| Small plate | About 6 in (15 cm) across | Round | Usually ceramic with a polymer coating made for sublimation | Choose a press or interchangeable platen designed for the blank’s diameter. | Measure the usable pressing area and confirm that the platen supports the plate’s rim and center. |
| Medium plate | About 8 in (20 cm) across | Round | Commonly coated ceramic; decorative blanks may have different finishes | Requires a matching round platen and even pressure across the image area. | Check the platen’s stated size range, not only the machine’s overall dimensions. |
| Large plate | About 10–12 in (25–30 cm) across | Round | Often polymer-coated ceramic for sublimation | Needs a platen large enough for the blank and a press with suitable pressure adjustment. | Verify the maximum blank diameter and allow room for the plate’s raised or curved rim. |
| Square plate | Sizes vary; measure the full width and height | Square, sometimes with rounded corners | May be coated ceramic or another heat-transfer-compatible blank | Best suited to a square platen or a press whose platen fully covers the printable area. | Check corner clearance and whether the press applies consistent pressure near each edge. |
| Oval plate | Sizes vary; record both the long and short axes | Oval | May be polymer-coated ceramic | Usually requires a matching oval platen or a compatible shaped insert. | Confirm the platen matches the blank’s outline; a round platen may not press the ends evenly. |
| Uncoated ceramic plate | Available in multiple sizes and shapes | Round, square, or oval | Bare ceramic without a sublimation-receptive coating | A plate press alone does not make an uncoated surface suitable for standard sublimation. | Use a blank specifically prepared for the intended transfer method and follow its instructions. |
| Metal or glass plate blank | Sizes and shapes vary by product | Round or other shapes | Must have a compatible heat-transfer coating; untreated metal or glass is not equivalent | Use only with a press, platen, and transfer process approved for that blank. | Check the blank maker’s temperature, time, pressure, and handling guidance before pressing. |