Most privacy fences look good on one side — and terrible on the other. And while box-shadow fences look clean from both sides, they usually sacrifice privacy. In this build, I break down the box-shadow fence design I built around my yard years ago — nearly 400 feet of it — and explain exactly how to build it the right way. From post layout and rail placement to picket spacing, backside alignment, and material planning, this guide walks through the entire system step by step. The example project is a changing-room fence that also hides pool equipment, but the method applies whether you’re building a short section or fencing in your whole yard.