16 x 16 x 40" Telescoping Inner Boxes

This telescoping inner box measures 16 x 16 x 40 inches (interior) and is built from ECT-32 kraft corrugated with a full overlap (FOL) bottom. The FOL construction distributes load across the entire base, adding structural integrity that standard bottom styles cannot match — a meaningful advantage when packing tall, dense, or heavy items.

Telescoping two-piece designs are the practical solution wherever a fixed-depth carton falls short. E-commerce fulfillment centers, manufacturing shippers, and warehouse distribution operations use them to handle tall or irregularly dimensioned products without stocking a separate box for every height variation. The inner slides into the outer at the point of packing, setting depth to match the load.

This listing covers the inner carton only; one inner and one outer are required to complete a set. The matching outer carton (T161640OUTER) is sold separately. Inner boxes are sold in bundles of 10, with each weighing approximately 2.712 lbs.