# Planning the Foot Ring

Unit: Trimming & Refining
Topic: Cylinder Foot Ring
URL: https://claybook.studio/learn/planning-the-foot-ring/

# Before You Cut Anything

A foot ring is a raised ring on the base of a pot that it sits on. It is not just decorative; it serves several practical functions. Planning the foot ring before you make a single cut prevents costly mistakes.

## Why a Foot Ring?

*   **Kiln safety**: Glaze on the base will weld your pot to the kiln shelf. The foot ring creates a clean, unglazed landing zone that keeps both pot and shelf safe.
*   **Balance & feel**: A good foot ring makes the pot feel planted but not heavy, concentrating contact in a tidy circle instead of a big flat slab.
*   **Aesthetics**: When someone picks up a pot, they almost always flip it over. A well-designed foot is the difference between "student work" and "professional".

## The Anatomy of a Foot Ring

A foot ring has three surfaces:

*   **The foot face**: The flat bottom surface that actually contacts the table.
*   **The outer wall**: The vertical outside surface of the ring.
*   **The inner wall**: The angled or vertical inside surface, leading up to the recessed base interior.

For a cylinder, all three should be clean and clearly defined.

## Deciding on Dimensions

Before picking up any tool, decide:

*   **Width of the ring**: Typically 5–8mm for a mug or cylinder. Narrower looks elegant; wider looks sturdy.
*   **Height of the ring**: Usually 8–12mm. Too low and the glaze will drip onto the kiln shelf anyway.
*   **Diameter**: The foot ring should sit roughly two-thirds of the base width. Check visually or mark with a pencil compass while the wheel spins.

## Design Intent Check
Before cutting, choose your style:
* Narrow, tall foot for lighter visual feel
* Wider, lower foot for grounded stability
* Medium profile for general functional ware

Intentional choices make the finished base look designed, not accidental.

## Down the Rabbit Hole

The foot ring is one of the most scrutinised details in ceramic traditions worldwide; in Japanese [raku ware](https://en.wikipedia.org/wiki/Raku_ware), the foot is often left rough and organic, while Chinese [porcelain](https://en.wikipedia.org/wiki/Porcelain) foot rings are typically precise and refined. The unglazed foot also reveals the clay body itself, making it a useful indicator of whether the piece has reached full [vitrification](https://en.wikipedia.org/wiki/Vitrification) during firing.

## Check your understanding

### Question 1: Why can't you glaze the base of a pot and what does the foot ring have to do with it?

- [ ] A. Glaze on the base makes the pot slide off the shelf
- [x] B. Glaze fuses to the kiln shelf; the unglazed foot ring prevents this
- [ ] C. The base does not need glaze because it is not seen
- [ ] D. The foot ring is just decorative

Tip: Glaze on the base fuses to the kiln shelf when fired. The unglazed foot ring creates a safe boundary that keeps the pot from sticking.

### Question 2: What diameter should a foot ring typically be relative to the base?

- [ ] A. As wide as the base
- [x] B. About two-thirds of the base width
- [ ] C. As small as possible
- [ ] D. Exactly half the base width

Tip: The foot ring diameter is usually about two-thirds of the total base width, giving a stable, proportionate look.

### Question 3: You're trimming a tall mug with a narrow base. Which foot ring choice best balances stability and elegance?

- [ ] A. Very narrow, very tall foot ring
- [ ] B. Very wide, very low foot ring that almost matches the full base
- [x] C. Medium-height foot ring about two-thirds of the base width
- [ ] D. No foot ring at all, just a flat base

Tip: A foot ring about two-thirds of the base width with medium height gives enough contact for stability without looking clunky or spreading all the way to the edge.