Before sketching out your design, assess the roof you're planning to use - it's important that the building is sturdy ... Line the roof of your shed with a piece of plywood wrapped in waterproof ...
Note: You can build the walls on any flat surface, but the shed platform is ideal. Use chalk lines as a guide. Nail siding to the walls before you stand them up ... to build the roof sections.
The trend of converting tool sheds into cozy lioness lairs took off during the pandemic when people had time for projects and needed space.