Last updated: October 14, 2026. What changed: every unit re-checked against the current 4th Edition Battle Profiles — Stormcast infantry (including Vindictors) on 40mm, Dracothian Guard on 90x52mm, the Great Unclean One on 130mm, Plague Drones on 60mm, Hexwraiths and Freeguild Cavaliers on 60x35mm ovals, and units now in Warhammer Legends marked as Legends. Base sizes reflect Games Workshop's current Age of Sigmar 4th Edition Battle Profile cards. Battlescroll FAQs occasionally adjust specific units — always check the latest version on the Warhammer Community site before a tournament. Previewed September 2026: the Khazalite Holds (a new duardin faction that the Fyreslayers fold into) and a new Seraphon battletome. Base sizes for their new kits will be added here once Games Workshop publishes them.
Every Age of Sigmar base size for every faction, in one chart. Quick-reference tables for Order, Chaos, Death, and Destruction — plus a centerpiece characters table for named heroes like Archaon, Alarielle, and Nagash.
Getting the right base size matters. In Age of Sigmar, the base controls movement distance, coherency, line of sight, and combat range. Tournament organizers enforce official base sizes, and even in casual games it keeps things fair and your army looking sharp.
This guide covers the four Grand Alliances — Order, Chaos, Death, and Destruction — with each faction listed and the base sizes their units actually use. If your model came with a base in the box, that is the official size. The Battle Profile card in your Battletome (or the free Warhammer app) is the canonical source per unit.
LITKO manufactures precision laser-cut miniature bases in the standard Age of Sigmar sizes — round and oval, in clear acrylic, plywood, and with magnetic bottoms. Need a size we don't stock? The LITKO BaseMaker tool lets you order custom dimensions cut to spec.
- Age of Sigmar Quick Reference Chart
- 4th Edition Base Sizes — What Changed
- Order — Base Sizes by Faction
- Chaos — Base Sizes by Faction
- Death — Base Sizes by Faction
- Destruction — Base Sizes by Faction
- Centerpiece Heroes & Named Characters
- Download Printable PDF (with 10% off coupon)
- How to Identify Your Base Size
- Choosing a Base Material: Acrylic vs. Plywood vs. Magnetic
- Need a Custom Size? Use LITKO BaseMaker
- Frequently Asked Questions
Age of Sigmar Base Sizes — Quick Reference Chart
Age of Sigmar uses round and oval bases, with the same diameters as Warhammer 40K. Many sizes overlap because Chaos Daemons and several other factions cross between the two systems. The chart below covers the main base sizes used in current 4th Edition AoS, what unit types use it, and common examples.
| Base Size | Unit Type | Example Units | Shop at LITKO |
|---|---|---|---|
| 25mm Round | Battleline, Hordes, Light Infantry | Clanrats, Moonclan Stabbas, Deathrattle Skeletons, Chainrasps, Witch Aelves, Daemonettes, Mortek Guard | Shop 25mm Bases |
| 32mm Round | Elite Infantry, Standard Heroes | Blood Warriors, Bloodreavers, Chaos Warriors, Namarti Thralls, Plaguebearers, Tzaangors, Pink Horrors | Shop 32mm Bases |
| 40mm Round | Heavy Infantry, Smaller Monsters | Stormcast Vindictors, Liberators, Annihilators, Putrid Blightkings, Skullreapers, Chaos Chosen | Shop 40mm Round Bases |
| 50mm Round | Monstrous Infantry | Crypt Horrors, Vargheists, Kurnoth Hunters, Spirit Hosts | Shop 50mm Round Bases |
