Reference tables
Look-up charts built from stable conventions — posts & sections by line length, pickets per 100 ft by width & gap, concrete bags per post hole, standard panel widths, post-hole depth by post height, and installed cost per linear foot by material.
Typical industry planning values — NOT a structural/geotechnical design. Frost depth, soil, wind load and local code set the real post depth and footing; check your local building department and call 811 to locate utilities before you dig. A licensed engineer sizes load-bearing or high-wind fence posts.
Fence posts & sections by line lengthHow many posts and sections a fence line takes at 6, 7 and 8 ft on-center spacing — stable geometry, a look-up behind the fence and post calculators.Pickets per 100 feet by picket width & gapHow many pickets 100 linear feet takes by picket width (3.5"/5.5") and gap (0–2.5") — labeled conventions behind the picket / board count calculator.Concrete bags per post hole by post & hole sizeBags of concrete per post hole for 40/50/60/80 lb bags by post and hole size — labeled yields behind the concrete-per-post calculator.Standard fence panel widths & height bandsStandard pre-built panel widths (6 and 8 ft) and common height bands (4/5/6/8 ft) — labeled conventions behind the panel and vinyl/metal count tools.Post-hole depth by above-ground post heightTypical post-hole depth (≈1/3 of above-ground height + 6" gravel) by fence height — labeled planning values, NOT a structural design; call 811 before you dig.Fence cost per linear foot by material (installed)Typical installed cost bands per linear foot by material (wood, vinyl, chain-link, aluminum, wrought iron, farm, pool), as labeled PLANNING bands — a sanity guide behind the cost tools.