated

5x5x10 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 5510

5 x 5 x 10 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$17.96 / BUNDLE
IN STOCK 13x3x3 Kraft Corrugated Shipping Boxes, 1,225 Pack Pallet, 32 ECT
Boxes - Corrugated

13x3x3 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1333

13 x 3 x 3 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$22.84 / BUNDLE
IN STOCK ECT-32 single-wall kraft corrugated boxes built for long, narrow products–wine bottles, umbrellas, carpet rolls. The extended 12" length with 4" width and height design maximizes packing efficiency while maintaining structural durability. Sold flat in convenient 25-box bundles.
Boxes - Corrugated

12x4x4 ECT-32 Kraft Corrugated Boxes 25-Pack

PN: 1244

12 x 4 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$15.37 / BUNDLE
IN STOCK 10x6x3 Kraft Corrugated Shipping Boxes, 1,950 Pack Pallet, 32 ECT
Boxes - Corrugated

10x6x3 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1063

10 x 6 x 3 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$14.30 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 9" 7" 6" deliver dependable standard-strength protection for mid-weight shipments. Sold in bundles of 25 units to optimize freight efficiency and reduce per-unit costs. Fully recyclable corrugated material supports sustainable warehouse operations.
Boxes - Corrugated

9x7x6 ECT-32 Kraft Corrugated Boxes 25-Pack

PN: 976

9 x 7 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$19.03 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes sized 9" 7" 5" deliver reliable standard-strength performance for small to mid-size items. Sold as a convenient bundle of 25 units, these recyclable cardboard shipping cartons maximize warehouse efficiency while reducing per-unit costs. Ideal for e-commerce, fulfillment centers, and direct shipping operations.
Boxes - Corrugated

9x7x5 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 975

9 x 7 x 5 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$16.92 / BUNDLE
IN STOCK Professional-grade 9x7x4" corrugated shipping boxes manufactured from ECT-32 kraft material deliver reliable protection for small-to-medium products. Each bundle of 25 boxes offers consistent stacking performance and cost-effective fulfillment for warehouse operations. Fully recyclable kraft construction supports sustainable packaging practices.
Boxes - Corrugated

9x7x4 ECT-32 Kraft Corrugated Boxes 25-Pack

PN: 974

9 x 7 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$16.21 / BUNDLE
IN STOCK ECT-32 single-wall kraft corrugated boxes in 8x8x7 dimensions–the ideal standard-strength shipping solution for mid-weight products. Bundle of 25 cartons delivers reliable stacking performance and cost-effective freight efficiency. 100% recyclable cardboard construction.
Boxes - Corrugated

8x8x7 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 887

8 x 8 x 7 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$21.22 / BUNDLE
IN STOCK ECT-32 single-wall corrugated boxes sized 8" x 8" x 5"–the proven standard for mid-weight shipping and storage. Sold as bundles of 25 kraft cartons. Built to stack efficiently and reduce freight costs per unit.
Boxes - Corrugated

8x8x5 ECT-32 Kraft Corrugated Boxes 25-Pack

PN: 885

8 x 8 x 5 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$17.35 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes in 8" x 8" x 4" dimensions–the perfect compact carton for shallow products. Ships flat in bundles of 25 to maximize your storage space and reduce freight costs. Built for reliable protection of apparel, books, picture frames, and lightweight items.
Boxes - Corrugated

8x8x4 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 884

8 x 8 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$16.59 / BUNDLE
IN STOCK ECT-32 single wall corrugated cartons engineered for shallow products–apparel, books, artwork, and frames. 8" x 8" x 3" dimensions optimize dimensional weight charges and warehouse footprint. Sold in bundles of 25 and ship flat to cut storage costs.
Boxes - Corrugated

8x8x3 ECT-32 Kraft Corrugated Boxes 25-Pack

PN: 883

8 x 8 x 3 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$17.19 / BUNDLE
IN STOCK 10x6x5 ECT-32 Kraft Corrugated Boxes - 25 Pack Bundle
Boxes - Corrugated

10x6x5 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1065

10 x 6 x 5 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$16.54 / BUNDLE
IN STOCK 10x6x4 Kraft Corrugated Shipping Boxes, 1,975 Pack Pallet, 32 ECT
Boxes - Corrugated

10x6x4 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1064

10 x 6 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$13.99 / BUNDLE
IN STOCK 9x7x7 Kraft Corrugated Shipping Boxes, 1,375 Pack Pallet, 32 ECT
Boxes - Corrugated

9x7x7 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 977

9 x 7 x 7 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$20.41 / BUNDLE
IN STOCK Compact 9x7x3" corrugated shipping boxes made from durable ECT-32 kraft material. Perfect for apparel, books, picture frames, and lightweight products. Shipped flat in 25-box bundles to maximize your warehouse efficiency and reduce freight costs.
Boxes - Corrugated

9x7x3 ECT-32 Kraft Corrugated Boxes 25-Pack

PN: 973

9 x 7 x 3 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$20.90 / 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

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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 ->