| 60mm Round | Large Heroes, Small Monsters | Yndrasta, the Celestial Spear, Dankhold Troggboss, Varghulf Courtier, Plague Drones, Stormfiends | Shop 60mm Round Bases |
| 75x42mm Oval | Cavalry | Chaos Knights, Varanguard, Blood Knights, Vanguard-Palladors, Fiends of Slaanesh | Shop Cavalry Bases |
| 90x52mm Oval | Large Cavalry, Daemonic Cavalry, Small Monsters | Dracothian Guard, Gore-Gruntas, Bloodcrushers, Mighty Skullcrushers, Mancrusher Gargants, Mournfang Pack | Shop Oval Bases |
| 60x35mm Oval | Light & Specialty Cavalry | Hexwraiths, Freeguild Cavaliers, Vanari Dawnriders, Seekers of Slaanesh, Sekhar, Fang of Nulahmia. (Note: current Blood Knights kit ships on 75x42mm.) | Shop 60x35mm Oval Bases |
| 105x70mm Oval | Treelord-class Monsters | Treelord, Treelord Ancient, Spirit of Durthu, Gothizzar Harvester, Stormdrake Guard | Shop 105x70mm Oval Bases |
| 100mm Round | Greater Daemons | Keeper of Secrets, Lord of Change, Skarbrand, Be'lakor, The Shadow Queen (Morathi's monstrous form) | Shop 100mm Bases |
| 120x92mm Oval | Centerpiece Monsters | Bloodthirsters, Stonehorn Beastriders, Thundertusks, Mortarchs on Mount (Nagash uses 130mm round), Katakros, Mortis Engine, Stegadon, Verminlords | Shop 120x92mm Ovals |
| 130mm Round | Behemoths | Nagash, Glottkin, Great Unclean One, Royal Terrorgheist, Mega-Gargants | Shop 130mm Bases |
| 160mm Round | Apex Centerpieces | Archaon the Everchosen, Alarielle the Everqueen, Megaboss on Maw-Krusha (Gordrakk), Arachnarok Spider, Karazai the Scarred | Shop 160mm Bases |
| 170x105mm Oval | Largest Mounted Heroes | Lord-Celestant on Stardrake, Drakesworn Templar, Black Coach, Arkanaut Ironclad | Shop 170x105mm Oval Bases |
Source of truth: Games Workshop publishes a free Battlescroll FAQ for each season that lists every Age of Sigmar unit's official base size. Download the latest from the Warhammer Community site, or check the unit's Battle Profile card in the Warhammer app. If the box says one size and the FAQ says another, the FAQ wins for tournament play.
Browse All Age of Sigmar Compatible Bases
Age of Sigmar 4th Edition — What Changed for Bases
Games Workshop launched Age of Sigmar 4th Edition in July 2024 with the Skaventide box. The good news: no sweeping base-size overhaul came with the new edition. The standard 25mm / 32mm / 40mm / 50mm rounds and the 75x42mm / 90x52mm / 120x92mm ovals that defined 3rd Edition all carried forward.
What does change between editions and Battlescrolls is occasional adjustments to specific units. A unit might shift from 32mm round to 40mm round if its sculpt was redone, or a centerpiece may move from a round to an oval to better fit modern movement rules. These are tracked in the seasonal Battlescroll FAQ rather than in the Battletomes themselves.
If you are rebasing models: always check the current Battlescroll first. Tournament TOs default to "the size on the latest Battlescroll" rather than "the size in the box," so a 2018-era box with a 25mm base may actually require a 32mm base under current rules.
Order — Base Sizes by Faction
The Grand Alliance of Order covers Sigmar's loyalist factions: the Stormcast Eternals, the rebuilt mortal cities, the elven enclaves of Lumineth and Idoneth, the duardin holds, and the lizardmen of the Seraphon. Most Order infantry sit on 32mm rounds — Stormcast Eternals are the big exception on 40mm — with 25mm for lighter rank-and-file such as Freeguild Steelhelms, Witch Aelves, and Skinks.
