Every straight, professional fence line starts with rock-solid, perfectly vertical corner and terminal posts. If your corners are even slightly out of plumb or shift during concrete curing, your entire run of panels will lean and ripple.
The 2x4 Diagonal Triangulation Method
Always secure corner posts with two temporary 2x4 braces set at 90-degree angles to each other, anchored into ground stakes with duplex nails before pouring concrete.
