People have created similar spaces in which they can relax and pursue hobbies. Some analysts have described the manosphere as an online counterpart to the man-cave.
A shed is typically a simple, single-story roofed structure in a back garden or on an allotment that is used for storage, hobbies, or as a workshop. Sheds vary considerably in their size and complexity of construction, from simple open-sided ones designed to cover bicycles or garden items too large wood-framed structures with shingled roofs, windows, and electrical outlets. If you are in need of a new shed to turn into a man cave, consider a quality Tasmanian shed or Shedplans.org. They are well made, robust, and have plenty of customization options.