Frequently Asked Questions About Calculating Fence Pickets Needed
Q1. How many pickets do I need for my fence?
Divide your total fence length (in inches) by the combined width of one picket plus your desired gap between pickets. For example, if you're using 5.5-inch-wide pickets with a 0.5-inch gap (6 inches total per picket), a 100-foot fence (1,200 inches) would need 1,200 / 6 = 200 pickets. Always round up and add a few extra for cutting errors or future replacements.
Q2. How does picket spacing affect the total picket count?
Tighter spacing (smaller gaps or no gaps at all, as in privacy fencing) requires more pickets per linear foot since each picket covers less combined space with its neighbor. Wider spacing (as in semi-privacy or decorative fencing) requires fewer pickets to cover the same distance, since the gaps do more of the work covering that linear footage.
Q3. Do I need to account for gates and fence posts separately from pickets?
Yes. Measure the length taken up by gate openings and subtract that from your total fence length before calculating picket count, since gates use their own panel material rather than individual pickets. Posts themselves don't typically reduce picket count, since pickets are usually attached to horizontal rails that run between posts, not to the posts directly.
Q4. What's standard picket spacing for privacy versus semi-privacy fences?
Privacy fences typically use little to no gap (0 to 3/8 inch) between pickets so sightlines are fully blocked. Semi-privacy or decorative fences often use a consistent gap of 1 to 3 inches between pickets, which allows some airflow and light through while still providing a defined boundary and partial screening.
Q5. Should I buy extra pickets beyond my calculated total?
Yes, add 5-10% extra pickets beyond your calculated count to cover pickets that split or crack during installation, cutting mistakes at the ends of runs, and future replacements if a picket is damaged after installation. Keeping a few matching spares on hand also means you won't need to track down the same style, color, or weathering match years down the road.