Stormcast Eternals
The poster-boys of Age of Sigmar. Stormcast infantry now sit on 40mm rounds across the board — Vindictors, Liberators, Annihilators, Praetors, Vanguard-Hunters, and Prosecutors all use 40mm in the current Battle Profiles. Dracothian Guard and the Lord-Celestant on Dracoth ride 90x52mm ovals (Vanguard-Palladors use 75x42mm); the Lord-Celestant on Stardrake centerpiece uses a 170x105mm oval.
| Base Size | Stormcast Unit | Shop at LITKO |
|---|---|---|
| 32mm Round | Aetherwings (the only 32mm Stormcast unit in the current range) | Shop 32mm Bases |
| 40mm Round | Vindictors, Liberators, Annihilators, Praetors, Vanguard-Hunters, Vanguard-Raptors, Prosecutors, Lord-Veritant, Knight-Vexillor (Sequitors, Castigators, and Judicators are also 40mm, but moved to Legends in June 2025) | Shop 40mm Round Bases |
| 60mm Round | Yndrasta, the Celestial Spear | Shop 60mm Round Bases |
| 90x52mm Oval | Dracothian Guard (Tempestors, Concussors, Desolators, Fulminators), Lord-Celestant on Dracoth, Stormstrike Palladors (Vanguard-Palladors use 75x42mm) | Shop 90x52mm Oval Bases |
| 170x105mm Oval | Lord-Celestant on Stardrake, Drakesworn Templar (Karazai the Scarred uses a 160mm round) | Shop 170x105mm Oval Bases |
Cities of Sigmar
The mortal heart of Order: Freeguild humans, Dispossessed duardin, and Ironweld war machines. Most infantry is 25mm round (Freeguild Steelhelms, Longbeards, Hammerers), with Freeguild Fusiliers and Gallants on 28.5mm; heroes and allied elites sit on 32mm. Freeguild Cavaliers use 60x35mm ovals (the Freeguild Cavalier-Marshal uses 75x42mm).
| Base Size | Cities of Sigmar Unit | Shop at LITKO |
|---|---|---|
| 25mm Round | Freeguild Steelhelms, Longbeards, Hammerers, Ironbreakers, Irondrakes | Shop 25mm Bases |
| 32mm Round | Alchemite Warforger, Aqshian Pyrocaster, Callis and Toll, allied Auric Hearthguard and Vanari Auralan Wardens / Sentinels | Shop 32mm Bases |
| 60x35mm Oval | Freeguild Cavaliers, Drakespawn Knights (the Freeguild Cavalier-Marshal uses 75x42mm; Demigryph Knights are no longer in the current range) | Shop 60x35mm Oval Bases |
Sylvaneth, Idoneth Deepkin, Lumineth, Daughters of Khaine
The aelven and tree-folk factions. Light infantry on 25mm or 32mm; heavy and ranger units on 32mm or 40mm; centerpiece monsters on 100mm round, 105x70mm oval (Treelord-class), or 160mm round. Alarielle the Everqueen anchors the Sylvaneth list on a 160mm round — tied with Archaon the Everchosen, Megaboss on Maw-Krusha, and the Arachnarok Spider for the largest round base in Age of Sigmar.
| Base Size | Aelven / Sylvaneth Unit | Shop at LITKO |
|---|---|---|
| 25mm Round | Witch Aelves, Sisters of Slaughter | Shop 25mm Bases |
| 32mm Round | Tree-Revenants, Spite-Revenants, Dryads, Vanari Auralan Wardens, Vanari Auralan Sentinels, Namarti Thralls, Namarti Reavers | Shop 32mm Bases |
| 40mm Round | Blood Sisters, Khinerai Heartrenders, Khinerai Lifetakers, Morathi-Khaine | Shop 40mm Round Bases |
| 50mm Round | Kurnoth Hunters | Shop 50mm Round Bases |
| 60x35mm Oval | Akhelian Morrsarr Guard, Akhelian Ishlaen Guard, Vanari Dawnriders | Shop 60x35mm Oval Bases |
| 105x70mm Oval | Treelord, Treelord Ancient, Spirit of Durthu | Shop 105x70mm Oval Bases |
| 160mm Round | Alarielle the Everqueen | Shop 160mm Bases |
Kharadron Overlords, Fyreslayers, Seraphon
Duardin sky-pirates (Kharadron) and lava-priests (Fyreslayers) plus the lizardmen Seraphon. Kharadron Arkanaut Company on 25mm, with Skywardens and Endrinriggers on 32mm; Fyreslayer Vulkite Berzerkers on 32mm with Hearthguard Berzerkers also on 32mm. Seraphon Skinks on 25mm; current Saurus Warriors Battle Profile lists them on 32mm round. Stegadon and Bastiladon use larger ovals.
