Geoff is right. 1/96 stanchions are usually 11 mm above deck. Having tried various kinds I too found the John R Haynes RN ones the best.
They come in two or three hole varieties. I use the three hole for permanent 'fixed' stanchions, with 0.5 dia brass wire, and the two hole version and 0.3 dia wire for railings that would normally be folded flat on deck when cleared for action. ie: around gun positions and torpedo tubes.
I was recommended "Carrs 188 solder paint" on this forum, by Geoff actually, and it really makes soldering easy. Brush-applied to each joint, just the briefest touch of a soldered iron makes a joint limited to just the area ‘painted’. Controllable. No styrene deck melt.