LEGO box crease damage grading.
AI crease-detection grading for sealed LEGO boxes.
How the AI sees it.
A crease is any linear deformation that runs along a face or edge — typically caused by light pressure on a finger-shaped object or a shipping strap. Unlike a dent (point impact) a crease has length.
The grader perspective.
Creases on the front face are the second-worst surface defect after seal compromise. They're permanent, they catch light at every angle, and they're impossible to mask in a resale photo. Graders score creases on the surface axis, weighted heavily for length × visibility.
↦ Scored on the BrickGauge surface axis.
Crease damage by tier.
Each tier maps to a defect signal and the grade ceiling it forces. Pre-grade your box with BrickGauge to see which tier yours lands in.
| Tier | Signal | Grade cap |
|---|---|---|
| MINT | None visible at arm's length | AFA 90+ |
| NM | Hairline, ≤2cm, off-center | AFA 85 |
| EX | ≤5cm, visible at arm's length | AFA 80 |
| VG | >5cm or crosses the front print | AFA 75 or below |
Don’t create the damage.
- 01Don't grip the box with your fingertips — handle by the bottom face only.
- 02Avoid shipping with crossed straps — they leave linear pressure marks on the front.
- 03Keep heavy items off the box top during storage. Even a paperback over 6 months can crease the top face.
- 04Use rigid corner protectors for shipping; flat-pack mailers crease under any side pressure.
Browse the rest.
See your crease damage scored.
Upload six photos and BrickGauge measures the crease damage on your specific box, scores it on the surface axis, and rolls it into an overall verdict. Two free inspections on signup — credits never expire.