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A privacy fence is a layout choice, not a material: boards set with no gap between them, built tall enough to block a sightline, most often 6 feet. This calculator keeps that zero-gap layout fixed and lets the material and height move, which is the opposite emphasis of the general wood fence calculator, where style is one of several open settings. Because the gap is zero, picket count here reduces to the usable run divided by board width, before the waste factor is added on top, which makes a privacy estimate one of the more predictable numbers in a wood fence take-off once the board width is settled.

Privacy is not the only way to build a fully screened fence. Board-on-board overlaps pickets on alternating faces of the rail so both sides look finished and no sightline gets through at any angle, at the cost of noticeably more boards over the same run. Shadowbox alternates pickets on both faces too, but with a small gap rather than an overlap, trading some screening for airflow and a lower board count than board-on-board. All three share the same post and rail formulas; the difference is entirely in how the infill boards are counted, which is why the board-on-board vs shadowbox vs solid privacy fence comparison is worth reading before locking in a style.

Posts on a tall, solid privacy fence carry more wind load than an open style, which is the practical reason 6x6 posts at wider spacing are common once height reaches 8 feet, while 4x4 posts at 6 to 8 feet on center handle a standard 6 foot fence. Once post count and hole dimensions are set, the fence post concrete calculator converts that into bags of concrete mix for the order. If the picket count from this page needs double-checking against a different board width or gap assumption, the fence picket calculator isolates that single step and shows the pitch math directly.

Height is usually the detail that needs confirming with the local building department before anything is ordered, since a fence over a certain height commonly triggers a permit in a given jurisdiction even though 6 feet is a common default. The wood fence installation guide and the how to install a wood privacy fence post cover the build sequence once height and style are set, and how much does a wood fence cost gives a starting range for budgeting before you enter your own local prices. The full set of styles lives on the wood fence calculators hub.

Height and material together also set the hardware you will need beyond lumber. A post cap, whether decorative or a simple flat weather cap, keeps water out of the end grain on a flat-topped post, and a solid privacy layout needs more fasteners per linear foot than a gapped style simply because more boards attach to the same rails. None of that changes the post, rail or picket formulas this calculator runs, but it is worth budgeting as a line item alongside the lumber itself, especially when a privacy fence is being priced against a lower-count style like a picket fence, since the hardware gap between the two styles is smaller than the lumber gap.

Neighboring properties are also worth a mention before a privacy fence goes in: a tall solid fence built directly on or near a shared property line is one of the more common sources of boundary disputes, and confirming the actual survey line, rather than an assumed fence row or an old marker, avoids a rebuild later. That step sits outside what any calculator can verify, but it belongs in the same planning pass as the material take-off, since moving a fence after it is built costs far more than confirming the line before the first post hole is dug.

On sloped ground, a privacy fence is built either racked or stepped: racking angles each panel to follow the grade continuously, which suits a gentle, even slope, while stepping keeps each panel level and drops it at the next post, which suits a steeper or uneven grade. Both methods use the same post, rail and picket counts this calculator returns, since the choice affects how the boards meet the ground rather than how many boards or posts the job needs. Deciding between the two before ordering lumber matters because racked panels sometimes need slightly longer boards cut to the rake angle, which is worth flagging to a lumber yard ahead of time rather than discovering it mid-job.

Expected lifespan varies by species more than by anything else in the build: pressure-treated pine commonly serves 10 to 15 years, cedar 15 to 20-plus years with periodic maintenance, and redwood similarly to cedar, assuming posts are set below the frost line and boards are kept off wet soil. None of those lifespan differences change the picket, rail or post counts on this page, since the zero-gap privacy formula is the same regardless of species; they only affect how often the fence needs staining, board replacement or eventual rebuilding.