18" x 18" x 16" Corrugated Shipping Boxes – 20 Pack

Heavy-Duty Cardboard Moving, Packing & Storage Boxes (32 ECT)

These 18 x 18 x 16 corrugated cardboard boxes provide a durable and reliable packaging solution for shipping, moving, storage, and e-commerce fulfillment. Manufactured from 32 ECT single-wall C-flute kraft corrugated board, these cartons deliver industry-standard strength while remaining lightweight and easy to assemble.

With approximately 3 cubic feet of capacity, this box size is ideal for packing household items, retail merchandise, clothing, linens, electronics, and general warehouse inventory. The balanced dimensions make these cartons especially useful for moving, organizing, and shipping medium to large items while maintaining manageable weight.

Each bundle includes 20 flat-packed corrugated boxes, helping reduce storage space and shipping costs while allowing quick assembly when needed.

Key Features

• Box Dimensions (Internal): 18" L × 18" W × 16" H

• Capacity: Approximately 3 cubic feet

• Material: Single Wall C-Flute Kraft Corrugated Cardboard

• Strength Rating: 200#/32 ECT (Edge Crush Test)

• Estimated Weight Capacity: Up to 65 lbs (evenly distributed)

• Quantity: 20 boxes per bundle

• Construction: Durable industrial-grade corrugated board

• Assembly: Quick and easy folding design

• Packaging: Ships flat for efficient storage and lower freight costs

• Sustainability: Reusable and fully recyclable

• Made in the USA

Common Uses

These 18x18x16 shipping boxes are widely used for:

• Moving household goods

• E-commerce order fulfillment

• Packing clothing, linens, and bedding

• Shipping retail products

• Warehouse storage and organization

• Mailing bulky but lightweight items

• Crafting, packaging, and general logistics

Their square base and medium height make them excellent for stacking and protecting items during shipping and transport.

Why Choose 32 ECT Corrugated Boxes?

32 ECT (Edge Crush Test) cartons are the most widely used shipping boxes in the packaging industry because they provide the ideal balance of durability and cost efficiency. They are designed to withstand stacking pressure during transport while keeping packaging lightweight.

Benefits include:

• Reliable protection during shipping

• Lightweight construction for reduced shipping costs

• Strong stacking performance in warehouses

• Cost-effective packaging for businesses and movers

Space-Saving Shipping & Storage

All cartons ship flat to maximize efficiency:

• Saves warehouse space

• Reduces freight and storage costs

• Allows quick assembly when needed

Simply fold and seal with packing tape to create a sturdy shipping container.