Start with measurements and scope
- What a single fence-run estimate tells you — distinguish a straight run from a full-property layout.
- How to enter measurements — selectable units and fields with fixed units.
- How gate openings change the estimate — net length and added planning posts.
- Copy a result and keep its inputs — copying displayed text is not saving a project.
Read the material quantities
- How the calculator counts posts — section rounding, endpoints and gate allowances.
- Why a tiny length change can add a post — section ceilings at exact spacing multiples.
- Post length and implied embedment — height-based formula notes, not a required installation depth.
- How the calculator estimates rails — height and straight-run sections.
- How the calculator counts pickets — width, gap, gate deduction and whole-item thresholds.
- Chain-link fabric length — a length rather than a wood-picket count.
- Concrete volume and bags — supplied hole volume and printed bag yield.
- Why concrete bag counts jump at cutoffs — whole-bag rounding and its dependency on post count.
- How the calculator estimates fasteners — distinct planning allowances, not a hardware catalogue.
Compare and troubleshoot results
- Whole-run versus per-bay picket rounding — why different rounding boundaries can give different counts.
- Why the result shows zero infill — the zero floor does not validate a gate layout.
- Does the wood type change counts? — a label is not a geometry preset.
- Why a cost result is missing — the inputs needed before an entered-price total is shown.
- Which length is used for cost per foot? — full length versus net infill length.
Check what the tool does not model
- Closed perimeters versus straight-run post counts — distinguish shared-corner diagrams from the tool's endpoint formula.
- Repair quantities versus new-fence counts — separate retained components and replacement items from a new-run estimate.
- Gate openings versus gate-leaf materials — keep the moving assembly's inventory separate.
- Overlapping boards and second layers — these require a different coverage model.
- Pickets versus prefab panels — do not relabel a loose-infill result as a panel order.
- Material counts versus stain area — quantities are not a coating-volume calculation.
These are implementation guides, not engineering specifications, supplier quotes or local-code advice. Use the actual layout and chosen system's documentation before ordering materials.