A custom medal is a made-to-order piece of award or recognition metalwork: the buyer commissions a design, the maker cuts a mould or a stamping die from that design, and each unit is produced in the chosen base metal, thickness, decoration and finish. It is not a generic stock trophy with a name plate added afterwards; the shape, lettering, relief and color all belong to the commissioning event or organization. This article defines the concept, explains how the main production routes differ, and sets out the physical limits — diameter, thickness, weight and ribbon — that decide whether a design can actually be manufactured.
The concept and scope of a custom medal
Three things together separate a custom medal from other recognition objects:
- A bespoke die or mould. The design is tooled once, then used to produce a run. The tooling is a fixed cost separate from the per-unit cost, which is why small orders carry a disproportionate tooling share.
- A metal body. The medal itself is struck or cast metal — typically zinc alloy, brass, iron, aluminum or stainless steel — as opposed to acrylic, glass or resin awards.
- A wear-or-display format. Most custom medals are finished with a ribbon or lanyard so they can be worn, but commemorative and display pieces in the same format are often supplied without a ribbon attachment at all.
The scope of the term is deliberately wide. Sports finisher medals, school prizes, corporate service awards, military and challenge coins, commemorative pieces and event tokens all sit inside it. What they share is the tooling-plus-metal production logic, not a single look.
How a custom medal is made: casting versus stamping
All custom medals are made from metal, but they are formed in one of two fundamentally different ways, and the choice constrains everything else about the design.
Die casting
In die casting, molten zinc alloy is injected into a steel mould. Typical zinc alloy melts at around 385 °C and flows readily into fine cavities, which is why die casting is the route used for deep three-dimensional relief, complex outlines and cut-outs. The practical floor and ceiling are narrow: manufacturing guidance published by medal producers puts the typical minimum thickness for zinc alloy die casting at about 2 mm and the practical ceiling at roughly 6 mm.
Die striking (stamping)
In die striking, a flat blank is pressed between dies, so the metal must stay thick enough not to deform or tear. Industry guidance suggests brass and iron become difficult to press beyond about 3 mm and 4 mm respectively, while aluminum and stainless steel work from around 2 mm upward. Struck medals tend to carry crisper flat detail and a heavier hand-feel for their size; brass in particular is chosen for its weight and warm tone.
Base metals and what each one implies
| Base metal | Typical forming method | Practical thickness band | What it is chosen for |
|---|---|---|---|
| Zinc alloy | Die casting | ~2–6 mm | Best balance of fine detail, deep relief and cut-out shapes; the default for most custom work |
| Brass | Striking/stamping | ~3 mm and up | Heavier, warmer hand-feel and premium mass at the same diameter |
| Iron | Striking/stamping | ~3–4 mm | Lower material cost; softer edges and a shorter-lived finish |
| Aluminum | Striking | ~2 mm and up | Low weight, well suited to anodised color |
| Stainless steel | Striking | ~2 mm and up | Corrosion resistance and wear in wet or marine settings |
Density differences matter more than buyers expect. Zinc alloy is about 6.7 g/cm³, brass about 8.9 and iron about 7.8, so at identical dimensions a brass medal weighs roughly a third more than a zinc one — and that difference shows up on the material line of a quotation as well as in the hand.
Decoration: what the surface does
The metal body is only half the object. The visible finish comes from plating plus decoration:
- Plating supplies the color and reflectivity of the metal itself — gold, silver, antique or other tones — and, on thicker medals, also covers the visible side wall, which is why edge finish is worth specifying on 3 mm and thicker pieces.
- Enamel fills recessed areas with color. Hard enamel is polished flat to the metal surface for a smooth, uniform look; soft enamel leaves the color recessed so the metal outline stands proud. Hard enamel requires a minimum fill width, and producers commonly quote around 0.3 mm for that limit.
- Relief and engraving work in the opposite direction, letting the metal itself carry the design through raised or cut detail.
