Medium Shipping & Moving Boxes 18 x 12 x 12 in (5-Pack) - Extra

In this review the focus is on practical moving and shipping needs: these medium shipping & moving boxes measure 18 x 12 x 12 in and come as a pack of five, designed for anyone who needs dependable, mid-sized cartons for transport or storage. The single biggest reason to buy is their professional-grade corrugated construction with a 200 lb test rating, which delivers higher rigidity and burst resistance than ordinary cartons. Customers looking for sturdy, easy-to-assemble boxes that perform well for both household moves and parcel shipping will find them especially useful.

Key Features

• Professional-grade corrugated construction: The 200 lb test corrugated cardboard provides high strength and rigidity to protect contents during handling and transit.
• Shock-absorbing cushioning structure: The fluted corrugated sheet between liners offers cushioning that helps protect fragile items from impact.
• Compact medium size: At 18 x 12 x 12 in internal dimensions these boxes suit a wide range of household and small-business items without wasted space.
• Flat storage and easy assembly: Boxes ship flat in bundles to save storage space and fold together quickly when needed for moving or shipping.
• Shipping carrier compatible: Built to be suitable for USPS, UPS and FedEx shipping while remaining lightweight to minimize postage costs.

Who It's For

These boxes are best for homeowners moving belongings, small businesses shipping inventory, and anyone packing medium-sized items such as books, kitchenware, or sporting goods that require stronger-than-average protection. The balance of internal volume and strength makes them a versatile choice for repeated use during a move or for regular shipping needs.

Those who need very large cartons, specialized archival storage, or custom-sized packaging should look elsewhere; this pack is limited to five medium cartons at a fixed size and is optimized for general-purpose moving and shipping rather than oversized or highly specialized items.

Pros & Cons

Pros

• High-strength 200 lb test corrugated board provides excellent durability for transit and storage.
• Shock-absorbing corrugated flute structure protects fragile contents without extra padding for many items.
• Flat-packed bundles save storage space and make staging and logistics simpler before a move.
• Well suited for carrier shipping while remaining lightweight to help control shipping costs.

Cons

• Pack contains only five boxes, which may be insufficient for larger moves and require ordering multiple packs.
• Medium size may be too small for long items or large appliances, so customers with bulky goods will need different sizes.

Specifications

Brand	IDL Packaging
Pack quantity	5 boxes
Internal dimensions	18 x 12 x 12 in (L x W x H)
Corrugated strength	200 lb test
Construction	Fluted corrugated sheet between two liners
Storage	Shipped flat in tied bundles

Our Verdict

These medium shipping & moving boxes are a solid, value-minded choice for people who need reliable, mid-size cartons that protect contents well. The 200 lb corrugated construction and cushioning flute make them durable for moving and carrier shipping, and the flat-pack convenience helps with staging. Buy these if you need sturdy medium boxes for household moves or small business shipments; order multiple packs if you need larger quantities.

Frequently Asked Questions

Are these boxes suitable for shipping fragile items?
Yes. The fluted corrugated construction provides cushioning, but fragile items may still benefit from additional padding or void fill for extra protection.

Do these boxes meet common carrier requirements?
Yes. They are described as suitable for USPS, UPS and FedEx shipping and are lightweight while still offering strong support.

How are the boxes shipped and stored before use?
Boxes arrive flat and tied in bundles to minimize storage space and are designed for quick and easy assembly at time of use.