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Box damage · crease damage

LEGO box crease damage grading.

AI crease-detection grading for sealed LEGO boxes.

What crease damage is

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.

Why it matters

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.

Severity tiers

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.

TierSignalGrade cap
MINTNone visible at arm's lengthAFA 90+
NMHairline, ≤2cm, off-centerAFA 85
EX≤5cm, visible at arm's lengthAFA 80
VG>5cm or crosses the front printAFA 75 or below
Prevention

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.
Get the verdict for your box

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.

Crease damage FAQ

Frequent questions about crease damage.

What's the difference between a crease and a dent on a LEGO box?

A crease is linear (has length); a dent is a point impact. Creases are more visible and harder to ignore — they catch light along the full length. Dents are localized and can be hidden by photo angle on a resale listing. Graders treat creases as more punitive than equivalent-area dents.

Can a creased LEGO box still grade NM?

Yes if the crease is hairline (under 2cm), off-center, and not on the front face. Visible creases on the front face cap you at EX 8.0 with most graders. Creases through the print area drop further.

Will a crease affect the resale value of a sealed LEGO box?

10–20% typical impact for short off-center creases. 30%+ for visible creases on the front face. Creases through the print or near the seal stickers can drop value by half because they raise reseal questions.

LEGO Box Crease damage Grading — Value Impact & AI Detection | BrickGauge