Refinishing a Pressure-Treated Deck

When refinishing wood outdoors, you have two main choices of finish: sealers, which prevent wood from absorbing water and delay the weathering process; and stains, which both color and seal the wood. Semitransparent stains or sealers work best on pressure-treated lumber. Avoid direct sunlight when you're working. Watch the weather: don't apply a new finish if rain is expected within 24 hours.

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Step One

Use an orbital sander to remove any gloss and smooth out any rough areas on decking boards, railings or stair treads. Always be sure to wear a dust mask and eye goggles to protect your eyes when sanding treated wood.

Step Two

Thoroughly vacuum the deck, then apply staining sealer to all deck wood with a pressure sprayer or paint roller. Treat the understructure first, then exposed surfaces.

Step Three

Use a paintbrush to smooth out drips and runs. Porous wood may require a second coat of staining sealer for even coverage.

Steps 1 - 3 of 3

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Refinishing a Pressure-Treated Deck

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