48"x16"x16" Double Wall Boxes, 275 lb.Test/DW/ECT-48 Kraft, 10 Pack

48" x 16" x 16" heavy-duty double-wall corrugated shipping boxes (Kraft). Constructed for strong stacking and shipping protection with ECT-48/275 lb breaking strength. Sold as a bundle (pack of 10) and ships flat for easy storage. Double-wall construction provides foldability and superior load capacity for moving, storage and industrial shipping. Multiple SKU listings reference Partners Brand / Box Packaging; primary materials are paper/cardboard (kraft) with B-flute construction. Key features include heavy-duty double wall strength, foldable design, ECT-48 stacking strength, 100 lb (per-box) rated load and recycled content attributes in some listings.