Decking2 min read·Updated March 9, 2026
Wood Stain Guide: How to Stain Wood for Decks, Fences, and Interior Projects
How to choose and apply wood stain for different projects — deck stain, fence stain, interior wood stain — with surface prep tips and expected coverage.
Advertisement
Types of Wood Stain
- Transparent/clear stain: Enhances grain with no color change. Short lifespan (1–2 years exterior). Best for highlighting natural wood beauty on new, high-quality lumber.
- Semi-transparent stain: Shows grain while adding color. 2–4 year lifespan exterior. The most popular deck and fence stain choice — balances natural look with protection.
- Semi-solid stain: More pigment, less grain visible. 3–5 year lifespan. Good for weathered wood that needs more coverage.
- Solid stain: Opaque — looks like paint but penetrates deeper. 5–8 year lifespan. Best for older, rough, or damaged wood. Difficult to return to transparent after applying solid.
Choosing the Right Stain for Your Project
- New deck or fence: Semi-transparent water-based stain. Let new pressure-treated lumber weather 6–12 months before staining (allows preservatives to dissipate).
- Weathered/grayed deck: Clean first with deck brightener, then use semi-solid for better coverage.
- Interior projects: Oil or water-based stain + topcoat (polyurethane, oil, wax). Interior stains have different formulations than exterior.
Application Tips
Preparation is 80% of the job: clean all surfaces (deck cleaner, pressure washer), sand rough areas, let dry completely (24–48 hours). Apply in mild weather (50–90°F, no rain expected for 24 hours). Work with the grain. Apply thin, even coats — too thick causes peeling. Back-brush after rolling to work stain into cracks. Two thin coats outperform one thick coat.
Advertisement
Frequently Asked Questions
How often should you restain a deck?
Depends on stain type and sun/weather exposure. Semi-transparent stain on horizontal surfaces (deck boards): typically every 2–3 years. Semi-solid: 3–5 years. Vertical surfaces (railing, fence): last longer than horizontal — 3–5 years for semi-transparent. Watch for fading, graying, or water no longer beading on the surface as signs to restain.
Can I stain over old stain?
Yes, if the old stain is in good condition (not peeling, flaking, or bubbling). Clean thoroughly, lightly sand any rough areas, and apply new stain of the same opacity level or higher. You cannot go from solid stain back to semi-transparent — the pigments are already in the wood. Going from semi-transparent to solid stain is always possible.