My space is an unused small bedroom. I have filled the closet with the cubical storage units and ventilated baskets.
My sewing tables are precut wood that I covered in foam then duck cloth. I attached a set of banquet table legs and then trimmed them to a comfortable height using a tube cutter (really easy tool to use). The tables work great, really sturdy and they cut down on vibrations.
I have a lot of natural light during the day, and lots of task lighting for the evenings.
this is my "hole" as the guys (husband and grown sons) call it where I spend most of my evenings.