| Base Size | Seraphon Unit | Shop at LITKO |
|---|---|---|
| 25mm Round | Skinks | Shop 25mm Bases |
| 32mm Round | Saurus Warriors | Shop 32mm Bases |
| 50mm Round | Skink Starseer, Terradon Riders, Ripperdactyl Riders | Shop 50mm Round Bases |
| 120x92mm Oval | Stegadon, Stegadon Chief | Shop 120x92mm Oval Bases |
Note on 28.5mm bases: The 28.5mm round is a legacy Games Workshop size that pre-dates the modern 32mm standard. It still appears on some older sculpts. LITKO stocks 28.5mm rounds for direct replacement. Shop 28.5mm bases here.
Chaos — Base Sizes by Faction
The Grand Alliance of Chaos covers the Slaves to Darkness mortals, the four daemon legions (Khorne, Tzeentch, Nurgle, Slaanesh), the Skaven hordes, and the Beasts of Chaos (now in Warhammer Legends). The Skaven, in particular, field some of the largest Battleline blocks in the game and lean heavily on 25mm rounds.
Slaves to Darkness
The mortal followers of the Dark Gods. Chaos Warriors are the question most players ask — the modern Battle Profile lists them on 32mm round, a change from the legacy 25mm size used in older Warriors of Chaos boxes. If you are rebasing an old Warhammer Fantasy Chaos army, expect to swap up to 32mm. Chaos Knights and Varanguard ride 75x42mm ovals, Chaos and Gorebeast Chariots use 120x92mm ovals, and the centerpiece is Archaon the Everchosen on his 160mm round.
| Base Size | Slaves to Darkness Unit | Shop at LITKO |
|---|---|---|
| 28.5mm Round | Darkoath Marauders (the old Chaos Marauder and Marauder Horsemen kits are no longer in the current range) | Shop 28.5mm Bases |
| 32mm Round | Chaos Warriors, Chaos Furies, Darkoath Chieftain, Darkoath Warqueen | Shop 32mm Bases |
| 40mm Round | Chaos Chosen, Chaos Lord, Exalted Hero of Chaos, Chaos Sorcerer Lord | Shop 40mm Round Bases |
| 75x42mm Oval | Chaos Knights, Varanguard, Darkoath Chieftain on Warsteed | Shop Oval Bases |
| 100mm Round | Be'lakor, Abraxia, Spear of the Everchosen | Shop 100mm Bases |
| 160mm Round | Archaon the Everchosen | Shop 160mm Bases |
Daemons of Chaos (Khorne, Tzeentch, Nurgle, Slaanesh)
The four Chaos God factions. Greater Daemons sit on 100mm rounds (Keeper of Secrets, Lord of Change, Skarbrand), a 130mm round (Great Unclean One), or 120x92mm ovals (Bloodthirsters). Their rank-and-file daemons mostly live on 32mm rounds (Bloodletters, Plaguebearers, Pink Horrors), with Daemonettes and Blue / Brimstone Horrors on 25mm. Bloodcrushers and Mighty Skullcrushers of Khorne both ride on 90x52mm ovals — the same oval size used by Gore-Gruntas and Dracothian Guard. Plague Drones and Beasts of Nurgle use 60mm rounds, Fiends of Slaanesh 75x42mm ovals, and Seekers of Slaanesh 60x35mm ovals.
