How Long Does It Take to Refinish Hardwood Floors?
Quick Answer
3–5 days for a typical room with professional refinishing. DIY takes 4–7 days. You can walk on the floors after 24–48 hours.
Typical Duration
Quick Answer
Refinishing hardwood floors in a typical room takes 3–5 days with a professional crew and 4–7 days as a DIY project. The process involves sanding (1 day), staining (1 day plus drying), and applying 2–3 coats of polyurethane with drying time between each coat. You can walk on the floors in socks after 24–48 hours, but wait 1–2 weeks before moving furniture back.
Professional vs DIY Timeline
| Phase | Professional | DIY |
|---|---|---|
| Room prep and furniture removal | 2–4 hours | 2–4 hours |
| Sanding (3 passes) | 4–8 hours | 1–2 days |
| Vacuuming and tack cloth | 1–2 hours | 1–2 hours |
| Staining (optional) | 2–4 hours + 24-hour dry | 3–5 hours + 24-hour dry |
| Polyurethane coat 1 | 1–2 hours + 24-hour dry | 2–3 hours + 24-hour dry |
| Buff/screen between coats | 1–2 hours | 2–3 hours |
| Polyurethane coat 2 | 1–2 hours + 24-hour dry | 2–3 hours + 24-hour dry |
| Polyurethane coat 3 (optional) | 1–2 hours + 24-hour dry | 2–3 hours + 24-hour dry |
| Total | 3–5 days | 4–7 days |
Drying Times Between Coats
| Product | Dry to Touch | Recoat Window | Full Cure |
|---|---|---|---|
| Oil-based polyurethane | 6–8 hours | 24 hours | 30 days |
| Water-based polyurethane | 2–4 hours | 4–6 hours | 14 days |
| Oil-based stain | 6–12 hours | 24 hours | 72 hours |
| Water-based stain | 2–3 hours | 4–6 hours | 24 hours |
Water-based polyurethane dries significantly faster, which can reduce total project time by 1–2 days compared to oil-based products.
When You Can Use the Floors Again
| Activity | Oil-Based Poly | Water-Based Poly |
|---|---|---|
| Walk in socks | 24–48 hours | 12–24 hours |
| Walk in shoes | 48–72 hours | 24–48 hours |
| Replace furniture (with pads) | 5–7 days | 3–5 days |
| Place area rugs | 2–4 weeks | 1–2 weeks |
| Full cure (safe for everything) | 30 days | 14 days |
Use felt pads on all furniture legs. Avoid dragging anything across the floor for at least 2 weeks.
The Sanding Process
Sanding is done in 3 passes with progressively finer grits:
- Coarse grit (36–40): Removes the old finish, stain, and surface scratches
- Medium grit (60–80): Smooths out the marks left by the coarse pass
- Fine grit (100–120): Creates a smooth surface ready for stain or finish
A drum sander handles the main floor area, while an edger reaches walls and corners. Professional-grade equipment cuts sanding time roughly in half compared to consumer rental machines.
Factors That Affect Project Duration
- Room size: A 200 sq ft room is the baseline; larger rooms add proportional time
- Number of coats: 2 coats is standard; 3 coats recommended for high-traffic areas
- Staining: Adds 1 full day to the project; natural (unstained) finishes save time
- Humidity and temperature: High humidity slows drying. Ideal conditions are 60–80°F with 40–60% relative humidity
- Floor condition: Deep scratches, pet stains, or water damage may require extra sanding passes
- Product choice: Water-based finishes dry 3–4x faster than oil-based
Tips for a Successful Refinish
- Seal HVAC vents and doorways with plastic sheeting to contain dust
- Remove all furniture, curtains, and wall hangings from the room
- Ensure good ventilation, especially with oil-based products (open windows, use fans)
- Vacuum thoroughly between every sanding pass and before applying finish
- Do not shake polyurethane cans – stir gently to avoid introducing bubbles