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 12x6x2 Kraft Corrugated Shipping Boxes, 1,125 Pack Pallet, 32 ECT
Boxes - Corrugated

12x6x2 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1262

12 x 6 x 2 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$25.05 / BUNDLE
IN STOCK 10x8x10 ECT-32 Kraft Corrugated Boxes - Bulk 25-Pack Shipping
Boxes - Corrugated

10x8x10 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 10810

10 x 8 x 10 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$25.28 / BUNDLE
IN STOCK 10x8x6 Double Wall Boxes ECT-48 Kraft - Bundle of 15
Boxes - Corrugated

10x8x6 ECT-48 Kraft Heavy Duty Double Wall Corrugated Shipping Boxes 15-Pack

PN: HD1086DW

10 x 8 x 6 in D.W./ECT-48 Corrugated 15 PER BUNDLE
$31.90 / BUNDLE
IN STOCK 10x8x6 Kraft Heavy-Duty Corrugated Shipping Boxes, 650 Pack Pallet, 44 ECT
Boxes - Corrugated

10x8x6 ECT-44 Kraft Heavy-Duty Corrugated Shipping Boxes 25-Pack

PN: HD1086

10 x 8 x 6 in ECT-44 Single Wall Corrugated 25 PER BUNDLE
$43.22 / BUNDLE
IN STOCK 10x8x6 Multi-Depth Corrugated Boxes, ECT-32 Kraft - 25 Pack
Boxes - Corrugated

10x8x6 ECT-32 Kraft Multi-Depth Corrugated Shipping Boxes 25-Pack

PN: MD1086

10 x 8 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$28.48 / BUNDLE
IN STOCK ECT-32 single-wall kraft corrugated boxes in 10" 8" 6" dimensions–built for warehouse managers and fulfillment directors who need dependable stacking strength and freight efficiency. Bundle of 25 delivers cost-effective protection for mid-weight products with proven durability. 100% recyclable kraft material supports sustainable packaging goals.
Boxes - Corrugated

10x8x6 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1086

10 x 8 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$19.22 / BUNDLE
IN STOCK 10x8x2 ECT-32 Kraft Corrugated Boxes - Shallow Depth Shipping, Bundle of 25
Boxes - Corrugated

10x8x2 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1082

10 x 8 x 2 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$29.02 / BUNDLE
IN STOCK Engineered for maximum protection and stacking performance, these 9x9x9 heavy-duty corrugated boxes deliver 40% greater strength than standard single wall cartons. Built from ECT-44 kraft material, they're ideal for demanding warehouse and fulfillment operations. Sold flat in convenient bundles of 25 to maximize freight efficiency and storage.
Boxes - Corrugated

9x9x9 ECT-44 Kraft Heavy-Duty Corrugated Shipping Boxes 25-Pack

PN: HD999

9 x 9 x 9 in ECT-44 Single Wall Corrugated 25 PER BUNDLE
$53.30 / BUNDLE
IN STOCK ECT-32 single-wall white corrugated boxes deliver industry-standard strength in a compact 9x9x9 cube format. Sold in bundles of 25, these unprinted cartons feature a crisp white finish that makes applied labels and shipping instructions pop–ideal for e-commerce, retail fulfillment, and warehouse storage. Same proven construction strength as kraft cartons at a competitive cost.
Boxes - Corrugated

9x9x9 ECT-32 White Corrugated Shipping Boxes 25-Pack

PN: 999W

9 x 9 x 9 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$41.87 / BUNDLE
IN STOCK Adjustable 9x9x9 kraft corrugated boxes with pre-scored multi-depth sides eliminate the need for multiple carton sizes. Each bundle of 25 ECT-32 single-wall boxes folds to your exact height requirements–no sizer equipment needed. Cut inventory costs and parcel service fees with right-sized shipping.
Boxes - Corrugated

9x9x9 ECT-32 Kraft Multi-Depth Corrugated Shipping Boxes 25-Pack

PN: MD999

9 x 9 x 9 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$23.13 / BUNDLE
IN STOCK Ship round and cylindrical products confidently with these 9x9x9 ECT-32 kraft corrugated boxes. Perfect cube geometry maximizes pallet efficiency and reduces dimensional weight charges. Order flat in convenient 25-box bundles and save on storage and freight costs.
Boxes - Corrugated

9x9x9 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 999

9 x 9 x 9 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$21.74 / BUNDLE
IN STOCK Industrial-grade double wall corrugated boxes engineered for high-volume shipping and storage. ECT-48 kraft construction delivers superior stacking performance and damage protection. Ships flat–maximize warehouse density and minimize freight costs with our bulk bundle of 25 cartons.
Boxes - Corrugated

9x9x6.5 ECT-48 Kraft Double Wall Corrugated Shipping Boxes 25-Pack

PN: KEG14

9 x 9 x 6 1/2 in ECT-48 Double Wall Corrugated 25 PER BUNDLE
$39.27 / BUNDLE
IN STOCK Industrial-grade 9x9x6" corrugated boxes with ECT-32 single-wall construction deliver reliable stacking performance and crush resistance for high-volume shipping operations. Sold in bundles of 25 kraft cartons, these brown cardboard shipping boxes optimize freight efficiency while keeping per-unit costs low. 100% recyclable kraft material supports sustainable packaging practices.
Boxes - Corrugated

9x9x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 996

9 x 9 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$20.01 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in a compact 9x9x4" format–ideal for shallow products like apparel, books, and artwork. Ships flat in bundles of 25 to maximize warehouse efficiency and reduce freight costs. Single-wall construction balances protection with economy.
Boxes - Corrugated

9x9x4 ECT-32 Kraft Corrugated Boxes 25-Pack

PN: 994

9 x 9 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$17.88 / BUNDLE
IN STOCK Industrial-grade 8" x 8" x 10" corrugated boxes with ECT-32 kraft construction deliver dependable crushing strength for mid-weight freight. Each 25-pack bundle maximizes your storage efficiency and cuts per-unit costs. Built for warehouse managers and fulfillment centers demanding reliable, recyclable shipping solutions.
Boxes - Corrugated

8x8x10 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 8810

8 x 8 x 10 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$22.59 / BUNDLE
IN STOCK Ship tall items efficiently with our 6x6x12 ECT-32 kraft corrugated boxes. End-loading design eliminates insertion hassles while strong single-wall construction handles demanding warehouse conditions. Bundle of 25 ships flat to maximize freight efficiency and reduce storage costs.
Boxes - Corrugated

6x6x12 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 6612

6 x 6 x 12 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$19.72 / 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 ->