Start With an Honest Assessment Before You Touch Anything
Before you grab a pressure washer or crack open a can of stain, walk your deck slowly and actually look at it. I mean get down on one knee and check the boards up close. After a Portland winter — which this year threw us plenty of wet weeks — you're likely dealing with some combination of surface mildew, raised grain, and boards that have started to cup or split at the ends. The mistake I see all the time is homeowners jumping straight to staining over wood that isn't ready. The stain won't bond, it peels by September, and then I'm out there doing the job twice.
Check your fasteners too. If you've got a Craftsman-era home in Sellwood or a newer build out in Beaverton, the deck hardware corrodes differently — older decks often have nails that have backed out just enough to be a trip hazard. Hammer those down or replace them with exterior-grade screws before anyone's walking around out there in sandals.
Cleaning Is 80% of the Job — Do It Right
For cleaning, I use a deck wash concentrate before I ever touch a pressure washer. Defy Composite Cleaner works well for composite decks; for natural wood I lean on Cabot Problem-Solver Deck Cleaner. Let it dwell, scrub with a stiff-bristle brush, then rinse. If you're using a pressure washer, keep it at 1200–1500 PSI max and always go with the grain — higher than that and you're raising the wood grain and creating more work for yourself.
Here's the good news: next week's forecast is looking about as perfect as Portland gets — highs near 87°F and no rain in sight. That's your window. Clean this weekend, let it dry 48 hours, and you're in prime condition to stain by midweek.
Staining — Pick the Right Product for the Northwest
I'll be direct: most of the stains at big box stores don't hold up here. We get UV exposure in summer and moisture the other nine months. The two I actually recommend are Armstrong Clark Semi-Transparent for natural wood (it soaks in beautifully and lasts two to three seasons here) and TWP 1500 Series if you've got cedar or redwood — that stuff performs exceptionally in the Pacific Northwest climate.
Apply in the shade or during cooler parts of the day. With temps hitting 87°F next week, direct afternoon sun will cause the stain to dry too fast and you'll get lap marks. Early morning application is the move.
Quick Repairs Worth Doing Before Your First Gathering
Loose railings, a wobbly post, one or two rotted boards — these are all reasonable DIY fixes if you're comfortable with basic carpentry. A tube of exterior wood filler and a couple of cedar replacement boards from Parr Lumber will handle most small repairs.
That said, if your ledger board looks questionable or you've got structural concerns, please call someone. That's not a scare tactic — it's just not worth the risk at a party.
If you'd rather hand the whole project off, EVN Handyman does deck prep, staining, and minor repairs throughout Portland, Beaverton, and the surrounding area. We can usually get out within the week — which means you'd be ready well before your first backyard gathering of the summer.