Back to the home page

Guide: which base does each unit use?

Base sizes vary between games and units. Here are examples from The Old World, Warhammer 40,000 and Age of Sigmar. Each table shows the unit base size and matching products among our bases and movement trays.

The Old World: square and cavalry bases

The Old World uses square and rectangular bases. Legacy units come from Games Workshop's official Legacy lists. The Warriors of Chaos sizes appear in the Ravening Hordes errata.

Unit Published base size Our base in that size
Skaven · Giant Rats (Legacy) 25 × 25 mm Pack of ten 25 × 25 mm bases
Warriors of Chaos · Chaos Marauders 30 × 30 mm 30 × 30 mm square base
Ogre Kingdoms · Leadbelchers (Legacy) 40 × 40 mm 40 × 40 mm MDF base with magnet slot
Warriors of Chaos · Skin Wolves 50 × 50 mm 50 × 50 mm MDF base with magnet slot
Chaos Dwarfs · Hobgoblin Wolf Riders (Legacy) 25 × 50 mm Pack of five 25 × 50 mm MDF bases with magnet slots
Warriors of Chaos · Marauder Horsemen 30 × 60 mm 30 × 60 mm cavalry base
Chaos Dwarfs · Bull Centaur Renders (Legacy) 50 × 75 mm 50 × 75 mm base
Ogre Kingdoms · Mournfang Cavalry (Legacy) 50 × 100 mm 50 × 100 mm base

Warhammer 40,000: round and oval bases

These examples come from the June 2026 Event Companion. Ovals give length and width; rounds give diameter.

Unit Published base size Our base in that size
Drukhari · Kabalite Warriors 25 mm round 25 mm round base
Space Marines · Scout Squad 28.5 mm round 28.5 mm round base
Space Marines · Assault Intercessor Squad 32 mm round 32 mm round base
Space Marines · Aggressor Squad 40 mm round 40 mm round base
Chaos Space Marines · Chaos Bikers 75 × 42 mm oval 75 × 42 mm oval base
Aeldari · Avatar of Khaine 80 mm round 80 mm round base

Age of Sigmar: bases for infantry and mounts

The April 2026 Battle Profiles give the Skaven sizes; the January 2025 Orruk Warclans profiles give the Ironjawz sizes. Infantry and mounted models from one army use different shapes.

Unit Published base size Our base in that size
Skaven · Clanrats 25 mm round 25 mm round base
Skaven · Acolyte Globadiers 28.5 mm round 28.5 mm round base
Ironjawz · Ardboyz 32 mm round 32 mm round base
Ironjawz · Brutes 40 mm round 40 mm round base
Skaven · Ratling Guns 60 × 35 mm oval 60 × 35 mm oval base
Skaven · Clawlord on Gnaw-beast 75 × 42 mm oval 75 × 42 mm oval base
Ironjawz · Gore-gruntas 90 × 52 mm oval 90 × 52 mm oval base

Two quick questions

What if my miniatures are on a different base? Our base adapters cover size changes, including a 25 to 28.5 mm round adapter and a 20 to 25 mm square adapter for The Old World.

Is the tray size the size of the base? Yes: it is the size of each slot. The tray's overall size depends on the number of files and ranks you choose.