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 Reliable ECT-32 kraft corrugated shipping boxes sized 13x13x10 for standard mid-range freight. Each bundle contains 25 boxes engineered for stacking strength and freight efficiency. Recyclable kraft construction reduces environmental impact while maintaining industrial durability.
Boxes - Corrugated

13x13x10 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 131310

13 x 13 x 10 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$42.19 / BUNDLE
IN STOCK Heavy-duty ECT-32 kraft corrugated boxes designed for mid-weight shipping and warehouse storage. 13" x 13" x 8" dimensions deliver optimal cubic capacity with proven stacking performance. Bundle of 25 boxes–cost-effective packaging solution for fulfillment centers and warehouses.
Boxes - Corrugated

13x13x8 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 13138

13 x 13 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$39.62 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 13" × 13" × 6" for shallow product shipping. Ideal for apparel, books, frames, and artwork with optimal stacking strength. Bundle of 25 ships flat to maximize warehouse efficiency and reduce freight expenses.
Boxes - Corrugated

13x13x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 13136

13 x 13 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$34.68 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes with 5" shallow depth–ideal for lightweight products, apparel, and media. Ships flat in bundles of 25 to maximize your warehouse efficiency and reduce freight spend. Get reliable stacking performance and protection without excess material.
Boxes - Corrugated

13x13x5 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 13135

13 x 13 x 5 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$34.93 / BUNDLE
IN STOCK Ship lightweight products efficiently with 13x13x2 ECT-32 kraft corrugated boxes–the perfect shallow-depth solution for apparel, books, artwork, and more. Sold in bundles of 25 and ship flat to maximize storage space and reduce freight overhead. Durable single-wall construction at an economical price point.
Boxes - Corrugated

13x13x2 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 13132

13 x 13 x 2 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$52.42 / BUNDLE
IN STOCK Professional-grade 16x10x6 double wall corrugated boxes engineered for demanding warehouse and fulfillment operations. ECT-48 kraft construction delivers superior stacking performance and impact protection–ideal for protecting mid-weight products during transport and storage. Ships flat in bundles of 15 to maximize warehouse efficiency and reduce freight costs.
Boxes - Corrugated

16x10x6 ECT-48 Kraft Double Wall Corrugated Shipping Boxes 15-Pack

PN: HD16106DW

16 x 10 x 6 in D.W./ECT-48 Corrugated 15 PER BUNDLE
$50.59 / BUNDLE
IN STOCK 16x10x6 Kraft Corrugated Shipping Boxes, 1,000 Pack Pallet, 32 ECT
Boxes - Corrugated

16x10x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 16106

16 x 10 x 6 in ECT-32 Corrugated 25 PER BUNDLE
$28.05 / BUNDLE
IN STOCK 14x12x14 Kraft Corrugated Shipping Boxes, 400 Pack Pallet, 32 ECT
Boxes - Corrugated

14x12x14 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 141214

14 x 12 x 14 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$70.76 / BUNDLE
IN STOCK Heavy-duty ECT-48 double wall corrugated boxes designed for demanding warehouse operations. 14" x 12" x 10" kraft cartons deliver maximum stacking strength and crush resistance per bundle of 15. Ships flat to reduce storage footprint and freight costs.
Boxes - Corrugated

14x12x10 ECT-48 Kraft Heavy-Duty Double Wall Corrugated Shipping Boxes 15-Pack

PN: HD141210DW

14 x 12 x 10 in D.W./ECT-48 Corrugated 15 PER BUNDLE
$67.77 / BUNDLE
IN STOCK Industrial-grade ECT-44 single wall kraft corrugated boxes designed for warehouse managers who need maximum stacking performance and protection. These 14x12x10 heavy-duty cartons deliver 40% greater strength than standard shipping containers, reducing damage rates and freight loss. Ships flat in convenient bundles of 25 for efficient storage and deployment.
Boxes - Corrugated

14x12x10 ECT-44 Kraft Heavy-Duty Corrugated Shipping Boxes 25-Pack

PN: HD141210

14 x 12 x 10 in ECT-44 Single Wall Corrugated 25 PER BUNDLE
$53.40 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 14x12x10" dimensions deliver dependable protection for mid-weight shipments and warehouse storage. Each 25-pack bundle reduces per-unit costs and streamlines your procurement. Built tough for stacking stability and freight efficiency.
Boxes - Corrugated

14x12x10 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 141210

14 x 12 x 10 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$38.37 / BUNDLE
IN STOCK Standard-strength ECT-32 kraft corrugated shipping boxes in 14" × 12" × 8" dimensions–perfect for mid-size products and fulfillment operations. Each bundle includes 25 boxes, delivering cost-effective protection with proven stacking performance. Recyclable kraft construction supports sustainable warehouse operations.
Boxes - Corrugated

14x12x8 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 14128

14 x 12 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$35.00 / BUNDLE
IN STOCK Ship shallow products efficiently with these 14x12x3 ECT-32 kraft corrugated boxes. Engineered for apparel, books, artwork, and picture frames, each bundle of 25 ships flat to maximize warehouse space and reduce freight costs. ECT-32 single wall construction delivers reliable protection at competitive pricing.
Boxes - Corrugated

14x12x3 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 14123R

14 x 12 x 3 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$46.76 / BUNDLE
IN STOCK 13x13x13 Kraft Heavy-Duty Corrugated Shipping Boxes, 275 Pack Pallet, 44 ECT
Boxes - Corrugated

13x13x13 ECT-44 Kraft Heavy-Duty Corrugated Shipping Boxes 25-Pack

PN: HD131313

13 x 13 x 13 in ECT-44 Single Wall Corrugated 25 PER BUNDLE
$106.52 / BUNDLE
IN STOCK Reduce carton inventory and shipping expenses with one versatile 13x13x13 corrugated box that folds to multiple heights. Pre-scored sides let you adjust sizes on demand–no carton sizer required. Made from durable ECT-32 kraft corrugated. Sold in bundles of 25.
Boxes - Corrugated

13x13x13 ECT-32 Kraft Multi-Depth Corrugated Shipping Boxes 25-Pack

PN: MD131313

13 x 13 x 13 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$46.58 / BUNDLE
IN STOCK Ship round and irregularly-shaped products with confidence using these ECT-32 kraft corrugated cube boxes. The 13x13x13" form factor maximizes pallet efficiency while the single-wall construction delivers proven durability. Order in bundles of 25 and reduce your per-unit packaging costs.
Boxes - Corrugated

13x13x13 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 131313

13 x 13 x 13 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$41.38 / 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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Confirm

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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 ->