Hardwood Floor Refinishing in Portland, Oregon
What it costs, and what Portland's housing stock does to the job.
Floor refinishing in a 1966-median city
The median Portland home was built in 1966 and 26.8% of the city’s housing predates 1940. For floor refinishing specifically, that is not background color — it is the thing that decides the job.
The best refinishing prospects in Oregon are here. Original fir treads and floors are common in this housing, and refinishing costs roughly a third of replacing — but fir is not oak and the job is not the same job. Its soft early wood sands away faster than its hard late wood, so a drum handled the way it would be on oak leaves a washboard that only shows under a low-angle light after the finish is on. Ask how many fir floors the installer has done, and ask how much thickness is left above the tongue before agreeing to a full sand.
Portland is the wet end of the wet side: 43.7 inches of rain spread over 163 wet days a year, and 26.8% of its houses built before 1940 against a 1966 median. Those two facts pull in the same direction. A house that old, in a climate that damp, will have spent eighty winters at an indoor humidity near the top of the range wood likes — which is why solid boards behave well here and why a wide plank that would be a gamble in Bend is an ordinary choice in Laurelhurst. It also means the floor may already exist. More than a quarter of this housing predates 1940, and in that era a Portland floor was usually vertical-grain Douglas fir. Pull up a corner of the carpet in a back bedroom before you price anything.
What it costs in Portland
Portland metro is the Oregon labor baseline, so the range below matches the statewide $3–$9. Installed, materials and labor together:
| Work | Portland range | Oregon range |
|---|---|---|
| Refinishing existing boards | $3 – $9 a square foot | $3 – $9 a square foot |
An estimate, not a quote. These are planning ranges for Oregon, not a quote. What you actually pay depends on your rooms, your subfloor and the material you choose.
Extras are where a Portland job most often moves away from the band: removing the old floor, prepping a plank subfloor, and stairs. The cost estimator prices those separately against your own room.
Questions worth asking before you book
- What is the subfloor, and what does it need? 26.8% of Portland homes predate 1940 and the median build year is 1966, so plywood or OSB is the likelier answer here and a plank subfloor is the exception worth ruling out. How to identify yours.
- Is the old floor coming out or being covered? Covering costs less and is sometimes the safer answer, but it costs you height at doors and at the bottom stair riser.
- What is the cut-and-waste allowance? Ten percent is normal; older or irregular rooms take more, and cuts are labor.
- What did the slab read, and what did the boards read? An installer who measured both has told you more than a classification code could. What Oregon licenses, and what it does not.