The General Rule for Post Depth
As a general rule, roughly one-third to one-half of a post's total length should be buried below grade. For a standard 6-foot fence, that typically means setting 2 to 3 feet of post into the ground, with the hole diameter around three times the width of the post itself to leave room for a proper concrete footing. Shallower holes might hold up for a season or two, but they're the most common reason we get called out to fix a leaning or heaving fence.
Why This Matters More in Florida
Florida's sandy, often high-water-table soil doesn't hold a post the way denser clay soil does in other parts of the country, and our summer storm season adds real wind load to the equation. We account for both when setting posts — using a consistent depth, a properly sized concrete footing, and grading around the base so standing water doesn't sit against the post after a downpour.
Post Spacing
Wood fence posts are typically spaced 6 to 8 feet apart along a run. Vinyl posts often run 8 to 10 feet apart, since vinyl panels are manufactured in wider standard widths than a typical wood board-and-rail section. Spacing can tighten up on taller privacy sections or in more wind-exposed spots, like open lots in Wimauma or larger rural parcels in Ruskin, for added stability.
Wood vs. Metal Posts
We set pressure-treated 4x4 wood posts in concrete for most standard residential runs. On longer stretches or sandy, high-water-table lots, we sometimes recommend galvanized steel posts sleeved in wood post covers for extra stability — something we'll flag during your site visit if your property's soil conditions call for it.
How Long Does Installation Actually Take?
A standard residential backyard fence, roughly 150 to 200 linear feet, typically takes 1 to 3 days once the permit and any HOA approval are in hand. Larger properties — the bigger rural lots we build on in Gibsonton and Ruskin, for example — or projects with multiple gates and access points can extend that timeline. We give you a realistic estimate specific to your property during the site visit rather than a generic number.
PAA: Fence Post Depth & Timeline Questions
How deep should a fence post hole be?
As a general rule, roughly one-third to one-half of a post's total length should be buried below grade — for a standard 6-foot fence, that typically means 2 to 3 feet of post set into the ground, with the hole diameter around three times the width of the post itself.
How far apart should fence posts be spaced?
Wood fence posts are typically spaced 6 to 8 feet apart, while vinyl posts often run 8 to 10 feet apart since vinyl panels are manufactured in wider standard widths. Spacing can tighten up in higher-wind areas or on taller privacy sections for added stability.
How long does it take to install a fence?
A standard residential backyard fence, roughly 150 to 200 linear feet, typically takes 1 to 3 days once the permit and any HOA approval are in hand. Larger properties, more gates, or difficult ground conditions can extend that timeline.
Built Right, the First Time
Proper post depth isn't something you can see once the fence is finished, which is exactly why it's worth asking any contractor how they set posts before you hire them. Every fence we install follows the same depth and footing standard regardless of material, backed by our workmanship warranty.
Ready for a free estimate? Request your quote here or call us at (813) 803-6881.
Also see: Fence Repair & Replacement and Do You Need a Survey Before Installing a Fence?