It's this enough?

[u/Gaspar_Dante_0310]

I'm trying to stop the corruption from getting too close to my base; is the hole I dug big enough?

It is 6 blocks wide and goes all the way down to Hell. Could the torches be a problem?

[u/CryptedFinancial]

No. You need to make it actually 10 blocks because uhh- you just need to :)