BGS vs PSA vs SGC: Slab Dimensions Every Collector Should Know

Buying a case that fits PSA but not BGS is the most common — and most expensive — mistake new collectors make. Here are approximate numbers — confirm current dimensions with each grader.

Why Slab Size Matters

Generic "universal" cases promise to fit everything. In practice, that means they fit nothing properly. A BGS slab in a PSA-sized foam well rattles. A PSA in a BGS well drops. Both situations cause the surface scuffing that knocks display appeal — and resale value — down a tier.

The Numbers

| Grader | Approx. dimensions (mm) | Notable trait | | --- | --- | --- | | PSA | 92 × 130 × 5 | The de facto standard most cases target | | BGS | 92 × 134 × 6.5 | Taller and thicker; subgrades visible on label | | SGC | 90 × 130 × 5.5 | Tuxedo black border, slightly narrower | | CGC | 92 × 132 × 5.5 | Smooth label, slightly chunkier than PSA | | TAG | 92 × 130 × 6 | AI-graded, thicker shell |

What This Means in Practice

If you collect a single grader, buy cases sized for that grader. Check our Slab Compatibility Guide for what each product page states fits.

Verify Before You Buy

Run any slab through our Slab Compatibility Guide before purchasing a case.