How often does wood decking need to be re-stained?

For a wood deck in Snohomish County, Washington, a good general rule is to re-stain every 2–3 years, although the actual interval depends on the wood species, stain type, sun exposure, and how well water drains from the deck.

With the Pacific Northwest's frequent rain and damp conditions, moisture protection and regular cleaning are particularly important.

Pressure-treated wood: Every 2–3 years

Some decks need attention sooner, depending on exposure and the product used.

Cedar decking: Every 2–3 years

A heavily exposed deck may need recoating sooner; shaded cedar may develop moss or algae even if the stain remains intact.

Transparent or semi-transparent stain: Every 1–3 years

These finishes show the wood grain but generally need more frequent maintenance than more opaque coatings.

Solid-color deck stain: Every 3–5 years

Can last longer, depending on product quality and preparation, but may peel or wear in high-traffic areas.

These are planning estimates, not guaranteed product lifespans. Always follow the stain manufacturer's instructions.