How to Build a Wood Fence
Lumber selection, post setting, panel framing, hardware, and finishing — everything you need for a Florida-ready wood fence.
Wood fencing is the most labor-intensive of the fence types — but it's also the most customizable, the most natural-looking, and often the most cost-effective for large residential properties. Florida's climate adds specific challenges: sandy soil, high humidity, intense UV, and afternoon thunderstorms. This guide covers each step with Florida conditions in mind.
Five Steps to a Lasting Wood Fence
Follow these steps in order — skipping ahead, especially on post setting, leads to fences that lean, warp, or rot within a few years.
Choosing the Right Lumber
In Florida's heat and humidity, lumber choice determines how long your fence lasts. Pressure-treated pine (PT) is the standard for posts — ground-contact rated (UC4B minimum) is required for any wood going into the soil. For pickets and rails, you have three real options: pressure-treated pine, cedar, or cypress. PT pine is the most affordable and readily available. Cedar is naturally rot-resistant, holds paint and stain better, and is less prone to warping. Cypress is a premium Florida-native option with outstanding rot resistance — excellent if you can source it locally. Avoid untreated pine for any exterior fence component. It will rot within a couple of seasons in Central Florida.
- Posts: always UC4B ground-contact rated pressure-treated — no exceptions
- Pickets: cedar holds its shape better than PT pine in Florida humidity
- All PT lumber should be dried before painting — fresh PT is wet and won't hold finish
- Buy a few extra pickets — warped and cracked boards are common in any bundle
- Avoid big-box "whitewood" for rails — it cups and warps quickly outdoors
Setting Posts in Florida Soil
Post setting is the most critical step — and Florida's sandy soil makes it harder than in most of the country. The standard depth rule is one-third the post length in the ground. For a 6-foot fence using 8-foot posts, that's at least 2 feet — but 2.5 to 3 feet is strongly recommended in sandy soil. Loose sand doesn't grip the concrete footing the way compacted soil does, so the footing must be larger and deeper to prevent movement. Use a minimum 10-inch diameter hole for 4x4 posts, 12-inch for 6x6. Fast-setting concrete is ideal for Florida installs — mix it dry in the hole, add water, and it sets in 20–40 minutes before afternoon rains arrive. Always brace posts plumb until the concrete fully cures (24–48 hours).
- Call 811 before digging — it's free and required by Florida law
- Sandy soil: dig 2.5–3 ft deep minimum for 6-ft fence posts
- Pour concrete above grade and slope away from post to shed water
- Fast-setting concrete cures before afternoon thunderstorms wash it out
- Use a 2-foot level and diagonal braces — plumb posts make everything easier
- Corner and gate posts: use 6x6 or at minimum double-up the footing size
Framing and Panel Styles
The three most common wood fence styles each use the same post spacing (typically 6–8 feet on center) but differ in how pickets attach to rails. Board-on-board: pickets alternate sides of two horizontal rails, overlapping by 1–2 inches. This is the most popular style in Florida — it provides full privacy while allowing airflow that reduces warping. Shadowbox: similar overlap pattern but built as a true panel with pickets on both sides of a center rail — looks the same from both sides. Dog-ear picket: flat-top or dog-eared pickets nailed flush to the front face of two or three horizontal rails. This is the simplest to build and the lowest cost. Three rails (top, middle, bottom) are recommended for any fence taller than 4 feet, and mandatory for 6-foot privacy fences — two rails leave too much flex.
- 6-ft privacy fence: always use 3 rails (top, middle, bottom)
- Board-on-board: provides privacy and allows wind airflow — best for Florida storms
- Space top rail 6–8 inches from post tops, bottom rail 6–8 inches from grade
- Pre-assemble panels on the ground before lifting into place if working solo
- Snap a chalk line between posts at each rail height before nailing
- Leave 2 inches of clearance between the bottom picket and grade to prevent rot
Hardware for Florida's Climate
Standard hardware corrodes quickly in Florida's salt air and humidity. Every nail, screw, bracket, and hinge must be hot-dipped galvanized (HDG) or stainless steel — electroplated zinc fasteners will rust and stain your fence within a year. For picket attachment, 8d (2.5-inch) or 10d (3-inch) hot-dipped galvanized ring-shank nails are the traditional choice. Exterior-rated structural screws (ACQ-compatible, coated) are a better option for DIY — screws allow adjustment and won't pop out with wood movement. Post caps should be metal or high-quality PVC — bare post tops trap water and rot from the inside out. Hinges for wood gates should be strap hinges with at least 3-inch mounting screws; light strap hinges fail quickly under gate weight.
- Hot-dipped galvanized or stainless steel only — no electroplated zinc
- Ring-shank nails hold better than smooth-shank in humid climates
- Screws > nails for DIY — easier to adjust and won't pop with wood movement
- Install post caps on every post — it dramatically extends post life
- Gate hinges: strap-style with 3-inch+ screws into solid posts
- Use ACQ-compatible fasteners — PT lumber with ACQ treatment corrodes standard hardware
Finishing for the Florida Climate
Unfinished wood in Florida ages fast — UV exposure, humidity, and mold attack bare wood within months. For pressure-treated pine, let it dry fully (4–6 weeks) before applying any finish — wet PT lumber rejects paint and stain. Once dry, a penetrating oil-based stain-and-sealer is the most durable choice. Solid-color stains outperform paint on fence boards because they flex with wood movement instead of cracking. Semi-transparent stains show wood grain and are easier to recoat. If you choose paint, use a 100% acrylic exterior latex — it flexes better than oil paint in temperature swings. Recoat every 2–3 years in Central Florida (more often in coastal or fully exposed locations). Cedar and cypress can be left natural — they weather to a silver-gray over time — but they'll last longer sealed.
- Let fresh PT lumber dry 4–6 weeks before painting or staining
- Penetrating stain-sealer > paint for fence boards — less cracking and peeling
- Semi-transparent stains are easier to recoat (no stripping required)
- Apply finish in the morning — afternoon Florida heat causes lap marks
- Back-brush or back-roll stain into end grain — end grain absorbs the most moisture
- Cedar and cypress: a clear UV sealer every 2 years keeps the natural color
Material Checklist
Run through every item before you order. A missing bag of concrete or the wrong fasteners will cost you a half-day of delays.
Wood Fence Permits in Florida
Many Florida counties require a permit for fences over 6 feet tall, and some HOA communities require approval for any fence regardless of height. Lake County and surrounding counties typically require permits for fences in front yards or adjacent to roads. Always check with your county building department and HOA before breaking ground.
If the fence encloses a pool or spa, Florida Statute 515 applies — see our pool barrier code guide for specific requirements. Wood fencing can meet pool code, but picket spacing (4-inch max) and self-latching gate requirements still apply.
Most Common Mistakes
These come up on almost every DIY wood fence project in Florida.
Calculate Your Wood Fence Materials
Enter your fence dimensions and our calculator will estimate post count, rail count, picket count, and concrete bags.
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Bring us your measurements and we'll put together a complete material list with contractor pricing. Same-day pickup in Leesburg, FL or job-site delivery on our flatbed.
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