Vinyl Privacy Fence Calculator
Calculate tongue-and-groove vinyl privacy panels, routed posts, post caps and concrete footings for standard 6ft fencing runs.
Fence calculator
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Overview
Vinyl privacy fences use interlocking PVC tongue-and-groove vertical pickets slotted into heavy-duty top and bottom horizontal rails. They never need painting, staining, or chemical treatments and do not rot.
Vinyl fencing requires strict post spacing precision because prefabricated rails slot directly into pre-routed post holes with fixed internal tab clearances.
Common mistakes
- Setting posts with imprecise spacing, causing vinyl rails to either pull out of routed holes or buckle under compression.
- Failing to install aluminum bottom rail stiffeners, causing heavy 6-foot vinyl panels to sag over time.
- Omitting steel rebar or stiffener inserts inside gate latch posts and hinge posts.
- Overtightening screws and fasteners, preventing natural thermal expansion and contraction during hot summer days.
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Related reading
In-depth guides
Frequently asked questions
How does thermal expansion affect vinyl privacy fences?
PVC expands and contracts up to 1/4 inch per 8-foot rail between winter cold and summer heat. Rails must have adequate slip clearance inside routed post pockets.
Do vinyl fence posts need concrete inside the hollow post?
Generally no, except on gate posts and end posts where rebar and concrete inside the post reinforce against gate swing stress. Line posts are held by the outer footing collar.
How do you clean a white vinyl privacy fence?
Wash annually using a garden hose, mild dish soap or vinyl fence cleaner, and a soft microfiber brush. A gentle pressure washer easily removes green algae and mildew.
How deep should vinyl privacy fence posts be set in the ground?
For a 6-foot privacy fence, 5x5 posts should be buried 30 to 36 inches deep in a 10 to 12-inch diameter concrete footing, extending below the local frost depth.
What is inside a vinyl privacy fence panel?
A vinyl panel consists of interlocking vertical tongue-and-groove boards, a slotted top rail, a reinforced bottom rail with an internal aluminum channel, and two U-channel post trim strips.
Can vinyl privacy fencing be installed on a slope?
Yes, either by stepping panels horizontally with varying post heights, or using racked panels designed to angle with slopes up to 10 degrees.
Does vinyl fencing crack in freezing winter temperatures?
Modern virgin vinyl compounds contain impact modifiers and UV inhibitors that remain flexible and impact-resistant in sub-zero winter temperatures.
How long does a vinyl privacy fence last?
High-quality vinyl fences typically last 25 to 30 years or more with minimal maintenance. Warranty terms vary by manufacturer, and many offer a limited warranty on the panels, so check the specific product's terms rather than assuming a lifetime warranty.