Corrugated boxes
Choose boxes by size, strength, and shipping cost
Choosing the right corrugated box comes down to item size, product weight, handling risk, and shipping cost. Packrift helps buyers compare dimensions, board strength, wall type, and case quantity so they can protect the product without paying for unnecessary empty space.
Start with the smallest safe internal dimensions, then compare strength and handling needs before ordering in volume.
Shop by Size
Use the smallest box that leaves enough room for protective fill. Oversized cartons increase dimensional weight, waste void fill, and raise shipping cost.
Shop by Strength
Box strength matters when products are heavy, fragile, stacked, or shipped through multiple handling points.
Use a Mailer Instead?
Use a mailer when the item is flat, flexible, light, and unlikely to crush. Use a box when the item is rigid, fragile, high-value, irregularly shaped, or needs void fill.
Corrugated box FAQ
How do I choose the right corrugated box size?
Measure the product length, width, and height, then add only the clearance needed for protective material. The right box should fit securely without forcing the item in or leaving excessive empty space.
What does 32 ECT mean?
32 ECT means the corrugated board is rated for edge crush strength of 32 pounds per inch. It is commonly used for standard single-wall shipping boxes and general parcel shipping.
Are double-wall boxes always better?
No. Double-wall boxes can be stronger, but they add cost and weight. Use them when the product is heavy, fragile, stacked, or likely to face rough handling.
Sizing tools & calculators
Pick exact dimensions and forecast shipping cost before you order.
Compare options
Strength and format trade-offs explained side by side.
By business type
How operators in different fulfillment models pick their box program.