ASTM D5118 certified

ASTM D5118 Certified

ASTM D4727 certified

ASTM D4727 Certified

CSA Class Code A certified

CSA Class Code A Certified

6" x 6" x 48" Boxes

6" x 6" x 48" boxes are long, narrow corrugated shipping boxes designed for packaging and transporting elongated items such as fishing rods, curtain rods, posters, and banners. Available in telescoping and standard configurations, these durable kraft corrugated boxes provide reliable protection for specialty items during shipping and e-commerce fulfillment.

Long Corrugated Boxes
Telescoping Boxes
V3C Boxes ASTM D5118
Shipping Boxes
Military Boxes
File Storage Boxes
Stock Boxes
Bulk Cargo Boxes / Gaylord Boxes
Gaylord Boxes
Flat Corrugated Boxes
Printers Boxes - Corrugated Cardboard Boxes
White Corrugated Boxes
Multi-Depth Corrugated Boxes
Moving 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
  • Corrugated build protects elongated items
Telescoping Boxes

Telescoping Boxes

  • 2-piece telescoping design fits tall items
  • Heavy-duty 200#/ECT-32 kraft corrugated build
  • F.O.L. bottom adds structural integrity
V3C Boxes ASTM D5118

V3C Boxes ASTM D5118

  • Pre-printed "Fragile" labels and up arrows
  • Flap tabs speed up packing efficiency
  • Specialty boxes for wardrobes, bikes, mirrors
Shipping Boxes

Shipping Boxes

  • Over 1,000 stock sizes ready to ship
  • Single, double & triple wall options available
  • Custom orders fulfilled in 7-10 business days
Military Boxes

Military Boxes

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

File Storage Boxes

  • Multiple styles: auto-lock, string & button
  • Color-coded options for easy file organization
  • Fits letter, legal & oversized file formats

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Frequently Asked Questions

What are 6" x 6" x 48" boxes used for?

These long, narrow boxes are ideal for shipping elongated items such as fishing rods, curtain rods, golf clubs, posters, banners, and artwork. Their slim 6"x6" cross-section and 48" length provide a snug fit for long items, minimizing movement during transit and reducing the risk of damage.

Are 6" x 6" x 48" boxes available as telescoping sets?

What material are these boxes made from?

Can I order 6" x 6" x 48" boxes in custom sizes?

What is the bottom construction on telescoping 6" x 6" x 48" boxes?

Are these boxes sold individually or in bulk quantities?

Do these boxes meet any shipping carrier standards?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

E-Commerce & Retail Fulfillment

E-Commerce & Retail Fulfillment

Ship long products like posters, banners, and curtain rods securely with right-sized 48" corrugated boxes.

Sporting Goods & Recreation

Sporting Goods & Recreation

Protect fishing rods, golf clubs, and sports equipment during transit with durable 6x6x48 corrugated packaging.

Arts, Crafts & Photography

Arts, Crafts & Photography

Safely ship artwork, framed posters, canvas rolls, and photography prints in slim long corrugated boxes.

Industrial & Commercial Shipping

Industrial & Commercial Shipping

Package pipes, rods, banners, and narrow industrial components for freight and commercial distribution.

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 Shippers Choose Cardboard Boxes 4 U

1,300+ Box Sizes in Stock

Access one of the largest inventories of corrugated box sizes, including hard-to-find long and narrow configurations like 6"x6"x48", ready for immediate fulfillment.

Specialty & Compliance Expertise

From government MIL-SPEC corrugated to ASTM D5118-compliant boxes, we supply specialty packaging configurations most suppliers simply don't carry.

Custom Sizes on Demand

Need a non-standard dimension? Custom corrugated boxes are produced to your exact specifications with short lead times and low minimum order quantities.

Get the Right Box Size — Request a Quote Today

Submit your inquiry and our packaging specialists will respond with sizing recommendations, pricing, and bulk order options within one business day.

Contact Us Today

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