Estimates — add extra for waste and confirm with your supplier.
We divide your fence length by post spacing to get sections (posts = sections + 1), multiply sections by rails per section, and divide the total width by picket width plus gap to count pickets.
Plan your whole project with our other free DIY calculators.
Divide length by post spacing and add one for the end post.
Two for short fences, three for 6-foot privacy fences.
Divide total fence width (in inches) by picket width plus the gap between pickets.
6–8 feet is typical; closer spacing adds strength.
Buy a few spare pickets for breakage and future repairs.