: The most common way to double them is the "A" orientation, where two posts are fastened back-to-back or in a way that provides maximum resistance to the gate's "pull".
For a visual walkthrough of the fundamental installation techniques that make these posts so stable: PostMaster Installation Full Video - 6' Privacy Fence Master Halco - Fence & Deck Supply YouTube• Jun 12, 2017 The "Dub" (Doubled) Master Post Setup (Dub) 2 : Master
: Doubling the posts provides significantly more stability than a single metal post, making it an "indestructible" alternative to traditional 4x4 or 6x6 wood posts. : The most common way to double them