Flooring across Oregon
Ten cities on two sides of one mountain range. Every figure here is that city's own Census number, and every page says which side it is on.
West of the crest first
Which side of the Cascades each city sits on, then its own Census figures. The side decides how a wood floor behaves; the housing age decides whether there is already one under the carpet.
| City | Side of the crest | Median year built | Built before 1940 |
|---|---|---|---|
| Portland | West of the crest | 1966 | 26.8% |
| Springfield | West of the crest | 1976 | 4.6% |
| Corvallis | West of the crest | 1978 | 8.0% |
| Salem | West of the crest | 1980 | 8.8% |
| Eugene | West of the crest | 1980 | 6.1% |
| Gresham | West of the crest | 1981 | 2.7% |
| Beaverton | West of the crest | 1987 | 2.2% |
| Hillsboro | West of the crest | 1997 | 2.9% |
| Medford | Rain shadow | 1984 | 8.8% |
| Bend | Rain shadow | 2001 | 4.2% |
Housing figures for this page: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, tables B25034 and B25035.
Pick your city
Each page covers that city's housing stock, what it does to a floor, and installed cost ranges adjusted for regional labor.
Why the city matters more than you would think
Portland takes 43.7 inches of rain a year across 163 days with measurable precipitation. Bend, 130 miles east across the Cascades, takes 10.6 inches across 63. Four times the rain and a hundred more wet days, inside one state — and the two cities do not want the same floor.
That gap is why this site asks one question before any other: which side of the Cascade crest is the room on? West of it, a mild damp climate holds indoor humidity inside the range wood flooring is specified for, so solid hardwood is an ordinary choice and the more interesting question is what is already under the carpet. East of it, winter interiors run below that range, so the moisture target moves, the format changes and humidification becomes part of the installation. Every city page here says which side it is on and what follows from that.
Questions people actually ask
Does it really matter which side of the Cascades I am on?
For a wood floor, yes, and it is the biggest single variable in this state. Portland gets 43.7 inches of rain a year and Bend gets 10.6. A western Oregon interior sits inside the 30-50% humidity range wood flooring is specified for most of the year without help; a Central Oregon interior routinely runs 15-20% in winter. Same board, same warranty, two different outcomes. For tile, stone, vinyl plank and laminate it makes almost no difference at all, because none of them move with humidity.
What moisture content should the installer be targeting?
Ask, and expect a number. The specified range is 6-9% moisture content, and where in that range depends on the room the floor will live in. East of the Cascades that is near 6%; in the Willamette Valley it is nearer the top. A board delivered at 9% and laid in Bend in November will keep drying after the crew leaves and the gaps will open in January. An installer with a meter and an answer is telling you something useful.
Is there really an old wood floor under my carpet?
In a west-side house built before about 1950, quite possibly, and in an Oregon house of that era it is usually 3-1/4 inch vertical-grain Douglas fir rather than oak. More than a quarter of Portland's housing predates 1940. Lift a corner in a closet with pliers, fold the carpet back off the tack strip and look. It costs ten minutes and refinishing runs about a third of the cost of a new floor.
Can I put solid hardwood in Bend?
Yes, and plenty of houses have it. It needs a narrower board, a genuine acclimation target near 6% moisture content, and whole-house humidification run through the winter. Treated as part of the installation it works; treated as optional it gaps. Engineered is the lower-maintenance answer on that side of the state and it is not a compromise if the wear layer is thick enough to refinish.
How flat does my floor actually need to be?
Most plank manufacturers specify around 3/16 in over 10 ft, and tile — particularly large-format — wants closer to 1/8 in over 10 ft. Lay a ten-foot straightedge on the floor and measure the biggest gap under it. That one measurement decides whether you are buying a floor or a floor plus a leveling job, and knowing it before you get quotes is worth more than any other ten minutes you will spend.
Do flooring installers in Oregon need a license?
Yes. Anyone paid to do construction work in Oregon must hold an active license with the Construction Contractors Board, and unlike some states there is no specialty exemption for floor covering. The license requires a surety bond and general liability insurance, and the number is public and searchable on the CCB's own site. Check it — it takes a minute. But treat it as a floor rather than a recommendation: it tells you someone is bonded, not that they have ever sanded a fir floor.