Hi Everyone,

I've got a monoblock chiller unit and I'd like to build a walk-in chiller for storing food, mainly fish products.
The space is a bit tricky, its located in the basement and the ceiling is pretty low.
What I was thinking about to build one of those walk-ins made of PU panels with camlock. The question is where can I buy those in London? Probably I will need special sizes because of the low ceiling, also a door to fit.
Unfortunately I don't really know anything about how its made, are those panels available in custom sizes? Do I have to make a sketch of it and then they manufacture it?
Any ideas, suggestions, recommendations about where should I start, which company is manufacturing these panels..etc. I have googled it but found only installers or wholesales. I would like to build it by my own.

Thanks in advance