ASTM D5118 certified

ASTM D5118 Certified

ASTM D4727 certified

ASTM D4727 Certified

CSA Class Code A certified

CSA Class Code A Certified

Kraft Shipping Boxes — Long & Covered Options

Kraft Shipping Boxes in long and covered configurations offer durable corrugated solutions for elongated, oversized, and irregularly shaped items. Available in 63+ stock sizes and adjustable telescoping 2-piece designs, they suit e-commerce, industrial, moving, and specialty packaging applications across the USA.

Long Corrugated Boxes
Telescoping Boxes

Our Range of Products

Long Corrugated Boxes

Long Corrugated Boxes

  • 63+ sizes, up to 48" length available
  • Corrugated build protects elongated items
  • Low per-unit cost starting at $0.91
Telescoping Boxes

Telescoping Boxes

  • 2-piece telescoping fits irregular shapes
  • Heavy-duty 200#/ECT-32 kraft corrugated
  • F.O.L. bottom adds structural integrity

Frequently Asked Questions

Where can I purchase extra large shipping boxes?

Extra large kraft shipping boxes, including telescoping boxes up to 48" and beyond, are available directly at Cardboard Boxes 4 U online. Stock sizes ship flat in bundle quantities, and additional or custom sizes up to 72" in length can be ordered by calling (888) 333-9513. Orders can be placed and tracked through an online account portal.

What are long corrugated boxes used for?

What is a telescoping box and how does it work?

What sizes are available for long kraft shipping boxes?

What material are these kraft shipping boxes made from?

Can I order custom sizes for long or telescoping boxes?

Are these shipping boxes sold in bulk or individually?

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

Reliable long and telescoping boxes ensure safe delivery of elongated products for online retailers and storefronts.

Sporting Goods & Recreation

Sporting Goods & Recreation

Purpose-built long boxes protect golf clubs, fishing rods, and sporting equipment during shipping and storage.

Industrial & Manufacturing

Industrial & Manufacturing

Heavy-duty telescoping and long boxes ship rods, pipes, and narrow industrial components safely across facilities.

Arts, Décor & Moving

Arts, Décor & Moving

Adjustable telescoping boxes safeguard artwork, posters, banners, and home décor items during relocation and transit.

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

63+ Long Box Sizes in Stock

With over 63 long and telescoping box sizes readily available, you find the precise fit for rods, clubs, posters, and oversized items without custom lead times.

Heavy-Duty Corrugated Construction

Built from 200#/ECT-32 kraft corrugated board meeting ASTM D5118 and ASTM D4727 standards, these boxes protect elongated and fragile goods through the toughest transit conditions.

Custom Sizes & Volume Flexibility

Beyond stock sizes, custom dimensions are available on request, and bundles ship flat to minimize your storage footprint and reduce overall packaging costs.

Get the Right Box Size — Request a Quote Today

Submit your dimensions and quantity needs and our packaging specialists will respond with pricing, availability, and custom options promptly.

Contact Us Today

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