Waste location in a shower tray

[galegp]

This could be a very silly question but here I go….
I have a 700 (width) x800 (depth) space to fit a shower tray but from the looks of it (google) this is not a standard size. I’ve found 800x700 though so my question now is…
Could I use a 800x700 and just turn it to fit the 700x800 space? Of course this will mean that the waste will need to be moved but can this actually be done? And is it a good idea to do it?
Thanks for your help.

 

[denso13]

Depends on floor (concrete/timber) on how easy it is, but yes, in principle you can move the waste to wherever you like.