The fence calculator turns your run length and post spacing into post counts, rail counts, and picket counts, accounting for the picket-plus-gap module so your spacing comes out even. It is ideal for wood privacy fences, picket fences, and post-and-rail layouts.
Every result shows the formula used and exports to PDF or CSV. For related framing and lumber math, see the framing calculators and the board foot calculator, or browse all estimating guides.