RailFX’s aluminum cable brace for level and stair runs can be used between structural posts to reduce cable deflection. For level runs, the aluminum cable brace is a 5/8-inch-by-5/8-inch, 42-inch-long square tube that can be cut down to any size; it comes predrilled with 12 holes at 3 1/8 inches on-center. For stair runs, the cable braces are 50 inches long and are available both in a predrilled, 12-hole option and in an undrilled option that can be customized to match the cable angle. Contact a local distributor for pricing. railfx.net