PSA Card Centering Requirements 2 — Questions and Answers

Question 1: For PSA 7 (Excellent-Mint), what are the acceptable centering tolerances?

50/50 on all sides
55/45 or better
65/35 or better (Correct answer)
70/30 or better

Correct answer: 65/35 or better

PSA 7 requires 65/35 or better centering on both the front and back of the card, representing a slightly looser tolerance than PSA 8 but still requiring reasonably centered borders.

PSA 7 (Excellent-Mint) allows centering of up to 65/35 on both front and back, meaning the wider border can be up to 65% of the total border space while the narrower border accounts for at least 35%. This tolerance acknowledges that slight off-centering is acceptable for this grade tier while still requiring generally well-centered presentation.

Question 2: Which side of a trading card typically has a looser centering standard in PSA grading?

Front
Back (Correct answer)
Both sides are held to the same standard
Neither, centering is measured diagonally only

Correct answer: Back

PSA applies a slightly looser centering standard to the back of a card compared to the front, reflecting that the front's visual presentation is more critical to collector appeal.

Because the front of a trading card features the primary image and is the face presented for display, PSA applies stricter centering standards to the front. The back, while graded, receives a slightly looser tolerance. This asymmetry reflects real-world manufacturing realities and aligns with collector preferences since front-side centering has the greatest impact on visual appeal and desirability.

Question 3: A card measures 70/30 centering on the front. What is the highest PSA grade this card could potentially receive?

PSA 10
PSA 9
PSA 6 (Correct answer)
PSA 7

Correct answer: PSA 6

70/30 centering exceeds the 65/35 tolerance for PSA 7, making PSA 6 (Excellent) the highest grade achievable based on centering alone.

PSA 7 requires 65/35 or better centering. A card with 70/30 centering fails this threshold, immediately capping its potential grade at PSA 6 or below based on centering alone. PSA 6 (Excellent) accommodates greater centering deviation, so if the card's corners, edges, and surface are in Excellent condition, PSA 6 is achievable.

Question 4: What tool does PSA use to objectively measure card centering?

A standard ruler only
A centering tool (percentage ruler) that measures the ratio of border widths (Correct answer)
A digital scanner exclusively
A magnifying glass to estimate borders

Correct answer: A centering tool (percentage ruler) that measures the ratio of border widths

PSA uses centering tools (percentage rulers) that precisely measure the ratio of border widths on each side, providing objective percentage measurements to apply consistently across all submitted cards.

Centering tools, sometimes called percentage rulers or centering gauges, are calibrated measuring devices that allow graders to precisely determine the ratio of border widths. By measuring the left and right borders and expressing them as percentages, graders can consistently apply PSA's centering standards across millions of cards. This objective measurement is important for consistency.

Question 5: When PSA adds an OC (Off-Center) qualifier to a grade, what does this indicate?

The card barely missed a higher grade due to centering alone
The card's centering is so notably off-center it nearly received a lower numeric grade, and buyers should be aware centering is the card's primary weakness (Correct answer)
The card has no other flaws except centering
The card was graded by a trainee examiner

Correct answer: The card's centering is so notably off-center it nearly received a lower numeric grade, and buyers should be aware centering is the card's primary weakness

The OC qualifier indicates that the card's centering is so notably off-center that it nearly resulted in a lower numeric grade, and buyers should be aware that centering is the card's primary weakness.

PSA's OC (Off-Center) qualifier notifies buyers that while the card received its assigned numeric grade, the centering falls near the bottom of that grade's acceptable range or represents a notable visual weakness. A card graded PSA 8 OC, for example, meets PSA 8 standards in corners, edges, and surface but has centering that barely qualifies for the grade.

Question 6: For a 1960s vintage card, why might PSA apply different centering expectations than for a modern card?

PSA has no special considerations for vintage cards
Vintage cards were often printed with less precise machinery, so PSA accounts for period-typical centering variations (Correct answer)
PSA grades vintage cards using a 1-5 scale
Vintage card centering cannot be measured accurately

Correct answer: Vintage cards were often printed with less precise machinery, so PSA accounts for period-typical centering variations

PSA graders understand that vintage cards were often produced with less precise cutting and printing equipment, making some centering deviation typical for the era. This context is considered alongside the numeric standards.

Card production technology has improved dramatically since the early days of sports card manufacturing. Presses and cutting equipment in the 1950s-1970s had wider tolerances, meaning period-typical cards often show centering variations that reflect manufacturing limitations rather than defects. PSA's experienced graders factor in era-appropriate expectations when evaluating vintage cards.

PSA Card Centering Requirements 2

For PSA 7 (Excellent-Mint), what are the acceptable centering tolerances?