Cold frame advice please ...

I'm making a cold frame - a little late I know - and would appreciate advice as to what to site it on. I won't be moving it around.
Can I place it facing west to east? I've read they're best facing south but I could only do this if I put it at the front of the house on an already crowded patio (and the pane I've been given for the top measures 30 ins square so it would take up quite a bit of room there).
I am/was intending to use it to over-winter some cuttings and to get myself into gear with seeds next year.
Can I place it facing west to east? I've read they're best facing south but I could only do this if I put it at the front of the house on an already crowded patio (and the pane I've been given for the top measures 30 ins square so it would take up quite a bit of room there).
I am/was intending to use it to over-winter some cuttings and to get myself into gear with seeds next year.
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The base can be anything - gravel is good, but if you have paving that's also fine
It largely depends how you're going to use it. If it's just to shelter small plants from the worst weather for example, it won't matter too much.