-
coal cellar into something more useful but don't think I've got the height to start with
Idk what your layout is, but what you can potentially do is dig down in the middle to give you extra head height - if that makes sense? Sort of like a channel.
Often you'll have wall storage or maybe a work bench, or tumble dryer, etc. so you don't need "real" standing height in those bits - just getting in/out and moving around to get to those bits.
It's very situational, but worth thinking about.
I absolutely can't believe i was considering DIYing my cellar - utter madness.
Builders are on day two of taking out the existing screed and hardcore, looks like I'm going to gain about a foot in head height which will be a massive unexpected bonus.