Hi Mark
The best advice that I can give is not to repeat the mistakes that I made thirty years ago. Now that My shed is full of treasures its a major removal to clear it to fix basic problems:
- the concrete floor is neither level nor smooth - needs professional coat of smoothe level concrete, or yellow tongue.
- Varnished pine VJ and pink primer bricks are light absorbers - should paint white or similar,
- No insulation,
- Insufficient storage.
It is a real pain to work on a sh*t floor - things wobble, cannot easily drag benches, etc. So fix now, or never.
Others have talked about insulation - here's a good reference:
Insulation | YourHome
As others have suggested, regard the roller door as an extension of your lead-in, tail-out space from table saw, etc. Plan accordingly.
If camping/household storage must go in shed, then put on shelves 2.1 metres above floor, and higher. Useful stuff can go below.
If you line the shed, the most versatile and amongst the most cost effective is yellow tongue flooring. You can hang anything on it.
Wish I had thought properly, earlier.
Graeme