The practical consequence: enamel cannot hold detail finer than its fill limit, and plating cannot rescue an under-thickness body. Design detail and process choice move together.
Size, thickness and cost: the constraints that drive decisions
There is no industry-wide standard diameter, but common practice has settled into recognisable bands. The following ranges reflect published producer guidance for zinc alloy die-cast medals:
| Event type | Typical diameter | Typical thickness | Reason for the band |
|---|---|---|---|
| Children's school sport | 40–50 mm | 2–2.5 mm | Light on small necks, lower cost at volume |
| Youth leagues | 50–60 mm | 2–3 mm | Reads clearly in team photos |
| 5K / 10K finisher | 60–70 mm | 2.5–3 mm | Comfortable to wear while still substantial |
| Marathon finisher | 70–80 mm | 3–4 mm | Keepsake weight and larger artwork area |
| Corporate / academic award | 60–75 mm | 3–4 mm | Desk-display piece where weight signals value |
| Commemorative / display | 80–100 mm | 4–6 mm | Detail and readability at viewing distance |
Two rules of thumb follow from this table. First, if a medal needs to feel heavier, the cheaper lever is usually diameter, not thickness: moving from 60 mm to 75 mm adds more perceived mass than adding 1 mm of thickness, and it also gives the artwork more room. Second, thickness has a hard floor set by the process. Below roughly 2 mm, zinc alloy will not fill the mould reliably, producing short shots and weak edges — a saving that is small next to the failure rate it creates.
Cost scales through three channels at once: grams of metal consumed, press or shot cycle time, and the steel cost of a larger cavity. Producer price bands illustrate the shape of the curve — per-unit cost typically rises by about 20–40% moving from the 40–50 mm band to the 60–70 mm band, and by roughly 60–120% moving to 80–100 mm. Because tooling is a fixed cost spread across quantity, that size premium hurts most on small runs.
Ribbons and attachment: the part most often specified wrongly
A medal that hangs badly fails regardless of how good the metal is. Ribbon width should track medal diameter: about 20 mm for 40–65 mm medals, 25–30 mm for 65–80 mm, and 30 mm or more above that. Standard adult ribbon length runs about 860–900 mm, with shorter 800 mm options for children's events so the medal sits at chest height. A useful rule: when diameter increases by more than about 10 mm, step the ribbon width up with it, otherwise a narrow ribbon twists under the extra weight.
Attachment method (welded loop, ring, clip, or stitched and ultrasonically welded ribbon ends) is a separate specification from the ribbon itself and should be confirmed alongside it.
Common misconceptions
- “Thicker always means better.” Past the process ceiling, thickness fights the press or wastes metal. Rigidity and hand-feel are better solved with material choice and diameter.
- “The same artwork works at any size.” Detail scales with the medal. A 4 pt line of text at 70 mm becomes roughly 2.9 pt at 50 mm, below what enamel can hold cleanly. Shrinking a medal means simplifying its artwork.
- “Millimetres and inches are interchangeable.” Factories quote in millimetres; a 2.5 in medal is 63.5 mm, not 60 or 65. Rounding at the brief stage changes the mould, and a cut mould cannot be adjusted later.
- “One size fits a mixed-age event.” Many organizers run two sizes with the same artwork scaled to fit — for example 50 mm for juniors and 65 mm for seniors — accepting a separate tooling charge per size.
What the boundaries of the format are
Custom medals work well for worn awards, keepsakes and display pieces in the 40–100 mm range. Beyond that, weight and tooling cost climb quickly and the object stops being wearable; flat or plaque formats usually serve large display pieces better. At the other end, very small diameters compress artwork below enamel resolution, at which point a pin, coin or token format with a simpler design is the more coherent choice.
Read the definition as a design constraint rather than a catalogue description: a custom medal is a metal object whose detail, thickness and color are jointly limited by the forming process, the decoration method and the ribbon that carries it.