Kings of War Base Sizes Guide | Infantry, Cavalry, Large Infantry & Multi-Basing Chart

Last updated: May 2026. Covers Kings of War 3rd Edition and 4th Edition (released December 2025). Always check the latest rulebook or FAQ for your edition.

Kings of War by Mantic Games is a rank-and-file fantasy wargame built around formations. Unlike skirmish games where each model acts independently, Kings of War units move and fight as blocks—and those blocks have specific footprints measured in millimeters. Getting the right base size determines whether your models rank up correctly, fit their movement trays, and meet tournament requirements.

Individual models use 20mm square bases for Infantry (Inf) or 25mm square bases for Heavy Infantry (HI), 25x50mm rectangular bases for cavalry, and 40mm or 50mm square bases for large infantry and large cavalry. The base size is determined by unit type, not faction—a single army often includes both Infantry and Heavy Infantry units. But the real magic of Kings of War is multi-basing—mounting an entire unit on a single base sized to the formation footprint.

LITKO manufactures precision laser-cut individual bases and KoW-specific unit bases in plywood for every standard formation size. If you need a custom dimension, the LITKO BaseMaker tool lets you order any shape and size.

Quick Reference: All Base Sizes by Unit Type

Every unit in Kings of War has two base dimensions to know: the individual base each model stands on, and the formation footprint for the unit size (troop, regiment, horde, or legion). The chart below shows individual base sizes per unit type with a link to shop.

Unit Type	Individual Base	Example Units	Shop at LITKO
Infantry (Inf)	20x20mm Square	Skeleton Warriors, Goblin Rabble, Militia, Zombies, Levy, Bowmen	Shop 20mm Bases
Heavy Infantry (HI)	25x25mm Square	Ironclad, Palace Guard, Abyssal Guard, Paladin Foot Guard, Ax	Shop 25mm Bases
Cavalry	25x50mm Rectangular	Knights, Mounted Scouts, Cavalry, Riders, Charioteers	Shop 25x50mm Bases
Large Infantry	40x40mm Square	Ogres, Trolls, Earth Elementals, Werewolves, Large Infantry	Shop 40mm Bases
Large Cavalry	50x50mm Square	Monstrous Cavalry, Drakon Riders	Shop 50mm Bases
Chariots	50x100mm Rectangular	All standard chariots across factions	Shop Chariot Bases
Monsters / Titans	50x50mm or 75x75mm	Dragons, Giants, Greater Elementals, Winged Characters	Shop 50mm Square
War Engines	Varies by model	Catapults, Ballistae, Cannons—use base provided with model	Custom via BaseMaker

Infantry & Heavy Infantry (20mm & 25mm Bases)

Infantry is the backbone of every Kings of War army. The base size is determined by unit type, not by faction. In the Kings of War rules, Infantry (Inf) is a distinct unit type from Heavy Infantry (HI), and each type has its own base size:

• Infantry (Inf) — uses 20x20mm square bases. Examples: Skeleton Warriors, Goblin Rabble, Militia, Zombies, Levy, Bowmen.
• Heavy Infantry (HI) — uses 25x25mm square bases. Examples: Ironclad (Dwarfs), Paladin Foot Guard (Basileans), Abyssal Guard, Palace Guard (Elves), Ax (Orcs).

A single faction can contain both unit types. For example, Basileans field Militia (Infantry, 20mm) alongside Paladin Foot Guard (Heavy Infantry, 25mm). Always check the unit type listed in your army list entry—it tells you exactly which base size to use. The formation footprints differ based on whether the unit type is Infantry or Heavy Infantry.

Infantry (Inf) — 20mm Formation Sizes

Infantry (Inf) units on 20mm bases rank up 5 models wide and use these formation footprints:

Unit Size	Models	Footprint (W x D)	LITKO KoW Unit Base
Troop	10 (5 wide x 2 deep)	100 x 40mm	Shop 100x40mm
Regiment	20 (5 wide x 4 deep)	100 x 80mm	Shop 100x80mm
Horde	40 (10 wide x 4 deep)	200 x 80mm	Shop 200x80mm
Legion	60 (10 wide x 6 deep)	200 x 120mm	Custom via BaseMaker (also as tray)

Heavy Infantry (HI) — 25mm Formation Sizes

Heavy Infantry (HI) units on 25mm bases also rank up 5 models wide, producing larger formation footprints:

Unit Size	Models	Footprint (W x D)	LITKO KoW Unit Base
Troop	10 (5 wide x 2 deep)	125 x 50mm	Shop 125x50mm
Regiment	20 (5 wide x 4 deep)	125 x 100mm	Shop 125x100mm
Horde	40 (10 wide x 4 deep)	250 x 100mm	Shop 250x100mm
Legion	60 (10 wide x 6 deep)	250 x 150mm	Custom via BaseMaker (also as tray)

Which base size do I use? Check the unit type in your army list entry. If the unit type says Infantry (Inf), use 20mm bases. If it says Heavy Infantry (HI), use 25mm bases. Do not go by faction—many factions contain both Infantry and Heavy Infantry units. The unit profile in the rulebook or the Mantic Companion army builder will always list the correct type.

