I want to install a handrail up my stairs and just want some advise on a couple of issues. Firstly, what is the required height of the top of the rail from the nose of the stairs? I heard it was 32inches but please correct me if I'm wrong. Mainly though, if you look at my picture, you'll see that the stair wooden edge curves before the straight run up the stairs. Should I work from the nose of the 3rd stair up in the picture so the rail is parallel all the way up or from the wall at the 1st stair, which I would think looks odd, or is there a certain method for this? I only want a rail up the main stretch of the stairs I might add. If worked from the 3rd step up, how many brackets should I use. The length is 2.3 metres. Any help greatly appreciated. Thanks