Calculating finished size

Clay shrinks at every stage of the making process so you may need to be able to calculate the final size.

You can find information about the shrinkage of a particular clay by visiting the clay supplier’s website – sometimes it’s even on the pack. Once you have the shrinkage rate, use the calculators here:

You could also use rulers that account for shrinkage when making. You can find a selection of rulers here:

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