How long do hardwood floors last?
Updated August 2026
Hardwood floors last 25–100 years, longer than almost anything else in the house, and solid wood can be sanded and refinished 7–10 times, which is why a cared-for floor routinely outlives the people who installed it. The wide range is really two different products. A 3/4-inch solid plank has enough wood above the tongue to refinish for a century, while engineered flooring rides a thin veneer over plywood and taps out at 20–40 years because you can only sand it once or twice. What separates a floor that reaches 100 from one that fails at 25 is refinishing before the finish wears through and keeping moisture out from underneath.
Lifespan by type and situation
| Type or situation | Typical lifespan | Why |
|---|---|---|
| Solid hardwood (3/4 inch) | 50–100+ years | Thick enough to sand and refinish 7–10 times over its life |
| Engineered hardwood | 20–40 years | A thin veneer over plywood; refinishable only 1–3 times |
| Bamboo | 20–25 years | Marketed as tough but softer than oak; dents show sooner |
| Refinished on schedule | 100+ years | Sanding to bare wood every 7–10 years resets the clock |
| Never refinished | 25–40 years | Once the finish wears off, the raw wood grays and erodes |
| Chronic moisture or humidity swings | Cut in half | Cupping, gapping, and buckling are what kill wood floors early |
Signs yours is near the end
- The finish worn through to bare, graying wood along the main walk paths
- Deep scratches and gouges that cut past the finish into the wood itself
- Boards that cup (edges higher than centers) or crown from moisture
- Winter gaps between boards that do not close back up in humid months
- Springy, squeaky, or loose boards underfoot from failing fasteners
- Water stains that have turned black, meaning moisture reached the wood
How to add years
The trick is to renew the finish, not the floor. A screen-and-recoat, a light scuff and fresh top coat with no deep sanding, costs about $1–2 per square foot and can be repeated many times to hold off the full refinish. Save the full sand-and-refinish (roughly $3–8 per square foot) for every 7–10 years, or when the finish has actually worn through. Between those, keep indoor humidity in the 30–50% band so the wood does not swing between cupping and gapping, put felt pads under furniture, lay runners in the busy lanes, and sweep or barely-damp-mop rather than flooding the floor. Because refinishing costs a fraction of the $6–15 per square foot to replace, the math almost always favors saving the boards. The full routine lives on the hardwood floors maintenance checklist.
What it costs to replace: plan on $6–15 per square foot installed; refinishing runs $3–8 per square foot. Replacing on your own schedule, before it fails, is almost always cheaper than the emergency version. The home maintenance cost calculator helps you set the money aside before it comes due.
OnOtto tracks your hardwood refinishing age and service history, and warns you before end of life instead of after the flood.
Track your home's systems, free for 30 daysFrequently asked questions
How many times can hardwood be refinished?
A 3/4-inch solid plank can take 7–10 full refinishes, because each sanding removes only about 1/32 of an inch and there is a lot of wood above the tongue-and-groove. Engineered flooring is limited by its wear layer: a thin 0.6-millimeter veneer may allow zero real sandings, while a thick 4–6 millimeter layer can handle 1–3. Screen-and-recoats, which do not sand into the wood, can be done far more often. Once you sand into the tongue on solid wood, the plank has reached the end of the line.
How often do hardwood floors need refinishing?
A full sand-and-refinish comes around every 7–10 years, sooner (5–7) in a high-traffic home with pets. In between, a screen-and-recoat every 3–5 years lays a fresh protective top coat without sanding and stretches the interval considerably. The real trigger is the finish, not the calendar: do the water-drop test, and if a few drops soak in and darken the wood rather than beading on top, the finish has worn through and the wood is now exposed to wear and stains. Recoat before that point and you rarely need a full refinish.
Are engineered floors as durable as solid hardwood?
The surface can be just as hard, since the top veneer is real wood with the same finish, but the lifespan is shorter because you cannot refinish it many times. Solid wood reaches 50–100+ years; engineered typically runs 20–40. Engineered wins in one place: it is far more stable over concrete slabs, basements, and humid climates, where solid wood would cup and gap. If you want a floor to outlive the mortgage and be sanded for the next owner, solid wood is the pick; for a basement or a slab, engineered is the safer build.
Do hardwood floors add value to a home?
Yes, consistently. Hardwood is one of the few flooring choices buyers actively pay a premium for, partly because it can be refinished instead of torn out, so it reads as a decades-long asset rather than a wear item. If your floors are dull but structurally sound, a refinish at $3–8 per square foot restores them for far less than the $6–15 to install new, and it is one of the higher-return moves before a sale. Wall-to-wall carpet, by contrast, is usually seen as something the next owner will replace.