To find pickets per section, divide the section width in inches by the picket width plus the gap between boards. A standard 5-1/2 inch picket installed with no gap works out to about 2.2 pickets per foot — so a 6-foot section needs roughly 13 pickets.
For a whole fence, let the fence calculator total it up — it handles picket width, gap, and waste so you order close to the right pile of lumber in one trip.
The Formula
Every picket count comes down to one piece of arithmetic:
Pickets = run in inches ÷ (picket width + gap)
That's it. The two numbers you plug in are the picket's actual width and the gap you want between boards.
- Picket width: Use the actual dimension, not the nominal one. A "1x6" picket is really about 5-1/2 inches wide. A "1x4" is about 3-1/2 inches.
- Gap: Zero for a solid privacy fence, or 2 to 3 inches for a classic spaced-picket look.
For a solid 6-foot privacy section (72 inches) with 5-1/2 inch pickets and no gap:
72 ÷ 5.5 = 13 pickets (rounded up).
That matches the 2.2-pickets-per-foot shortcut: 6 feet × 2.2 = 13.2, round up to 13.
Solid vs. Spaced Look
The gap is the single biggest lever on your picket count and your budget.
No gap (privacy). Boards butt edge to edge for full screening. Maximum pickets, maximum cost, maximum privacy. Use the 2.2-per-foot figure.
With a gap (decorative). Add a 2-to-3-inch gap for the traditional spaced-picket fence. Each picket now covers more linear distance, so you need fewer of them. With a 5-1/2 inch picket and a 3-inch gap:
- Each picket-plus-gap unit covers 8.5 inches
- A 72-inch section needs 72 ÷ 8.5 ≈ 9 pickets
That's four fewer boards per section than the solid version — real savings across a long run, plus airflow and a lighter look.
Wood pickets expand and contract with humidity. For a truly gap-free privacy fence, butt them tight on a dry day; a little seasonal movement will open hairline gaps that don't matter.
A Few Practical Adjustments
The raw formula gets you close. These tweaks tighten up the estimate:
- Round up, always. A partial picket means a sliver-cut board at the end of the section. Order the whole picket.
- Add 5 to 10 percent for waste. Knots, splits, cupped boards, and saw cuts add up. A small cushion beats a second trip to the yard.
- Plan the end picket. Rather than leaving an awkward thin rip at one end, split the difference and trim the first and last pickets equally for a balanced section.
- Match the picket to the rails. A 6-foot privacy fence uses 3 rails; fences up to 5 feet use 2 rails; an 8-foot fence uses 4. Make sure your pickets are long enough to land on every rail.
Tying It to the Whole Fence
Pickets are the last layer, so count them after the structure is set. Work in this order:
- Lay out posts at 6 to 8 feet on center (six for strength, eight for economy).
- Confirm depth — about 2 feet for a 6-foot fence, on gravel and set in concrete.
- Add rails per the height above.
- Skin the sections with pickets using the formula here.
Get the first three right and the pickets simply fill the gaps. A torpedo level keeps each board plumb as you fasten it, so the run reads straight from across the yard.
Quick Recap
- Pickets = run in inches ÷ (picket width + gap).
- A 5-1/2 inch picket, no gap ≈ 2.2 pickets per foot — about 13 per 6-foot section.
- Add a 2-to-3-inch gap for a spaced look and fewer boards.
- Round up and add 5 to 10 percent for waste.
- Match picket length to the rail count: 2 rails up to 5 feet, 3 at 6 feet, 4 at 8 feet.
Set your spacing and depth first with our fence post spacing guide and how deep fence posts should be, then total the whole job in the fence calculator.