How much space should I allocate to the home partition?

I want create a root partition and a home partition. for a 216 GB of secondary storage, how much space should I allocate for the root partition and for the home partition?

This site is for the co-ordination of the Ubuntu project(s), and not support. Sorry.

This sort of question has been asked in the support venues at many times, and we hope the many answers there seems sensible to you.

Many new users experiment with several different partitioning ideas before settling upon a daily-use concept, so backups are important!