| Base Size | Daemon Unit | Shop at LITKO |
|---|---|---|
| 32mm Round | Bloodletters, Plaguebearers, Pink Horrors, Flamers of Tzeentch (Daemonettes and Blue / Brimstone Horrors are 25mm) | Shop 32mm Bases |
| 40mm Round | Nurglings (Beasts of Nurgle are 60mm; Fiends of Slaanesh are 75x42mm ovals) | Shop 40mm Round Bases |
| 90x52mm Oval | Bloodcrushers, Mighty Skullcrushers | Shop Oval Bases |
| 100mm Round | Keeper of Secrets, Lord of Change, Skarbrand (the Great Unclean One is 130mm) | Shop 100mm Bases |
| 120x92mm Oval | Bloodthirster of Insensate Rage, Bloodthirster of Unfettered Fury, Wrath of Khorne Bloodthirster | Shop 120x92mm Ovals |
Maggotkin of Nurgle & Mortals
Plaguebearers sit on 32mm rounds; Putrid Blightkings on 40mm; Plague Drones, Pusgoyle Blightlords, and Beasts of Nurgle on 60mm rounds; the Maggoth Lords (Bloab, Morbidex, Orghotts) on 100mm; and the Glottkin, Rotigus, and the Great Unclean One on 130mm rounds. Nurgle is the easiest faction to rebase — very few sculpts have moved between sizes.
| Base Size | Maggotkin / Nurgle Unit | Shop at LITKO |
|---|---|---|
| 32mm Round | Plaguebearers, Pestigors, Rotswords, Poxbringer | Shop 32mm Bases |
| 40mm Round | Putrid Blightkings, Lord of Plagues, Nurglings | Shop 40mm Round Bases |
| 60mm Round | Plague Drones, Pusgoyle Blightlords, Beasts of Nurgle | Shop 60mm Round Bases |
| 130mm Round | The Glottkin, Rotigus, Great Unclean One | Shop 130mm Bases |
Blades of Khorne, Disciples of Tzeentch, Hedonites of Slaanesh
Mixed mortal-and-daemon armies. Khorne mortals (Bloodbound) include Blood Warriors (32mm), Wrathmongers (40mm), and Skullreapers (40mm); their cavalry are Mighty Skullcrushers on 90x52mm ovals with Bloodthirsters as 120x92mm centerpieces. Tzeentch's Kairic Acolytes and Tzaangors sit on 32mm. Hedonites lean heavily on 25mm Daemonettes, with Seekers on 60x35mm ovals and Fiends, Slickblade Seekers, and Blissbarb Seekers on 75x42mm ovals.
Beasts of Chaos & Skaven
Beasts of Chaos moved to Warhammer Legends on 1 June 2025 (still playable, but no longer updated or supported for tournament play): Ungors on 25mm, Bestigors on 32mm, Bullgors on 50mm, and centerpiece monsters like the Cygor and Ghorgon on 120x92mm ovals. Skaven Clanrats and Plague Monks sit on 25mm rounds and Stormvermin on 28.5mm; Stormfiends (60mm) and Verminlords (120x92mm ovals) scale up.
Death — Base Sizes by Faction
The Grand Alliance of Death runs on bone, ghost, and the dead. Soulblight Gravelords field everything from 25mm Skeletons to Nagash on a 130mm round. Nighthaunt are entirely incorporeal — most models are sculpted floating above the base, and their units run from 25mm Chainrasps to 50mm Spirit Hosts. Ossiarch Bonereapers are the construct legion; Flesh-eater Courts swing from Ghouls (25mm) up to a Royal Terrorgheist (130mm round).
