What Size Bases for Skirmish Miniatures?

A 3 mm difference in base diameter can change whether a fighter fits behind a barricade, reaches an objective, or gets tagged in melee. If you are asking what size bases for skirmish miniatures, the first answer is simple: use the base size required by the game you intend to play. The more useful answer is that base size is part of a miniature's game profile, not just a platform for paint and scenery.

For casual narrative games, you may have some flexibility. For organized play, matched play, or any game with tight movement and engagement rules, the correct footprint matters as much as the model itself. Choose the rule-legal base first, then make it look like part of the battlefield.

Start With the Game's Required Base Size

Always check the current rulebook, official army builder, tournament pack, or the base supplied with the original miniature. Game publishers sometimes revise base standards when a kit is updated, and community advice can lag behind those changes. A model sold years ago on a 25 mm base may now be expected on 28 mm or 32 mm, depending on the system.

If the game explicitly states a base size, that ends the debate. Do not select a larger base because it gives you more room for a scenic build, and do not use a smaller one because it makes hiding easier. Both choices alter the miniature's footprint and can create an unintended in-game advantage.

When rules do not specify a size, use the base most common to comparable models in that game. Match the role, body size, and battlefield function rather than relying on overall model height. A lean character with a tall banner may still belong on a 25 mm or 28 mm base, while a compact, heavily armored brute may need a 32 mm base.

Common Skirmish Base Sizes and Their Uses

Most human-scale skirmish miniatures fall between 25 mm and 32 mm round bases. Those few millimeters are meaningful on a dense table full of doors, ruins, ladders, and objective markers.

25 mm round bases

A 25 mm base remains a common choice for ordinary infantry, lightly armored fighters, cultists, goblins, small troops, and older miniature ranges. It creates a compact footprint, which is useful in games where squads pack closely together or terrain is built around narrow spaces.

The trade-off is limited room for scenic basing. A dramatic running pose, wide weapon, or hanging cloak can look crowded. Keep flock, rocks, and debris low near the edge so the model can stand beside other miniatures without snagging them.

28 mm and 30 mm round bases

These sizes are popular with boutique skirmish games and 3D-printed miniature ranges because they give a little more space for dynamic poses without making every fighter feel oversized. A 28 mm base is especially useful for human-scale models with broad stances, rifles, shields, or capes.

Do not assume 28 mm and 30 mm are interchangeable, though. They may look close in a display case, but they create different engagement distances and placement options on the table. If a game calls for one, use that exact diameter.

32 mm round bases

A 32 mm base is often used for elite infantry, powered armor, large humanoids, heavily armored fantasy warriors, and character models. It gives the sculpt room to breathe and supports more elaborate basing, including rubble, broken machinery, skulls, roots, or low elevation changes.

The downside is a larger footprint. Models are easier to see, harder to fit into tight ruins, and may reach or block space differently under rules that measure from the base. A 32 mm base should represent the intended unit type, not an upgrade chosen for appearance alone.

40 mm, 50 mm, and larger bases

These sizes suit brutes, cavalry-like monsters, drones, walkers, large characters, and objective-scale creatures. A 40 mm base is common for a single tough combatant, while 50 mm and 60 mm bases are more often used for monsters, heavy weapons, or larger battlefield pieces.

At this scale, base shape can matter as much as size. Some models use oval, rectangular, clear flight, or custom-shaped bases. Follow the game's official footprint where possible. If the model has no published standard, agree on the base with your opponent before the game starts.

Why Base Size Changes Gameplay

The base is usually the point from which a skirmish game measures movement, weapon range, line of sight, charging distance, and melee engagement. Even when a system measures from a model's body, the base still affects where that body can physically stand.

A larger base can make an objective easier to contest, occupy more space in a doorway, and extend the model's reach in games that measure base-to-base distances. A smaller base can let a fighter slip through gaps, stay farther from enemies, and tuck behind cover. Neither is inherently wrong when it is the official size. Problems begin when a miniature is based to gain an advantage.

Base size also affects how a board feels. Dense sci-fi terrain built for 25 mm fighters can become frustrating when every model is on 32 mm bases. Conversely, wide-open terrain can make smaller models feel exposed and disconnected from the battlefield. When building a board, test corridors, walkways, doorways, and objective spaces with the bases your group actually uses.

Measure the Base, Not the Miniature

Base sizes are normally described by their diameter at the bottom contact edge, not by the top surface. Sloped bases can be narrower across the top than at the bottom, so measuring the visible upper rim may give you the wrong result.

Use a ruler or caliper across the widest point of the base's underside. For oval bases, measure both the length and width. If you are replacing a missing base, check that the replacement matches both dimensions and profile closely enough to sit properly beside the rest of the warband.

Base rims deserve attention, too. A thick beveled rim gives you a clean area for a faction color, unit markings, or a painted edge that visually ties the force together. A thinner or flat rim can look more realistic on a display piece, but it may be less practical for handling during a game.

Choosing Bases for Unofficial, Proxy, and RPG Models

Not every miniature comes with a fixed game identity. This is common with 3D-printed character models, alternate sculpts, kitbashed fighters, and RPG miniatures that later join a skirmish warband. In those cases, choose the base size of the model you are representing, not the size that merely looks best.

For example, if a printed sci-fi mercenary is standing in for a standard human infantry fighter, base it like that fighter even if the sculpt could comfortably fit on a larger base. If it represents a bulky elite warrior, match the elite warrior's official footprint. Consistency makes the model easier for opponents to read at a glance.

RPGs are usually more forgiving. A typical medium humanoid often uses a 1-inch square space on a grid, which roughly corresponds to a 25 mm round base. Larger creatures should match the grid space or token footprint used by the group. Still, ask the game master before mounting a character on an unusually wide scenic base. A spectacular base is less helpful if it cannot fit into a dungeon corridor.

Scenic Basing Without Creating Problems

A good scenic base supports the miniature's story while keeping it practical for play. The safest approach is to build upward toward the center and keep the outer edge clear. Low rubble, sand, texture paste, shell casings, tufts, and small stones add atmosphere without changing the model's usable footprint.

Avoid terrain pieces that overhang the rim, especially on melee models. Overhang catches on neighboring bases, makes packed combat awkward, and can create arguments about where a miniature truly ends. Tall rocks and ruined walls can also make a model unstable or prevent it from fitting under terrain features.

If you want a dramatic display effect, reserve it for a character, monster, or objective marker that will not need to stand shoulder-to-shoulder with a full squad. Magnetizing a miniature to a simple game base and a larger display plinth is another practical option.

A Practical Basing Check Before You Paint

Before committing to texture and paint, dry-fit the miniature on its intended base. Check the pose from above, make sure weapons and limbs stay within the footprint where practical, and see whether the model stands securely. Then place it beside a few other models and inside the terrain you expect to use.

For replacement and custom bases, match the diameter, height, and shape used across the warband. TerrainForgeStudio miniatures, terrain, and accessories are easiest to integrate into a gaming force when the base standard is decided before assembly, rather than corrected after a finished paint job.

The best base size is the one that keeps your miniature legal, readable, stable, and enjoyable to use. Once that foundation is right, the cracked concrete, alien soil, dungeon flagstones, or battlefield debris can do what it should: make every game look better without getting in the way.