This telescoping inner box measures 10 x 10 x 48 inches and is built from ECT-32 kraft corrugated with a full overlap (FOL) bottom construction. The FOL base distributes load across the entire footprint, providing reinforced stacking strength and resistance to puncture at the base — a critical advantage for tall or dense shipments.

The two-piece telescoping format is engineered for long, awkwardly dimensioned, or variable-height items that standard RSC boxes cannot accommodate. Manufacturers shipping pipe, rod stock, or architectural trim, distributors fulfilling lighting and electrical components, and fulfillment operations handling rolled goods or oversized sporting equipment all benefit from the adjustable height range this format allows.

Constructed from ECT-32 single wall corrugated, this inner box slides into the matching outer box (T101048OUTER) to form a complete, secure unit. One inner and one outer carton are required per shipment. The matching outer box is sold separately. Bundles contain 20 inner boxes.