double doors

Hi all, I am looking to build a stud wall into an archway to take a set of double doors. Just want to check what size I should make the space in the studwork to take the doors please. The doors I have are glazed, 1981mm(h) 1524mm(w) (both doors) 35mm(D). I have a 10mm Pairmaker to go between...

The house renovations are ongoing...yesterday I removed a failing sliding door and glass brick combination and replaced with a couple of cheap ebay louvred doors. I built a frame out of stud work and used 65mm butt hinges. Everything is square and vertical, according to my spirit level, but...