12 x 12 x 72" Telescoping Inner Boxes

This 12 x 12 x 72 inch corrugated inner box is one half of a two-piece telescoping box system. Built from ECT-32 kraft corrugated with a full overlap (FOL) bottom, it slides into a matching outer shell to create an adjustable-length shipping unit — eliminating the need to stock multiple fixed-height boxes for variable-length product runs.

The telescoping format is well-suited for manufacturers, fulfillment centers, and specialty retailers shipping tall or elongated items such as flag poles, curtain rods, architectural tubes, rolled canvas, framed artwork, and industrial pipe fittings. The adjustable depth accommodates length variation without requiring custom packaging.

Each inner box weighs approximately 3.016 lbs and is sold in bundles of 15. One inner carton and one outer carton are required to form a complete set; the outer shell (T121272OUTER) is sold separately. Flute designation is C-flute single wall at ECT-32. Ships via parcel.