Soulblight Gravelords
| Base Size | Soulblight Unit | Shop at LITKO |
|---|---|---|
| 25mm Round | Deathrattle Skeletons, Deadwalker Zombies | Shop 25mm Bases |
| 32mm Round | Wight King, Necromancer (Barrow Guard are 28.5mm; the Vampire Lord on foot is 40mm) | Shop 32mm Bases |
| 50mm Round | Vargheists | Shop 50mm Round Bases |
| 60x35mm Oval | Sekhar, Fang of Nulahmia, Barrow Knights, Dire Wolves, Lady Annika (not interchangeable with 75x42mm) | Shop 60x35mm Oval Bases |
| 75x42mm Oval | Blood Knights | Shop Oval Bases |
| 120x92mm Oval | Mannfred, Neferata (Mortarchs on Mount), Mortis Engine, Coven Throne; Arkhan the Black (now an Ossiarch Bonereapers Mortarch) | Shop 120x92mm Ovals |
| 130mm Round | Nagash (the Terrorgheist and Vampire Lord on Zombie Dragon are also 130mm, but both are now Legends) | Shop 130mm Bases |
Nighthaunt, Ossiarch Bonereapers, Flesh-eater Courts
Nighthaunt run on Chainrasps (25mm), Hexwraiths (60x35mm oval), Spirit Hosts (50mm), and centerpiece Mortarchs. Ossiarch Bonereapers have Mortek Guard (25mm), Necropolis Stalkers (50mm), and the Gothizzar Harvester on a 105x70mm oval. Flesh-eater Courts are Crypt Ghouls (25mm), Crypt Horrors / Crypt Flayers (50mm), and a Royal Terrorgheist or Royal Zombie Dragon centerpiece on a 130mm round.
Destruction — Base Sizes by Faction
The Grand Alliance of Destruction is brawn-first. Orruks (Ironjawz and Kruleboyz; Bonesplitterz moved to Legends in June 2025) range from Hobgrot Slittaz on 25mm to a Megaboss on Maw-Krusha (Gordrakk) on a 160mm round. Sons of Behemat field nothing but giants — Mancrushers on 90x52mm ovals, Mega-Gargants (Warstomper, Gatebreaker, Kraken-Eater) on 130mm rounds. Ogor Mawtribes' Mournfang Pack ride 90x52mm ovals; Stonehorn and Thundertusk on 120x92mm ovals.
Orruk Warclans (Ironjawz, Bonesplitterz, Kruleboyz)
| Base Size | Orruk Unit | Shop at LITKO |
|---|---|---|
| 25mm Round | Hobgrot Slittaz (Kruleboyz); Moonclan Stabbas / Shootas are Gloomspite Gitz but share the size | Shop 25mm Bases |
| 32mm Round | 'Ardboyz (Ironjawz), Gutrippaz and Man-skewer Boltboyz (Kruleboyz); Savage Orruks (Bonesplitterz, Legends since June 2025) | Shop 32mm Bases |
| 40mm Round | Brutes, Brute Ragerz, Weirdbrute Wrekkaz (Ironjawz), Murknob with Belcha-banna (Kruleboyz) | Shop 40mm Round Bases |
| 90x52mm Oval | Gore-Gruntas (Ironjawz) | Shop Oval Bases |
| 160mm Round | Megaboss on Maw-Krusha, Gordrakk the Fist of Gork | Shop 160mm Bases |
Sons of Behemat, Gloomspite Gitz, Ogor Mawtribes
Sons of Behemat are pure giants — Mancrusher Gargants on 90x52mm ovals, Mega-Gargants (Warstomper, Gatebreaker, Kraken-Eater) on 130mm rounds. Gloomspite Gitz Stabbas/Shootas are 25mm Battleline; Squig Hoppers 32mm; the Arachnarok Spider centerpiece on a 160mm round. Ogor Mawtribes Gluttons sit on 40mm; Mournfang Pack on 90x52mm ovals; Stonehorn and Thundertusk on 120x92mm ovals.
