Supply Air 4x4x5 Corrugated Cardboard Shipping Boxes – Brown Kraft Mailer Boxes for Packing, Moving & Storage (Multiple Pack Sizes)

Highlights

• Supply Air 4×4×5 inch corrugated cardboard boxes constructed from single-wall corrugated board with 32 ECT (Edge Crush Test) rating. Brown kraft exterior with fluted corrugated medium between two linerboard facings. Interior dimensions: 4 inches length × 4 inches width × 5 inches height. Accommodates items measuring up to 4×4×5 inches
• CONSTRUCTION: Single-wall corrugated cardboard with 32 ECT rating withstands 32 pounds per linear inch of stacking force. Board thickness measures approximately 0.125 inches. Brown kraft paper surface accepts labels, stamps, and handwritten addressing
• DIMENSIONS: Each box measures 4 inches length × 4 inches width × 5 inches height interior usable space. Exterior dimensions approximately 4.125 × 4.125 × 5.125 inches when assembled. Base footprint: 4×4 inches. Vertical rectangular profile with 5-inch height
• CLOSURE: Standard RSC (Regular Slant Container) design with overlapping flaps. Assembly process: fold bottom flaps inward, fold longer flaps over shorter flaps, secure with packaging tape. Ships flat (knocked down) to reduce storage volume before assembly
• QUANTITY: Available in multiple pack sizes: 25, 50, 100, 200, 400, or 500 boxes per pack. Each box weighs approximately 0.15 pounds. Flat-packed configuration compresses for efficient warehousing before assembly

Description

Supply Air 4x4x5 Corrugated Shipping Boxes are constructed from single-wall corrugated cardboard with a 32 ECT (Edge Crush Test) rating. Each box measures 4 inches length × 4 inches width × 5 inches height interior dimensions. The brown kraft exterior consists of a fluted corrugated medium sandwiched between two linerboard facings. The boxes ship flat (knocked down) and assemble by folding along scored lines into a standard RSC (Regular Slant Container) configuration with overlapping flaps that close and seal with tape. Each box accommodates items measuring up to 4×4×5 inches. The 32 ECT rating indicates the boxes withstand 32 pounds per linear inch of stacking force before the flute structure collapses. Boxes are manufactured in the United States. Available in multiple pack quantities: 25, 50, 100, 200, 400, or 500 boxes per pack. The flat-packed boxes reduce storage volume before assembly. The brown kraft paper surface accepts labels, stamps, and handwritten addressing. The 4×4 base footprint with 5-inch height creates a vertical rectangular profile. Single-wall corrugated board thickness measures approximately 0.125 inches. Each box weighs approximately 0.15 pounds. Manufactured from paper content.