BUILDING A PLATFORM

Use 6 legs per platform, one at each corner, one on both sides in the middle.  When the legs are on, cross brace with 1x3’s at diagonals for stability.  It also helps, one the platforms are built on the legs and you have them where you want them on stage, to brace them together and to use little metal L braces to attach them to the stage floor if you can do that.