ASTM D5118 certified

ASTM D5118 Certified

ASTM D4727 certified

ASTM D4727 Certified

CSA Class Code A certified

CSA Class Code A Certified

6x6x24 Kraft Corrugated Shipping Boxes

6x6x24 Kraft corrugated shipping boxes are long, narrow RSC-style cartons ideal for shipping elongated items such as rods, tubes, posters, and sporting equipment. Built from durable kraft corrugated fiberboard, they offer reliable protection during transit and are compatible with major carriers including UPS and FedEx.

Long Corrugated Boxes
Custom Cardboard Boxes
Military Boxes
Moving Boxes
File Storage Boxes
Stock Boxes
Shipping Boxes
Printers Boxes - Corrugated Cardboard Boxes
Telescoping Boxes
V3C Boxes ASTM D5118
Multi-Depth Corrugated Boxes
Hazardous Material Boxes

Our Range of Products

Long Corrugated Boxes

Long Corrugated Boxes

  • 63+ long box sizes up to 48" length
  • Affordable pricing starting at $0.91/unit
  • Inside dimensions listed for precise fitting
Custom Cardboard Boxes

Custom Cardboard Boxes

  • ECT-44 to ECT-48 heavy-duty wall options
  • Gaylord bins, bulk totes & octagon containers
  • New & reconditioned boxes for cost savings
Military Boxes

Military Boxes

  • MIL-SPEC V3c & W5c weather-resistant boxes
  • Custom sizes made to exact specifications
  • ASTM D5118 compliant for military use
Moving Boxes

Moving Boxes

  • Single & double wall corrugated construction
  • Stock sizes ready for immediate purchase
  • Suitable for moving & relocation needs
File Storage Boxes

File Storage Boxes

  • 6 closure styles including auto-lock bottom
  • Color-coded options: Kraft, White & 5 colors
  • Drawer-style STOR/DRAWER access design
Stock Boxes

Stock Boxes

  • Custom-sized to eliminate void space waste
  • Full-color custom branding print available
  • Low 100-piece minimum order quantity

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Frequently Asked Questions

What are 6x6x24 kraft corrugated shipping boxes used for?

6x6x24 kraft corrugated shipping boxes are designed for long, narrow items such as rods, tubes, curtain rods, fishing rods, posters, and banners. Their slim profile makes them ideal for e-commerce fulfillment, retail shipping, and industrial packaging where standard square boxes would result in excessive void fill and added dimensional weight charges.

What wall construction is used in 6x6x24 shipping boxes?

Are these boxes compatible with UPS and FedEx shipping requirements?

Can I order 6x6x24 boxes in custom sizes or bulk quantities?

What is the difference between ECT-rated and Mullen burst-rated corrugated boxes?

Do these boxes ship flat for easy storage?

Are kraft corrugated shipping boxes recyclable?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

E-Commerce & Retail

E-Commerce & Retail

Long kraft boxes efficiently ship narrow products, reducing dimensional weight charges and void fill in e-commerce fulfillment.

Sporting Goods & Recreation

Sporting Goods & Recreation

Ideal for shipping fishing rods, golf clubs, curtain rods, and other elongated sporting equipment securely.

Industrial & Manufacturing

Industrial & Manufacturing

Used for packaging pipes, tubes, metal rods, and other elongated industrial components for freight transport.

Printing & Media

Printing & Media

Protects rolled posters, banners, blueprints, and printed materials during shipping and storage without creasing.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Why E-Commerce, Industrial & Government Buyers Choose Cardboard Boxes 4 U

1,300+ Box Sizes In Stock

Access one of the largest corrugated box inventories available, including hard-to-find long and narrow configurations ready for immediate fulfillment.

Government & Military Spec Compliance

MIL-SPEC and ASTM D5118/D4727 compliant boxes ensure your shipments meet strict government, military, and carrier packaging requirements.

Custom Boxes in 7–10 Business Days

Need a specific size or configuration? Custom corrugated boxes are produced and turned around in as few as 7–10 business days with competitive pricing.

Get the Right Shipping Box for Your Needs Today

Submit your inquiry and our packaging specialists will respond with sizing guidance, compliance details, and a competitive quote for your order.

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