Cavalry (25x50mm Bases)

Standard cavalry models sit on 25x50mm rectangular bases. Cavalry rank up 5 models wide for their formation footprint, with the 50mm dimension running front-to-back.

Unit Size	Models	Footprint (W x D)	LITKO KoW Unit Base
Troop	5 (5 wide x 1 deep)	125 x 50mm	Shop 125x50mm
Regiment	10 (5 wide x 2 deep)	125 x 100mm	Shop 125x100mm
Horde	20 (10 wide x 2 deep)	250 x 100mm	Shop 250x100mm

Large Infantry / Monstrous Infantry (40mm Bases)

Large Infantry covers bigger models that tower over standard troops—Ogres, Trolls, Elementals, Werewolves, and similar creatures. Each model sits on a 40x40mm square base. Large Infantry formations rank up 3 models wide.

Unit Size	Models	Footprint (W x D)	LITKO KoW Unit Base
Regiment	3 (3 wide x 1 deep)	120 x 40mm	Shop 120x40mm
Horde	6 (3 wide x 2 deep)	120 x 80mm	Shop 120x80mm

Note: Large Infantry does not have Troop or Legion options. The smallest formation is a Regiment of 3, and the largest is a Horde of 6.

Large Cavalry / Monstrous Cavalry (50mm Bases)

Large Cavalry includes mounted monsters and oversized mounts—Drakon Riders, Fleabag Riders on large mounts, and similar heavy hitters. Each model sits on a 50x50mm square base. Like Large Infantry, these formations rank up 3 wide.

Unit Size	Models	Footprint (W x D)	LITKO KoW Unit Base
Regiment	3 (3 wide x 1 deep)	150 x 50mm	Shop 150x50mm
Horde	6 (3 wide x 2 deep)	150 x 100mm	Shop 150x100mm
Legion	12 (6 wide x 2 deep)	300 x 100mm	Custom via BaseMaker

Chariots (50x100mm Bases)

Chariots use 50x100mm rectangular bases with the 100mm dimension running front-to-back. Chariot formations are among the widest in the game.

Unit Size	Models	Footprint (W x D)	LITKO KoW Unit Base
Troop	1 (or 2 side-by-side)	100 x 100mm	Shop 100mm Square
Regiment	3	150 x 100mm	Custom via BaseMaker (also as tray)
Horde	6	200 x 100mm	Custom via BaseMaker (also as tray)

Monsters, Heroes & War Engines

Monsters, heroes, and war engines are typically individual models rather than ranked formations. Their base size is determined by the model itself rather than a formation grid.

Unit Type	Typical Base	Notes	Shop at LITKO
Infantry Hero	20mm or 25mm square (3rd Ed) / 40mm or 50mm (4th Ed)	4th Edition moved all infantry heroes to larger bases. Mantic sells adapter rings for 20mm-to-40mm conversion.	Shop 40mm Bases
Cavalry Hero	25x50mm (3rd Ed) / 40mm or 50mm (4th Ed)	Same 4th Edition change applies to mounted heroes.	Shop 50mm Bases
Monster	50x50mm square	Dragons, Greater Elementals, and similar large creatures. Use model's supplied base.	Shop 50mm Bases
Titan	75x75mm square	Giants and other towering models. Height 6 in the rules. Classified as legacy unit type in 4th Ed but base sizes remain valid.	Custom via BaseMaker
War Engine	Varies—use supplied base	Catapults, ballistae, cannons. War Engines maintain a 50mm arc of fire regardless of base size.	Custom via BaseMaker

Browse All Miniature Bases

Multi-Basing: The Heart of Kings of War

If there is one thing that sets Kings of War apart from every other rank-and-file game, it is multi-basing. In KoW, the only thing that matters for gameplay is the unit's footprint—the overall dimensions of the formation base. Individual model positions within that footprint are irrelevant. There are no casualty removals. A unit either exists at full strength or it is destroyed.

This opens up extraordinary hobby opportunities. Instead of gluing 40 identical models to individual bases and cramming them into a movement tray, you can mount 20–30 models on a single horde-sized base and fill the remaining space with scenic terrain, rubble, spell effects, or dynamic posing. The result is a miniature diorama that moves as one piece on the tabletop.

