18x18x18 Double Wall Shipping and Packing Box (2 Pack)

18 x 18 x 18 Heavy Duty Double Wall Shipping & Packing Box – Cardboard 📦 When strength and reliability matter, choose our extra-durable double wall boxes. Built from 71 ECT, 1/3" thick kraft corrugated cardboard, these cartons are engineered to handle heavy loads, long transits, and demanding applications with ease. Product Features: 📏 Dimensions: 18" x 18" x 18" (inside) 🛡️ Material: 71 ECT double wall corrugated cardboard ⚖️ Strength: Extra-strong design for maximum protection 🌎 Sustainably Made: Produced in the USA with recyclable kraft corrugated board 🚚 Versatile Use: Suitable for shipping by ground, air, rail, or sea 🏠 Multi-Purpose: Ideal for moving, storage, or shipping heavy, fragile, or bulky items Weight: 3.2 Lbs Each Why Choose Double Wall Boxes? ✔ Twice the strength of standard single-wall cartons✔ Protects against crushing, punctures, and rough handling✔ Perfect for industrial shipping, e-commerce, or personal moving needs Order your heavy duty 18x18x