Supply Air 18x15x14 Corrugated Shipping Boxes — Cardboard Mailer Boxes for Packing, Moving & Storage (Multiple Pack Sizes)

Highlights

• Supply Air 18x15x14 Corrugated Shipping Boxes are single-wall corrugated cardboard containers measuring 18 inches long by 15 inches wide by 14 inches deep interior dimensions. Constructed from 32 ECT kraft fiberboard with C-flute corrugation (3/16 inch thick). Regular Slotted Container (RSC) design with four top flaps and four bottom flaps that meet at center when closed
• DIMENSIONS: 18 inches length x 15 inches width x 14 inches height interior usable space, accommodates items measuring up to those dimensions when packed
• MATERIAL: Single-wall corrugated fiberboard consisting of kraft linerboards with a fluted medium layer, 32 ECT (Edge Crush Test) rating representing pounds of force per linear inch the material withstands before crushing, C-flute profile measuring approximately 3/16 inch thickness
• CONSTRUCTION: Regular Slotted Container (RSC) style with scored fold lines, four flaps on top and four flaps on bottom meet at center seam when folded, flaps secured by applying packing tape across seams
• WEIGHT: Each box weighs approximately 1.2 pounds when flat (knocked down), total pack weight scales with quantity selected

Description

Supply Air 18x15x14 Corrugated Shipping Boxes are corrugated cardboard containers for mailing, packing, and storage applications. Each box measures 18 inches long by 15 inches wide by 14 inches deep interior dimensions. Constructed from single-wall corrugated fiberboard with 32 ECT (Edge Crush Test) rating, the material consists of a fluted medium layer sandwiched between two kraft linerboards. The brown kraft exterior provides a neutral surface for labeling and addressing. The box design uses a Regular Slotted Container (RSC) style, in which the four flaps on the top and four flaps on the bottom meet at the center when folded. Flaps are secured by applying pressure-sensitive packing tape or water-activated tape across the seams. Each box arrives flat (knocked down) for compact storage and is assembled by folding along the score lines and sealing the bottom flaps. The 18x15x14 inch interior accommodates items measuring up to those dimensions. The boxes are manufactured in the United States. This listing is available in multiple pack quantities to suit different volume needs. Each unit weighs approximately 1.2 pounds. The corrugated fiberboard construction resists compression forces up to the 32 ECT specification, which represents the pounds of force per linear inch the material can withstand before crushing. The flute profile is C-flute, measuring approximately 3/16 inch thick, providing a balance of stacking strength and cushioning. Assembly process: lay the flat blank with the manufacturer's joint facing up, fold the side panels perpendicular to the base, fold the bottom flaps inward so they meet at the center, apply tape across the seam, then repeat the process for the top flaps after loading contents.