Why Multi-Basing Works

• No casualty removal. Kings of War uses a Nerve mechanic instead of removing individual models. Your unit stays at full visual impact until it routs.
• Fewer models needed. You can use fewer models than the "full" count as long as the base footprint is correct. A horde of 40 infantry can be represented with 25–30 models if they fill the space convincingly.
• Faster setup and gameplay. Moving one base instead of repositioning 40 individual models on a tray speeds up every turn significantly.
• Diorama-quality armies. The extra space on a multi-base lets you create scenic bases that tell a story—a unit charging through ruins, wading across a stream, or holding a defensive line.

Multi-Base Dimensions at a Glance

Here is a combined reference showing formation footprints for all standard unit types:

Unit Type	Troop	Regiment	Horde	Legion
Infantry (Inf, 20mm)	100 x 40mm	100 x 80mm	200 x 80mm	200 x 120mm
Heavy Infantry (HI, 25mm)	125 x 50mm	125 x 100mm	250 x 100mm	250 x 150mm
Cavalry (25x50mm)	125 x 50mm	125 x 100mm	250 x 100mm	—
Large Infantry (40mm)	—	120 x 40mm	120 x 80mm	—
Large Cavalry (50mm)	—	150 x 50mm	150 x 100mm	300 x 100mm
Chariots (50x100mm)	100 x 100mm	150 x 100mm	200 x 100mm	—

LITKO KoW Unit Bases

LITKO manufactures single-piece plywood unit bases in every standard Kings of War formation size. These are not movement trays with individual slots—they are solid flat bases designed for multi-basing. Glue your models directly to the base, add scenic materials, and you have a finished unit ready for the table.

Each LITKO KoW unit base includes a small notch in the leading edge to help identify the front of the unit, regardless of how your models are posed.

LITKO Movement Trays

If you prefer to keep your models on individual bases (for flexibility across multiple game systems), LITKO makes movement trays with cutouts sized for 20mm, 25mm, 40mm, and 50mm square bases, as well as 25x50mm cavalry bases. Move your entire regiment as one piece while keeping the option to pop models out for skirmish games like Vanguard.

LITKO movement trays are available with magnet-ready options—flex steel bottoms that pair with magnetic sheet in your carrying case for secure transport.

Kings of War 4th Edition Base Changes

Kings of War 4th Edition launched in December 2025 and introduced several basing changes. If you are starting a new army or updating an existing one, these are the key differences from 3rd Edition:

Change	Details
Heroes on Larger Bases	All Infantry, Heavy Infantry, and Cavalry heroes now use 40mm or 50mm bases instead of matching their unit type. This gives heroes a larger battlefield presence. Titan heroes remain on their existing larger bases.
Heavy Infantry & Titans Reclassified	Heavy Infantry and Titans are now considered "legacy" unit types. Their base sizes remain valid for existing armies, but new units are categorized under the standard types (Infantry, Large Infantry, Monster). Existing Heavy Infantry armies can continue to use their current bases.
Large Infantry/Cavalry Progression	Large Infantry and Large Cavalry now follow a standard Troop/Regiment progression rather than the old Regiment/Horde system. Check your 4th Edition army list for exact unit sizes available.
Legions Restructured	Legions are no longer a general unit size. They exist as upgrades through certain Commander units. This may affect your multi-base purchases for the largest formation sizes.

Transition tip: Mantic sells resin base adapter rings to convert 20mm infantry heroes to 40mm bases without rebasing. LITKO also offers 40mm and 50mm square bases in both plywood and clear acrylic if you prefer to rebase cleanly.

Kings of War vs. The Old World: Base Size Comparison

Many players move between Kings of War and Warhammer: The Old World, or bring their old Warhammer Fantasy Battles collections to both systems. The base sizes overlap significantly but are not identical. Here is a comparison to help you plan an army that works for both games.

Unit Category	Kings of War	The Old World	Compatible?
Standard Infantry	20x20mm (Inf) or 25x25mm (HI)	25x25mm	KoW Heavy Infantry (25mm) works in both. KoW Infantry (20mm) needs rebasing or adapters for The Old World.
Cavalry	25x50mm	30x60mm	Not directly compatible. The Old World uses larger cavalry bases. Use adapters or maintain separate bases.
Monstrous Infantry	40x40mm	40x40mm	Identical. Ogres, Trolls, and similar models work in both games without changes.
Monstrous Cavalry	50x50mm	50x50mm or 50x75mm	50mm square models work in both. Some Old World monstrous cavalry uses 50x75mm—check your specific unit.
Chariots	50x100mm	50x100mm	Identical. Chariots transfer between systems without changes.

