Triangle Corrugated Mailing Tubes
Image SKU Dimensions Color/Print Tubes/Bundle
Price/Case
50 100 200
Add To Cart
2 x 18 1/4 PH-213185 2 x 18 1/4" White 50
$1.23 $1.20 $1.16
2 x 24 1/4 PH-213233 2 x 24 1/4" White 50
$1.94 $1.89 $1.84
2 x 30 1/4 PH-213263 2 x 30 1/4" White 50
$2.02 $1.96 $1.91
2 x 36 1/4 PH-213273 2 x 36 1/4" White 50
$2.71 $2.64 $2.57
3 x 18 1/4 PH-213415 3 x 18 1/4" White 50
$2.49 $2.42 $2.35
3 x 24 1/4 PH-213441 3 x 24 1/4" White 50
$1.67 $1.62 $1.58
3 x 30 1/4 PH-213505 3 x 30 1/4" White 50
$2.48 $2.41 $2.35
3 x 36 1/4 PH-213515 3 x 36 1/4" White 50
$2.04 $1.98 $1.93

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Triangle Corrugated Mailing Tubes for Stable Long Packages

Triangle corrugated mailing tubes create a three-sided white single-wall package for compatible rolled or elongated products. Flat faces keep the package from rolling like a round tube and provide stable surfaces for storage and labeling. Select width and length around the protected item, then assemble the locking features for the actual shipment.

Choose Width and Length From the Finished Product

Measure the item after rolling or adding sleeves, tissue and other protection. Confirm that the triangular interior provides usable clearance at its narrowest points, not just across the broad face. Leave room at both ends for the locking structure so the contents do not interfere with closure.

For a larger range of flat-sided cross-sections, compare square corrugated mailing tubes. Round tubes may provide a closer material fit around certain rolls. Choose the profile that best supports the product and warehouse or carrier workflow.

Assemble the Three-Sided Structure Completely

Crease and lock the corrugated panels according to the design, keeping the long seam square and the end features fully engaged. Add tape where the contents, repeated handling or route require more closure security. Use the flat exterior for readable labels without obstructing locks or seams.

A non-rolling shape improves stability on many surfaces but does not guarantee conveyor compatibility or stacking performance. Product weight, package length, board condition and unsupported spans still matter. Test representative shipments and replace tubes with crushed corners, torn locks, moisture damage or distorted panels.

Triangle Corrugated Mailing Tubes FAQs

What is the advantage of a triangle mailing tube?

Its flat faces keep it from rolling and provide stable surfaces for handling and labels.

How is a triangle tube sized?

Match its usable width and length to the protected item while allowing for end closures.

Is a triangle tube always better than a round tube?

No. Choose based on product fit, closure, storage and distribution workflow.

Can triangle tubes be stacked?

Flat faces help orientation, but validate the exact load, board condition and storage arrangement.

Need Help Choosing Triangle Corrugated Mailing Tubes?

Packaging HERO can help you compare triangle width, length, product clearance and closure requirements.

Contact Packaging HERO