Will 5 door hatchskirts fit the coupe? or do I need to be looking for 3 door skirts?
They will only fit if you cut down the top edge to the same shape as the 3dr/coupe ones.
It shouldn't be too difficult.
It's hard to describe, but if you open the door and look at the top of the sill, you'll see a rubber strip attached to it: under that is a vertical lip (about 1 cm high) that just runs the length of the door. On the 5door this lip pretty much runs the whole length of the car, and it's this extra length that will stop it fitting a 3dr/coupe.
So all you'd have to do is cut down the bit you don't need and make it the same shape as the ones you've currently got.
Luckily the plastic will cut easily with a Stanley knife - I find that if you score it a few times you can then just bend it over and it will snap cleanly leaving a decent edge that will only require the very minimum of tidying up.
hope that makes sense
Personally I'd give it a go, as doing work like that doesn't faze me, but IMO the OE coupe ones are far far better looking than Irmy ones