The larger the wire, the stronger it is A single braid can use 20 gauge - 18 gauge (0.8-1mm wire) Double braid 22 gauge - 20 gauge (0.6-0.8mm) If the bead hole is too small, use 22 gauge (0.6mm) ...

This is herringbone weave, is a basic technique. It has so many variations, just change a little (wire size, number of loops, ...