How to Easy Reshape a shipping box
Turn any corrugated box into a different size with just two slits and a fold. No material removed, no waste, and the box still looks clean and professional from the outside. Takes about 60 seconds.
Watch it in action
Video: turning a square box into a rectangle — only making slits, not cutting anything off.
Step-by-step guide
Measure your item
Measure the length, width, and height of your item. Add about 1 inch on each side for padding and void fill. These are your target box dimensions.
Calculate the slit position
Decide how many inches to narrow the box. For example, to turn a 12×12×12 into a 12×6×18: you're reducing the width by 6 inches (12→6), which adds 6 inches to the height (12→18). Mark 6 inches from each edge on both 12-inch walls.
Cut vertical slits on both walls
Using a box cutter, cut a straight vertical line from the top edge to the bottom edge at each mark. You're cutting through the wall — but NOT removing any material. Just slits. Do this on BOTH opposing walls (the two walls you're narrowing).
Fold inward at the slits
Push the outer sections of each slit wall inward. The wall naturally folds at the slit lines. The box becomes narrower on that dimension and taller — the material redistributes. The flaps fold to close the new taller box.
Tape the flaps and ship
Fold the top flaps (they'll overlap differently now) and tape as normal. From the outside, the box looks like a standard rectangular box — no visible cuts, no tape patches, no messy edges.
The math: what sizes can you make?
| Original | Cut from width | Result |
|---|---|---|
| 12×12×12 | 3" | 12×9×15 |
| 12×12×12 | 6" | 12×6×18 |
| 16×12×8 | 4" | 16×8×12 |
| 18×14×12 | 6" | 18×8×18 |
| 10×10×6 | 4" | 10×6×10 |
Formula: reduce one dimension by X inches → height increases by X inches. Length stays the same. You can also cut the long walls instead of the short walls for a different shape.
Why Easy Reshape saves money
Better snugness = less void fill
A box that's 90% snug needs a handful of paper. A box that's 60% snug needs a pound of peanuts. Easy Reshape turns a loose box into a snug one.
Lower DIM weight = cheaper shipping
Carriers charge by dimensional weight (L×W×H÷139). A reshaped box has the same cardboard but a smaller volume — your shipping bill drops.
Zero waste = zero cost
Unlike scoring down (which trims material), Easy Reshape uses 100% of the original box. Nothing goes in the trash.
Professional appearance
The finished box looks like a standard factory-made rectangle. No visible cuts, no tape patches. Your customer won't know it was modified.