How to Choose the Right Brush Size for Miniature Painting

Quick answer

Match the brush to the job, not to a single favorite size. Keep one larger round for basecoats and washes, one mid-size round for general work, and one super-fine detail brush for eyes, freehand, and fine lines. If you only buy two brushes, make them a size 1 or 2 round and a true detail brush, then add a dedicated drybrush later. This miniature brush size guide explains the trade-offs so you can build a small, useful set instead of a drawer full of duplicates.

Most painting problems blamed on skill are actually brush-size problems. A size 0 round loaded with basecoat will dry before it covers a shoulder pad, while a size 3 round will flood the eye socket you are trying to dot. The fix is not one perfect brush but a small set where each brush has a clear job.

This guide gives you concrete decision rules for choosing brush sizes, plus honest trade-offs about tip quality, belly capacity, and when a cheap detail brush beats an expensive all-rounder. It also covers how drybrushes and detail brushes differ, so you stop borrowing your best sable for abrasive drybrush work.

Start with the job, then pick the size

Brush size numbers are not standardized across brands, so treat them as a rough ranking rather than a measurement. What matters is the combination of tip fineness and belly capacity. A large belly holds more paint and keeps it flowing, which is why a bigger round is faster for basecoats and large panels. A fine tip lets you place paint precisely, which matters for eyes, lenses, and freehand.

For most 28-32mm miniatures, a size 1 or 2 round covers the majority of work: basecoats on limbs, armor panels, and cloaks. Step down to a size 0 or a dedicated detail brush for faces, straps, and edge highlights. Step up to a size 3 or 4 round only when you are covering large flat areas like vehicle hulls or monster wings.

• Basecoats and large areas: size 2-4 round with a full belly.
• General detail and layering: size 0-1 round with a sharp tip.
• Eyes, lenses, freehand, and fine lines: a dedicated super-fine detail brush.
• Drybrushing: a separate flat or dedicated drybrush, never your best detail brush.

How to read a brush size chart without getting fooled

A brush size chart is useful for comparing within one brand, not across brands. Two size 0 rounds from different makers can differ noticeably in tip length and belly width. When you look at a chart, check the bristle length and width, not just the number. A longer tip holds more paint but flexes more, which makes fine control harder. A shorter, stiffer tip gives more control but dries out faster.

Synthetic bristles tend to hold a sharper spring and resist splaying, which suits detail work and acrylics. Natural hair often has a softer feel and a finer point, but it wears faster with abrasive techniques. Neither is universally better; pick based on the job and how you clean your brushes.

• Compare bristle length and width, not just the size number.
• A longer tip means more flow but less precision.
• A shorter, stiffer tip means more control but more frequent reloading.

Detail brush vs drybrush: different tools, different jobs

A detail brush is built for precision: a fine point, a controlled belly, and enough spring to return to a sharp tip after each stroke. You use it for eyes, edge highlights, freehand, and tiny trim. A drybrush is built for abrasion: stiff bristles, a flat or rounded profile, and enough toughness to survive being dragged across textured surfaces with almost no moisture.

The drybrush vs detail brush question is really about protecting your investment. Using a fine detail brush for drybrushing will splay and curl the tip quickly, and no amount of conditioning will fully restore it. Keep a cheap, stiff brush for drybrushing and reserve your detail brush for controlled work.

• Never drybrush with your best detail brush.
• A dedicated drybrush can be a cheaper, stiffer brush you do not mind wearing out.
• If you only paint clean, smooth armor, you may not need a drybrush at all.

Build a small wargaming brush selection that covers everything

A practical wargaming brush selection is three to five brushes, not fifteen. Start with one mid-size round for general work, one larger round for basecoats and washes, and one super-fine detail brush. Add a dedicated drybrush if you use that technique, and a flat brush if you paint vehicles or large panels. Replace brushes when they stop holding a point, not on a schedule.

If you are buying a miniature painting brush set, check what sizes are actually included. Many sets pad the count with duplicates or oversized brushes you will rarely use. A set with a clear size 0-2 range plus one true detail brush is more useful than a ten-brush set full of near-identical rounds.

• Buy the detail brush separately if the set's smallest brush is not truly fine.
• A flat brush is optional unless you paint large flat surfaces.
• Two good brushes you actually use beat ten you never touch.

Decision rules for choosing a brush size

• If you are covering a large area: Use a size 2-4 round with a full belly to hold enough paint and avoid streaks. A bigger brush is faster and smoother on flat panels; save the fine tip for later.
• If you are painting eyes, lenses, or freehand: Use a dedicated super-fine detail brush, not a worn size 0 round. A true detail brush is the difference between a clean dot and a smeared socket.
• If you are drybrushing: Use a separate stiff drybrush and keep your detail brush away from abrasive work. Protecting your fine tip is cheaper than replacing it every few weeks.
• If you are buying a set: Check that the set includes a genuinely fine detail brush and a usable mid-size round, not just duplicate sizes. A focused three-brush set beats a padded ten-brush set.

Products that fit these rules

• Hobby: Super Detail Brush: This super fine hobby brush is for the smallest of paint jobs, like dotting the eyes or painting fine lines. The Super Detail brush comes with the characteristic red handle as do all our Hobby Brushes. This is the brush to reach for when a size 0 round is still too broad, such as eyes, lenses, and fine freehand lines.
• Warpaints Air: Moon Dust: All Warpaints Air are pre-mixed and airbrush-ready right out of the bottle and made from ultra-filtered vibrant pigment. The Warpaints Air range has been developed in a unique and innovative Triad System - each matching Warpaints Acrylics colour has a corresponding Base and Highlight colour. If you airbrush your basecoats and zenithal shading, you can reserve your detail brushes for precision work instead of wearing them out on large coverage.
• Warpaints Air Metallics: True Copper: Airbrush-ready paints right from the bottle. No thinning required. Pre-loaded Mixing Balls. Developed in a Colour Triad System. Metallic coverage is often uneven with a brush; airbrushing it keeps your fine detail brush free for trim and edge work.

Who should follow this approach

Best for

• New painters building a first practical brush set
• Wargamers painting squads who need speed and precision in the same session
• Hobbyists who keep ruining detail brushes on drybrushing and want a clearer system

Not for

• Display painters who already work with a curated set of kolinsky sable brushes and know their preferred sizes
• Airbrush-only painters who rarely pick up a hand brush

Choose brushes by the job in front of you, not by a single favorite size. A mid-size round, a larger round, and one true detail brush will handle most miniature painting, and keeping a separate drybrush protects the tip you rely on. Start with those three, add a flat only if you paint large surfaces, and replace brushes when they stop holding a point.