Vinyl Fence Calculator
Calculate vinyl fence panels, posts, post caps and concrete for any vinyl fence install.
The vinyl fence calculator returns panels, posts (broken out by type) and concrete for any vinyl install. Vinyl fence systems have four distinct post types: end posts (one routed face), line posts (two opposing routed faces), corner posts (two adjacent routed faces) and gate posts (heavy-gauge, no routing). Each post type has its own SKU at the supplier - you cannot substitute one for another, and ordering the wrong split is the #1 vinyl fence mistake. Vinyl posts need more concrete than wood (typically 2 bags of 60lb per post) because vinyl flexes and the post relies entirely on the footing for rigidity. For exact concrete-per-post numbers, use the post hole concrete calculator.
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Frequently asked questions
With 6 ft panels and 2 corners + 1 gate: 17 sections, 2 end posts, 2 corner posts, 2 gate posts and 13 line posts = 19 total posts. With 8 ft panels and the same layout: 13 sections, 17 total posts. Each post has a specific SKU - the supplier will not let you mix them up. Always count corners and gate locations carefully before ordering.
End posts: routed on one face only, used at the start and end of a fence run. Line posts: routed on two opposing faces (one panel on each side). Corner posts: routed on two adjacent faces (panel on each side at 90 degrees). Gate posts: heavy-gauge with no routing - panels do not attach, gates hang from them with hinges screwed through the wall. End and corner posts cost more than line posts; gate posts cost the most.
About 2 bags of 60lb concrete per post for a standard install (12 inch diameter hole, 36 inches deep with 6 inches of gravel under). That is more than wood fences need because vinyl flexes and relies entirely on the footing for stability. Gate posts often need even more - 3 bags each - to handle gate weight without sagging. The post hole concrete calculator gives exact numbers.
No - vinyl panels are designed to slide into routed channels in vinyl posts. The tongue-and-groove engagement is what holds them in place; you cannot screw vinyl panels into wood. Some hybrid systems use steel posts wrapped in a vinyl sleeve but the panels still need vinyl-compatible routing. Wood and vinyl fencing systems are not interchangeable.
20-30 years for a quality vinyl fence vs 10-15 years for a wood fence in similar conditions. Vinyl resists rot, insects and UV degradation (modern formulations have UV inhibitors). The trade-off is upfront cost - vinyl runs 2-3x the price of pressure-treated wood. Over a 30 year ownership horizon vinyl is usually the cheaper option. Cheap vinyl yellows and gets brittle - buy from a reputable manufacturer.