Centerpiece Heroes & Named Characters
The named legendary characters that anchor most armies. Each row below is a frequently-searched character — the base size is from the current 4th Edition Battle Profile, with verification flags where the answer has shifted between Battlescrolls.
| Base Size | Character | Faction | Shop at LITKO |
|---|---|---|---|
| 100mm Round | Be'lakor | Slaves to Darkness | Shop 100mm Bases |
| 100mm Round | Keeper of Secrets, Lord of Change, Skarbrand | Slaanesh / Tzeentch / Khorne | Shop 100mm Bases |
| 100mm Round | The Shadow Queen (Morathi-Khaine, her aelf form, is 40mm) | Daughters of Khaine | Shop 100mm Bases |
| 120x92mm Oval | Bloodthirsters (all three current warscrolls) | Blades of Khorne | Shop Oval Bases |
| 120x92mm Oval | Arkhan the Black, Mannfred Mortarch of Night, Neferata Mortarch of Blood | Soulblight Gravelords (Arkhan: Ossiarch Bonereapers) | Shop Oval Bases |
| 120x92mm Oval | Katakros, Mortarch of the Necropolis | Ossiarch Bonereapers | Shop Oval Bases |
| 130mm Round | Nagash, Supreme Lord of the Undead | Soulblight Gravelords | Shop 130mm Bases |
| 130mm Round | The Glottkin, Great Unclean One | Maggotkin of Nurgle | Shop 130mm Bases |
| 160mm Round | Archaon the Everchosen | Slaves to Darkness | Shop 160mm Bases |
| 160mm Round | Alarielle the Everqueen | Sylvaneth | Shop 160mm Bases |
| 160mm Round | Megaboss on Maw-Krusha, Gordrakk the Fist of Gork | Ironjawz | Shop 160mm Bases |
| 130mm Round | Mega-Gargants (Warstomper, Gatebreaker, Kraken-Eater) | Sons of Behemat | Shop 130mm Bases |
| 170x105mm Oval | Lord-Celestant on Stardrake, Drakesworn Templar | Stormcast Eternals | Shop 170x105mm Oval Bases |
Sizes verified against the current Age of Sigmar Battle Profile reference (October 2026). Battlescroll FAQs occasionally adjust specific units — bookmark this page and check the latest Battlescroll on warhammer-community.com before any tournament.
Download the Printable PDF
Want the main sizes at the painting table? The downloadable PDF is a one-page quick-reference card (updated October 2026) that you can fold and stash with your army, and it comes with a 10% discount on LITKO bases for Age of Sigmar.
Download the AoS Base Sizes PDF
Includes AOSBASES10 — 10% off Age of Sigmar bases at litko.net.
How to Identify Your Base Size
Three steps in order:
- Check the box. Modern Games Workshop kits include the official base. The size on the sprue is the size to use.
- Check the Battle Profile card. The free Warhammer app lists every unit's official base size. The card overrides anything in the box if Games Workshop has updated the unit since release.
- Check the latest Battlescroll FAQ. The seasonal Battlescroll PDF on the Warhammer Community site is the final authority for tournament play. If your Battle Profile says 32mm and the Battlescroll says 40mm, the Battlescroll wins.
If you are rebasing an older Warhammer Fantasy army for Age of Sigmar — which uses round bases instead of squares — LITKO's base adapter trays let you keep the original square base and add the correct round perimeter for AoS legality.
Choosing a Base Material: Acrylic vs. Plywood vs. Magnetic
LITKO cuts AoS-compatible bases in three materials. Each has trade-offs:
- Clear acrylic — the most popular choice. Works for flying-stand units (Hexwraiths, Spirit Hosts, Khinerai), invisible against any tabletop, easy to magnetize. 1.5mm thick is the standard.
- Plywood — warmer, takes paint and basing materials well. Best for rank-and-file infantry where the base will be fully covered with flock or sand.
- Magnetic-bottom acrylic — for transport. Sticks to LITKO flexible steel sheets in a case. Recommended for armies that travel to tournaments.
Need a Custom Size? Use LITKO BaseMaker
LITKO stocks the less common Age of Sigmar ovals as standard products — 60x35mm ovals for light cavalry, 105x70mm ovals for Treelords, and 170x105mm ovals for the Lord-Celestant on Stardrake — so no custom order is needed for those. For truly non-standard sizes — conversion projects, or anything Games Workshop hasn't sold in years — LITKO's BaseMaker tool lets you order custom round, oval, square, or rectangular bases cut to your exact specifications. Pick the shape, dimensions, material, and thickness; we cut it on demand.
