48" x 6" x 38" Telescoping Box 10/Bundle

Dimensions: Actual Height: 76" without overlap of top over bottom Material: C flute Features: All boxes open along the length (first dimension). Seams are glued. Specifications: Meets ASTM D5118 Terminology: 200# Test vs. 32 ECT (Edge Crush Test): 200# Test: 60% stronger bursting strength. Recommended by UPS for shipping up to 40 lbs. Pound Test Refers to Bursting Strength: 200# test boxes withstand 200 lbs/sq.in. of side wall pressure before bursting. 32 ECT: Recommended by UPS for shipping up to 30 lbs. ECT Refers to Stacking Strength: 32 ECT boxes withstand 32 lbs/linear inch of stacking weight before crushing. An alternative for lightweight shipments. Here's a breakdown of the key points: Dimensions: The boxes have an actual height of 76 inches without any overlap of the top over the bottom. The height measurement does not account for any overlap between the flaps of the box. Material: The boxes are constructed using C flute corrugated material. The "C flu