9x18 is about ex size of a a single garage
Be carful they look big before end thing go in
If you look at unit depths no greater than 800mm it will leave enough room to walk around a motorbike
I always manage to scrounge an old living room carpet , get a beer fridge , joist mounted overhead multi socket in front of the work-bench to there are no cables to trip over , radio , comfy chair …ooh , that is my living room !
Unless you have the money to clad the end wall in snapon tool boxes… I have an account with Howdens and get a hefty discount on kitchen carcasses and doors. Perhaps something in a high gloss black?
I also have a nice portable spray unit so walls would take no time to coat up. Wall mounted flat screen for motogp reruns while you work? Suspended ceiling with downlighters and speakers recessed into it