Reply To: What size should my workshop be?

3 m X 3 m is nice, I would not reduce it under 3 m X 2 m. You need some room to manipulate boards, store the tools, store some boards and maybe keep a band-saw.
For board manipulation, it is also depending on the ceiling height. Can you turn a 2.5 m board?
If you make some furniture, you might have to assemble/glue it outside of this workshop.