Bottom line: If you want a collection that works in both Kings of War and The Old World, use 25mm square bases for Heavy Infantry and 40mm square bases for large infantry. Cavalry is the main friction point—KoW uses 25x50mm while The Old World uses 30x60mm. LITKO base adapter trays can bridge the gap so you do not need to rebase models.

For a complete breakdown of The Old World basing, see our Warhammer Base Sizes Guide.

Choosing a Base Material

Base material matters more for multi-basing than for individual models, because a horde-sized base (200x80mm or larger) needs to be flat, rigid, and paintable. Here is what LITKO offers:

Material	Best For	Characteristics
Plywood	Multi-basing, scenic work, texture and painting	The go-to choice for KoW multi-bases. Easy to prime, paint, flock, and sculpt onto. Warp-resistant microplywood in 3mm thickness. LITKO's KoW-specific unit bases are all plywood.
Clear Acrylic	Individual bases, gaming mats, clean display	Transparent, lets your game mat show through. Clean, modern look. Available in 1.5mm and 3mm. Best for individual bases rather than multi-bases (harder to scenic).
Magnetic / Flex Steel	Transport, magnetized army cases	LITKO offers peel-and-stick magnetic base bottoms and flexible steel bottoms that pair with magnetic sheets in your carry case. Essential for transporting large multi-bases safely.

All LITKO bases are precision laser-cut in the USA. For Kings of War, this precision matters—when your regiment base needs to be exactly 100x80mm to fit next to your allied units without gaps, laser-cut accuracy eliminates the guesswork of hand-cut MDF or foam board.

Need a Custom Size? Use LITKO BaseMaker

Playing a variant army, running a homebrew scenario, or converting units that need a non-standard footprint? The LITKO BaseMaker tool lets you specify any shape (circle, square, rectangle, oval), any size, and choose from over 25 colors of acrylic or plywood. It is also the best way to get legion-sized bases or unusual chariot formation bases that are not stocked as standard products.

Build Custom Bases with BaseMaker

New to custom bases? Our companion guide walks through how to order custom unit bases — what BaseMaker can produce, choosing a material, exact sizing, and ordering in volume tiers.

Frequently Asked Questions

Can I use my old Warhammer Fantasy models in Kings of War?

Yes. Kings of War was designed to accommodate existing fantasy miniature collections. If your models are on 25mm square bases, they work for KoW Heavy Infantry units. If they are on 20mm bases, they work for KoW Infantry units. 25x50mm cavalry bases carry straight over. Models on 40mm bases slot directly into Large Infantry. The only adjustment you may need is rebasing heroes if you are playing 4th Edition (heroes now use 40mm or 50mm bases).

What are the regiment base dimensions for 20mm Infantry (Inf)?

A 20mm Infantry (Inf) regiment is 20 models ranked 5 across and 4 deep, creating a 100 x 80mm footprint. That is the dimension of the multi-base or movement tray you need. LITKO sells this as a ready-made KoW unit base.

Do I need the full model count on a multi-base?

No. Kings of War explicitly allows flexible model counts on multi-bases. A horde "of 40" can be represented by 25–30 models with scenic filler. What matters is the footprint dimension, not the exact model count. Most tournament organizers ask that the base "looks like" the appropriate unit size, but they do not count individual models.

What is the difference between a unit base and a movement tray?

A unit base (multi-base) is a single flat piece of material. You glue models directly to it and scenify the surface. This is the most common approach in Kings of War. A movement tray has individual cutouts or lips that hold separately-based models. Movement trays let you remove individual models for other game systems. Both are legal in KoW—it is a hobby preference.

Can I play both Kings of War and The Old World with the same army?

Mostly. Infantry on 25mm square bases and large infantry on 40mm bases are directly compatible between both systems. Cavalry is the sticking point—KoW uses 25x50mm while The Old World uses 30x60mm. The solution is to either keep cavalry on individual bases with game-specific movement trays, or use LITKO base adapter trays to bridge the size difference. See our Warhammer Base Sizes Guide for full Old World details.

What changed for heroes in Kings of War 4th Edition?

In 3rd Edition, infantry heroes used the same base as their unit type (20mm or 25mm). In 4th Edition, all infantry, heavy infantry, and cavalry heroes now use 40mm or 50mm bases. This gives heroes a more commanding presence on the battlefield. Mantic sells resin adapter rings for a quick conversion, and LITKO stocks 40mm and 50mm square bases in multiple materials.

Does base material matter for tournaments?

Tournament organizers care about base dimensions, not material. Clear acrylic, plywood, MDF, and 3D-printed bases are all acceptable as long as they are the correct size. LITKO bases are precision laser-cut to exact millimeter dimensions, which eliminates the sizing inconsistencies you sometimes see with hand-cut alternatives.

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
• Age of Sigmar Base Sizes Guide — All factions, 4th Edition quick-reference chart
• 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