To what thickness should I roll out icing for covering a cake?

I had a look at Google where values range from 1mm to 5mm. 5mm strikes me as a bit thick; and the last time I tried, I had some trouble to roll it to anything much thinner than 2mm. Any hints?

1 Answer 1


For each of my (now 16) birthdays, I've had a cake decorated by my mum, with ready to roll icing:

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I just asked her. She said:

I normally go for 4 to 5mm. Any less and it is liable to rip. 3 is the thinnest I can get it.

I think that 5mm is a reasonable thickness (I like icing) but if you can get it to 3, go for that. 2 or less is stingy!

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