Stone thickness is really a thermal-mass question. Thicker decks usually store more heat and can recover better between pizzas, but they also take longer to warm up.
What this filter means
This filter sets the minimum thickness you want from the baking surface. It helps the finder favor ovens that better support repeated baking and stronger bottom heat.
Why it matters
- Thicker stones usually recover better after each bake.
- Thin stones are often faster to preheat, but can lose heat quickly.
- The importance goes up when you bake multiple pizzas in a row.
General guidance
- Around 10 mm: workable for lighter home use and smaller sessions.
- Around 15 mm: a strong middle ground for many home users.
- 18 mm and above: more useful when you want steadier performance across several pizzas.
Pros and cons
Thinner stones
Pros:
- Faster preheat
- Often lighter ovens
- Good for casual use
Cons:
- Can cool down faster
- Less forgiving in back-to-back baking
Thicker stones
Pros:
- Better heat reserve
- More stable bottoms
- Better for multiple pizzas
Cons:
- Slower to preheat
- More weight
Bottom line
If you mostly bake one or two pizzas, you do not need to obsess over maximum thickness. If you want stronger repeatability or family-size sessions, a thicker stone becomes much more valuable.