Magic, One Piece and Yu-Gi-Oh! card centering: what to measure

Which format should you select for each game?

Choose the format from the physical card, not its language or country of production. The checker calibrates standard cards at 63.5 × 88.9 mm and small cards at 59 × 86 mm. Retail size descriptions often round standard cards to roughly 63 × 88 mm; our geometry examples use that rounded size explicitly. These nominal dimensions are a calibration choice, not a promise that every copy measures identically.

Dragon Shield’s standard-format compatibility includes Magic and One Piece; its small-format description identifies Yu-Gi-Oh! as a smaller-card game. A Japanese-language One Piece card does not become small merely because the packaging calls a sleeve “Japanese size”. Measure unusual promotional or oversized items separately rather than forcing them into a normal format.

These are the checker’s nominal calibration dimensions, not measured dimensions of every printing. The 63 × 88 mm example elsewhere is deliberately rounded. Border ratios do not use the whole-card width as denominator.

Selecting the wrong format changes physical scaling and the assumed rectification geometry. Correct it before recording millimetre results. The ratio itself uses the two opposing margins, not the whole card width. A correct size setting cannot compensate for choosing the wrong inner printed line.

What should you measure on black-border or white-border Magic cards?

On a conventional framed Magic card, measure from the physical cut to the continuous boundary where the outer black or white margin meets the main printed frame. The illustration box is further inside and does not represent the complete frame's relationship to the cut. The text box, title line and mana symbols are also internal layout elements, not interchangeable centering references.

Black borders against a black background can make the physical cut disappear. Use a dark matte surface with enough contrast to see the edge, rather than assuming the darkest possible background is always best. With a white border on a white surface, the same problem reverses. Adjust the background or side lighting until the paper outline is visible without creating a hard glare band.

Edge wear is separate from centering. A chip in a black margin can appear as a bright boundary fragment, and a stain on a white margin can change its apparent colour. Follow the intact continuous printed transition rather than scattered wear marks. If too much of that transition is missing or obscured, state that the centering evidence is weak.

How do extended-art and borderless Magic treatments differ?

Inspect the exact treatment rather than assuming that every full-art card lacks a frame. Wizards describes extended-art treatments in which the illustration extends across borders. Some designs retain parts of a conventional frame while extending artwork in particular directions. A measurable top/bottom pair does not automatically establish a measurable left/right pair.

For a borderless face with artwork reaching the physical cut, there may be no defensible continuous inner rectangle. Do not centre the character or a title box and present it as a conventional border ratio. Record the face as unsupported by the border method unless a consistent design reference can be justified. The reverse may still be measurable, but a reverse-only result does not complete the front assessment.

Which boundaries are useful on One Piece cards?

Use the printed frame of the exact version in hand. The official Bandai card list helps distinguish regular designs from alternate illustrations; it is a design reference, not a measurement of the cut of your physical copy. A catalogue image can help you understand a layout while telling you nothing about your individual card's border widths.

On a design with a visible continuous frame, measure its outer transition against the physical cut. Do not use a character's face, cost icon or text panel just because it looks easy to align. Foil and textured areas can obscure that transition, so change the light and confirm that the same frame is being followed on opposite sides. For a treatment without a usable frame, preserve the limitation rather than drawing an arbitrary rectangle.

What is different when measuring a Yu-Gi-Oh! card?

The smaller format makes correct size selection especially relevant for millimetres. Measure the outer printed coloured frame relative to the physical cut, not the illustration window inside it. Frame colour can vary with card type, but the opposing-border calculation does not. Photograph the reverse separately and identify its actual continuous printed boundary without centring the internal logo or spiral.

Worked example: a hypothetical small-format front has 2.75 mm on one side and 2.25 mm opposite. Their sum is 5.00 mm; 2.75 ÷ 5.00 × 100 = 55%, giving 55/45. With the other front axis at 50/50, the PSA front ceiling is 10 GEM MT. Do not divide by the full 59 mm width: that would calculate a different quantity.

Second example: a framed Magic or One Piece front has 3.60 and 2.40 mm margins. The sum is 6.00 mm; the wider share is 60%, or 60/40. With the other axis at 50/50, the PSA front ceiling is 9 MINT. The game name does not change that model calculation, and the examples do not specify actual factory border widths.

Are the grading limits different for each of these games?

Centering Lab applies the selected house's model to the measured front and reverse geometry; it does not invent a separate threshold for every game. The table makes that scope explicit. House policies can distinguish categories or special cases, and an interpreted TCG extension should remain labelled as such rather than becoming an “official One Piece rule”.

Limits apply to both axes separately. For BGS front, the worse axis must meet the loose limit and the other axis the tight limit. — means no separate numerical back rule in this model. A ceiling is not an overall grade.

Use the house comparison for the evidence behind the limits and full standards for every model band. For camera alignment and manual correction, follow the measurement procedure and method. The front/back guide explains why a measurable reverse cannot replace a missing front, and the grading checklist covers condition after centering.

Frequently asked questions