New to custom bases? Our companion guide walks through how to order custom bases to any size — what BaseMaker can produce, choosing a material, exact sizing, and ordering in volume tiers.
Frequently Asked Questions
Did 4th Edition change Age of Sigmar base sizes?
No sweeping changes. The standard base sizes (25mm / 32mm / 40mm / 50mm rounds; 75x42mm / 90x52mm / 120x92mm ovals) all carried forward from 3rd Edition. Specific units occasionally shift between sizes via Battlescroll FAQs, but if you have a 3rd Edition army you don't need to rebase wholesale.
What size base do Chaos Warriors use in Age of Sigmar?
The current Battlescroll lists Chaos Warriors on 32mm round. This was a notable change from the legacy 25mm size used for many years. Always confirm against the current Battle Profile card, especially if you're rebasing an older Warriors of Chaos army from Warhammer Fantasy.
Are 40K and Age of Sigmar base sizes the same?
The diameters are the same. A 32mm round is a 32mm round in either game. Where the systems differ is the unit catalog — AoS has factions like Stormcast Eternals and Sylvaneth that don't exist in 40K, and vice versa for Space Marines and Necrons. Many Chaos Daemon units (Bloodletters, Plaguebearers, Pink Horrors) are legal in both systems on identical bases.
Do I need to rebase old Warhammer Fantasy models for Age of Sigmar?
Technically yes, since AoS uses round bases and Fantasy used squares. In practice, most casual events accept square-based legacy armies, and base adapter trays let you keep the original base while satisfying tournament requirements. For competitive AoS play, plan to rebase to rounds.
What size base does Archaon use?
Archaon the Everchosen sits on a 160mm round. It is the largest round base in Age of Sigmar, shared with Alarielle the Everqueen, Megaboss on Maw-Krusha (Gordrakk), and the Arachnarok Spider. (Mega-Gargants sit on 130mm rounds — large, but a size class below the apex centerpieces.) LITKO stocks 160mm rounds in clear acrylic.
How big is Alarielle's base?
Alarielle the Everqueen uses a 160mm round per the current Battle Profile — tied with Archaon the Everchosen, Gordrakk (Megaboss on Maw-Krusha), and the Arachnarok Spider as the largest round base in Age of Sigmar.
What size are AoS cavalry bases?
Age of Sigmar cavalry use three oval sizes. 60x35mm: Freeguild Cavaliers, Hexwraiths, Vanari Dawnriders, Seekers of Slaanesh. 75x42mm: Chaos Knights, Varanguard, Blood Knights, Vanguard-Palladors. 90x52mm: Dracothian Guard, Gore-Gruntas, Bloodcrushers, Mournfang Pack. Larger mounts: Stonehorn and Thundertusk on 120x92mm ovals, Maw-Krusha on a 160mm round.
Related Base Size Guides
- All Base Size Guides — Master index for every game system
- All Miniature Base Sizes — Size-first reference, every shape and material
- Warhammer Base Sizes Guide — 40K, Age of Sigmar, The Old World, Kill Team
- Kings of War Base Sizes Guide — Multi-basing, formations, Old World comparison
- Star Wars: Legion Base Sizes Guide — All factions, notched bases
- Historical Wargaming Basing Guide — DBA, Black Powder, SAGA, Chain of Command
- Magnets for Miniatures Guide — magnet sizes, magnetizing & storing your army
- How to Base Your Miniatures — flock, tufts, static grass & scatter to finish your bases
Disclaimer: LITKO Game Accessories is an independent manufacturer of gaming bases and accessories. LITKO is not affiliated with, endorsed by, or sponsored by Games Workshop. Warhammer, Age of Sigmar, and all associated names and imagery are trademarks or registered trademarks of Games Workshop Ltd.