Sleeve fit ring – check inner size and stack height, 10 card formats (free)

Free test part: does your sleeved card fit our card boxes, and how tall are 20 cards? One frame per format, 3–6 g.

A small frame with exactly the inner size of our card boxes. Put your sleeved card in: it should sit loosely without jamming. Then stack 20 cards inside and compare them with the two notches on the gauge post.

• Lower notch (8.8 mm): 20 cards in standard sleeves. If your 20 cards stay below it, 100 fit the "standard sleeves" box.

• Upper notch (11.2 mm): 20 cards in premium or board-game sleeves (90–120 µm).

• One frame per format, a few minutes of print time; all ten formats in the download.

• Standard American (56 × 87 mm): inside 61 × 93 mm

• Standard European (59 × 92 mm): inside 64 × 96 mm

• Mini American (41 × 63 mm): inside 46 × 69 mm

• Mini European (44 × 68 mm): inside 48 × 73 mm

• TCG / poker (63.5 × 88 mm): inside 68 × 93 mm

• Tarot (70 × 120 mm): inside 75 × 124 mm

• Square 70 (70 × 70 mm): inside 75 × 75 mm

• Big Square 80 (80 × 80 mm): inside 84 × 84 mm

• Japanese / small (59 × 86 mm): inside 64 × 91 mm

• 70 × 110: inside 74 × 114 mm

Dimensions: Inner sizes taken from the Gamegenic datasheet (sleeve outer size + 2 mm), stack height computed (±4–6 mm). The ring itself has not been tested with cards yet.

Material: PLA is enough, PETG works too. Do not leave it in the sun or a hot car: PLA softens from about 55 °C.

Not a toy. Storage for game components and small parts; keep out of reach of small children.

Print settings

• Material: PLA (or PETG). Do not leave it in the sun or a hot car: PLA softens from about 55 °C.

• Layer height 0.2 mm, 2 walls, 15 % infill, no supports.

• Orientation: Lying as the file is laid out, no supports.

• Print time approx. 14 min and about 4 g (default variant Standard American: complete part; other variants differ).

Safety

Not a toy. Storage for game components and small parts; keep out of reach of small children. Do not store in the sun or a hot car.

Fit

Inner size = sleeve outer size per datasheet + 2 mm (1 mm per side).

FAQ

My card jams in the frame. What now? Then your sleeves are larger than the sleeve sizes in the Gamegenic datasheet we design for, or your printer prints inner sizes tighter. Tell us the format and sleeve brand; the boxes are parametric.

Which material? PLA is enough, PETG works too. Do not leave it in the sun or a hot car: PLA softens from about 55 °C.

Are there magnets? No. Lids hold by friction, a groove or a snap nose; magnets are deliberately left out.

Brand names

Gamegenic is named only as the source of the sleeve dimensions (datasheet). Magmacode is not affiliated with Gamegenic; brand and product names only describe where the numbers come from.

How it's made

Parametric CAD (build123d, Python), exact solids. The CAD code was written with an AI assistant and checked by us; no AI-generated meshes or images. Renders are made from the CAD in Blender and show placeholder contents without artwork; they are not photos.

License

CC BY 4.0: you may share and adapt it, also commercially, as long as you credit Magmacode and link the license (https://creativecommons.org/licenses/by/4.0/).

Matching card boxes, deck boxes, card trays and organizers are in the Magmacode profile.