55/45 centering

A 55/45 card is gem-level centering. It's inside the 55/45 front limit for a PSA 10 and a CGC Gem Mint 10, so centering won't hold the card back.

Drawn to scale. The left border takes 55% of the combined left and right borders.

How 55/45 grades

The best grade each company allows when 55/45 is the card's worse axis.

Company	On the front	On the back
PSA	PSA 10	PSA 10
BGS subgrade	9.5	10 Pristine
CGC	CGC Gem Mint 10	CGC Gem Mint 10

BGS front subgrades here assume the other axis is well centered, since BGS judges both axes together. CGC doesn't publish back limits below a 9.

Measure your card

55/45 in millimeters

On a card whose left and right borders add up to 6 mm, 55/45 centering means a 3.3 mm border on one side and 2.7 mm on the other, a difference of 0.6 mm. Most people can see it once they look for it.

Questions

Can a 55/45 card get a PSA 10?

Yes, on centering. 55/45 is inside PSA's 55/45 front limit for a Gem Mint 10, so corners, edges and surface decide the grade.

Is 55/45 good centering?

55/45 is gem-level centering. It's inside the 55/45 front limit for a PSA 10 and a CGC Gem Mint 10, so centering won't hold the card back.

See every ratio on the centering chart, or read the full centering requirements.