Exterior Penetrating Oil / Deck Stain

For decks, fences, and rough outdoor lumber, a penetrating exterior stain or oil is often a better choice than a film-forming varnish. Film finishes on horizontal exterior surfaces (like a deck) trap moisture underneath, eventually peel, and are a nightmare to strip. Penetrating oils soak in, can't peel, and are easy to reapply when they fade. They won't give you a glossy look — the result is natural and matte — but they're much more maintenance-friendly.

Clean the surface thoroughly. For weathered wood, use a wood brightener after cleaning and before applying oil. Sand rough spots but don't need a fine finish — these products work into rough surfaces.

• Apply generously with a brush or roller, working it into the grain.
• Back-brush to ensure even penetration.
• Allow to penetrate for the time specified on the label.
• Wipe or back-brush off excess before it dries.
• Reapply annually or whenever the wood looks dry and grey.

• Applying to wet wood — won't penetrate and will peel.
• Leaving puddles — they dry into sticky, uneven spots.
• Expecting it to last as long as a film finish — it won't, but maintenance is much easier.