Wakefield Trinity • Stadium and other issues

Does anyone know what the exact capacity is of the North Terrace? (and the West Terrace, for that matter?)

I'm wondering what the main restriction is on the capacity of the North terrace, as it certainly doesn't seem to be physical space. I went there a couple of times last season when it was a "capacity" crowd of 4710, and there was loads of room all around me.

Is it the state of the terrace? Number of crash barriers? Gangways? Number of exit points?

I'm just hoping there are some simple/cheap(ish) fixes that could raise the capaity, rather than having to have any major rebuild of the terrace. (as I quite liked it in there, and I haven't got a season ticket!)