Deck & Fence Staining in Citrus Heights, CA

Exterior wood is a harder problem than any wall, and it is worth being honest about why. A deck board is horizontal, so it holds standing water instead of shedding it, it takes direct overhead sun for the whole of a long dry summer, and it gets walked on. No finish on a horizontal surface in this climate lasts as long as the same product on a vertical wall. Anyone promising otherwise is selling something.

What that means in practice is that a deck is on a shorter cycle than a house, and planning for that is better than being surprised by it. A fence, which is vertical and does not get walked on, sits somewhere between the two.

Preparation is cleaning first — decks accumulate a gray surface layer of degraded wood fiber, plus mildew and algae on anything shaded — then sanding back anything rough or splintered, then letting the wood dry properly. Staining wood that is still holding moisture traps it under the finish, and that is what causes the blotching and early failure people blame on the product.

Penetrating stains soak into the wood rather than forming a film on top of it, which is what you want outdoors: when a penetrating finish wears, it fades and thins rather than peeling in sheets, so the next re-coat is a wash and a re-stain instead of a strip-back. A UV-protective sealer over the top is what slows the graying.