How to Prep and Paint a Fence: Step-by-Step Guide

A freshly painted fence transforms the look of any yard — but the prep work is what makes it last. A coat of paint on a dirty, degraded fence peels within a year. Done right, a painted fence lasts 5–8 years before needing attention.

What You'll Need

Tools

• Paint sprayer (see our top picks) OR brush and roller
• Pressure washer (see our guide) OR stiff bristle brush
• Putty knife or 5-in-1 tool
• Sandpaper (80-grit for stripping, 120-grit for prep, 220-grit for finish)
• Random orbital sander (for large flat sections)
• Drop cloths and plastic sheeting
• Safety glasses and respirator mask (for spraying)
• Paint stirrer

Materials

• Exterior wood primer
• Exterior paint or solid stain (latex or oil-based)
• Wood filler/putty (for cracks and holes)
• Caulk (for gaps at posts)
• Painter's tape

Step 1: Inspect the Fence

Before buying paint, assess the fence condition:

• Rotted boards: Replace before painting — paint won't save rotted wood
• Loose boards: Re-nail or screw loose pickets and rails
• Raised nail heads: Countersink all nails; putty over heads
• Cracks and splits: Fill with exterior wood filler
• Old peeling paint: Must be fully removed — peeling paint prevents adhesion

Step 2: Clean the Fence

Option A — Pressure Washing (preferred):

1. Use 1,800–2,500 PSI with a 25° nozzle
2. Work top to bottom, with the wood grain
3. Allow to dry completely — minimum 48 hours (72+ in humid weather)

Option B — Hand Scrubbing:

1. Mix: 1 gallon water + 1 cup bleach + 1 cup TSP (trisodium phosphate) substitute
2. Apply with a brush, scrub thoroughly
3. Rinse with a garden hose
4. Allow to dry 48–72 hours

Mildew treatment: If black or green spots remain after washing, apply a diluted bleach solution (1:3 with water), scrub, and rinse.

Step 3: Strip Old Peeling Paint

Any areas with peeling or flaking paint must be stripped to bare wood before priming:

1. Use a putty knife or paint scraper to remove all loose, flaking paint
2. Sand with 80-grit sandpaper to feather edges and smooth the surface
3. For large areas, use a random orbital sander
4. Wipe away all sanding dust with a tack cloth or damp rag

Step 4: Make Repairs

• Cracks and holes: Fill with exterior wood filler. Apply, let dry per manufacturer time, sand smooth with 120-grit.
• Gap at post bases: Apply exterior caulk where boards meet posts. Smooth with a finger and let dry.
• Split boards: Apply exterior wood glue, clamp, let dry 24 hours, then sand smooth.

Step 5: Prime

Primer is not optional on bare or degraded wood. It:

• Seals the wood and prevents paint absorption
• Provides adhesion for the topcoat
• Blocks tannin bleed-through (critical for cedar and redwood)
• Extends the life of the topcoat significantly

Primer application:

• Use an exterior oil-based primer for bare wood (best adhesion)
• Water-based primers work for previously painted wood in good condition
• Apply by brush for precision, or sprayer for speed
• Allow full cure time (check label — typically 4–8 hours)

Step 6: Paint or Stain

Choosing Paint vs Stain

| Product | Appearance | Longevity | Maintenance | |---|---|---|---| | Latex exterior paint | Opaque color | 5–8 years | Can peel, must be stripped | | Solid deck stain | Opaque color | 3–5 years | Fades gradually, no peeling | | Semi-transparent stain | Shows wood grain | 2–3 years | Re-coat without stripping |

For fences: solid stain is the professional choice — the color opacity of paint without the peeling failure mode.

Application by Method

With a Paint Sprayer:

• Read our best paint sprayers for fences guide first
• Mask all adjacent surfaces and plants
• Work top to bottom, spray gun 10–12 inches from surface
• Apply two thin coats; let the first dry before applying the second
• Back-brush on horizontal surfaces to work paint into wood grain

With Brush and Roller:

• Use a 4-inch brush for picket tops and edges
• Use a small foam roller for flat picket faces
• Work in sections of 5–6 pickets
• Apply two coats

Drying Time Between Coats

• Latex paint: 2–4 hours between coats
• Oil-based paint: 8–24 hours between coats
• Check with a finger — the first coat must be dry to the touch

Step 7: Clean Up and Inspect

1. Clean all tools immediately after finishing (warm soapy water for latex; mineral spirits for oil-based)
2. Remove drop cloths and masking
3. Inspect for missed spots, runs, or thin coverage — touch up with a brush while the paint is still within the recoat window

How Long Will It Last?

| Prep Quality | Longevity | |---|---| | Minimal prep, one coat | 1–2 years | | Proper cleaning, primer, two coats | 5–8 years | | Full strip, prime, solid stain, two coats | 6–10 years |

The prep work is the investment. A well-prepped fence needs repainting every 6–8 years. A poorly prepped fence peels in 18 months.

Product Recommendations

• Paint sprayer for fences: See our top picks →
• Exterior primer: Zinsser Bulls Eye 1-2-3 — CHECK PRICE ON AMAZON
• Solid fence stain: Cabot Australian Timber Oil or Olympic Elite — CHECK PRICE ON AMAZON
• Pressure washer: Best pressure washers for home →

Last updated: March 2025. As an Amazon Associate we earn from qualifying purchases.