Quick answer: For most plastic infantry, a 3×2 mm to 5×2 mm neodymium disc seated flush under the base is enough on a steel sheet. Prefer a wider modest grade over a tiny ultra-strong magnet that stresses the glue.
Size before grade
Diameter does more work than chasing N52. Full chart by base diameter: magnet size guide.
Grades explained: N35 vs N52.
Steel sheet pairing
Magnet-to-steel trays avoid polarity errors. DIY box: DIY magnetic case.
Worth doing?
Is magnetising worth it?Compatible with miniatures used in Warhammer 40,000, within the stated base-size limits.
Frequently asked questions
N35 or N52 for bases?
N35–N42 with enough diameter is usually safer for glue joints.
One magnet or two?
Two spaced magnets resist tipping on tall models.
Do display stands need magnets?
No — open stands use gravity. See magnetised bases on stands.
Match magnet diameter to the hollow in the base. Test one model on your actual tray sheet before committing a whole squad. Grade (N35 vs higher) trades strength for brittleness — verify current supplier specs when you buy.
Is magnetising worth it · transport hub.