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Lay solid hardwood.
Solid oak, walnut or ash — secret-nailed to joists or batten-fixed, hand-finished after sand and stain.
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Costs, timelines, pitfalls and the right questions to ask before any flooring starts on solid Hardwood Flooring.
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Seasonal movement
Solid wood swells 1–2% in summer, shrinks 1–2% in winter. Visible gaps appear in winter — that's normal, not a defect.
UFH incompatibility
Most solid wood is not UFH-rated. Use engineered for UFH.
Cupping or crowning
Subfloor moisture too high before laying. Always test with a moisture meter.
Nail-popping
Cheap nails or wrong angle pop through the surface over time. Use proper 50mm cleats at the correct 45° angle.
Costs & timeline
Know what it costs. Know when it ends.
Indicative UK ranges and what affects price.
Cost range
By job type
Inc. VAT · 2026
Source: NMT quotes
Source: NMT quotes
Solid oak boards per m²18mm × 130mm
£35–£90/m²
Solid walnut/cherry per m²Premium species
£70–£140/m²
Reclaimed pine boards per m²Victorian or pitch pine
£45–£110/m²
Solid oak parquet per m²Herringbone, chevron
£55–£140/m²
Subfloor prep & battensPer m², where needed
£15–£40/m²
Install secret-nail per m²Skilled work
£20–£45/m²
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Quote spread is typically ± 18% — always get 3 quotes.
At a glance
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Flooring explained
Solid hardwood is the heritage gold standard for UK flooring. Real oak, walnut or maple, milled into tongue-and-groove boards 18–22mm thick. Expect to pay £45–£180 per m² fitted depending on species, board width, and finish. Lasts 80–100+ years with the right care.
What Does the Work Involve?
Solid wood is heavier and less dimensionally stable than engineered. Install methods: secret-nail (traditional, onto joists or battens — the classic method), glue-down (onto concrete subfloor with elastomeric adhesive), or floating (less common, only narrow boards). The room must be at 18–22°C and 40–60% humidity for 7+ days before laying. Boards are sanded after laying (if not pre-finished) and oiled, waxed or lacquered.
Typical Costs
| Item | Low (£) | High (£) | Notes |
|---|---|---|---|
| Solid oak boards per m² | 35 | 90 | 18mm × 130mm |
| Solid walnut/cherry per m² | 70 | 140 | Premium species |
| Reclaimed pine boards per m² | 45 | 110 | Victorian or pitch pine |
| Solid oak parquet per m² | 55 | 140 | Herringbone, chevron |
| Subfloor prep & battens | 15 | 40 | Per m², where needed |
| Install secret-nail per m² | 20 | 45 | Skilled work |
| Sand and finish per m² | 15 | 40 | Three coats hardwax oil |
How Long Does It Take?
20 m² room: 2–3 days laying, plus 1 day sanding and finishing. Acclimatisation: 7+ days. Total project: 10–14 days from delivery.
DIY or Professional?
Professional. Secret-nailing solid wood requires a pneumatic flooring nailer (hire £30/day), and the boards must be planed and shimmed to fit. Sanding and finishing requires a hired drum sander and experience to avoid swirl marks.
Choosing the Right Tradesperson
A wood flooring specialist (not a general fitter). Ask the species and grade — Prime oak (almost no knots, premium) vs Rustic oak (knotty, character grade). Confirm finish: hardwax oil is the modern standard; lacquer is glossy and harder to patch.
UK Regulations
Building Regs Part E (acoustic) in flats. Solid wood alone doesn't meet the required dB rating — acoustic underlay layer needed beneath. Listed buildings often require like-for-like timber replacement.
Common Problems
- Seasonal movement: Solid wood swells 1–2% in summer, shrinks 1–2% in winter. Visible gaps appear in winter — that's normal, not a defect.
- UFH incompatibility: Most solid wood is not UFH-rated. Use engineered for UFH.
- Cupping or crowning: Subfloor moisture too high before laying. Always test with a moisture meter.
- Nail-popping: Cheap nails or wrong angle pop through the surface over time. Use proper 50mm cleats at the correct 45° angle.
Frequently Asked Questions
Why is solid wood so expensive vs engineered?
Engineered uses a thin top layer of real wood over plywood; solid is real wood all the way through. Solid takes more wood, costs more to mill, and is heavier to ship.
Can solid wood be used with UFH?
Most cannot. Some narrow-board solid woods (110mm wide max) are UFH-rated; check manufacturer's spec sheet. Engineered is the safer choice for UFH.
How long does solid wood last?
80–100+ years with care. Can be sanded and refinished 5–8 times over its lifetime — essentially indefinite if maintained.
Reclaimed wood — worth it?
Yes for character — Victorian pine, pitch pine, oak from old barns. Costs similar to new prime oak. Inspect for woodworm and old nails before buying.
Prime vs rustic grade oak?
Prime is clean — almost no knots, even colour. Rustic has knots and colour variation — characterful. Personal preference; rustic is cheaper.
How wide can solid boards be?
110–180mm is standard. Above 180mm wide boards become unstable — engineered is better for wide-plank looks.
This guide was written with AI assistance and is intended for general information only. Prices are estimates based on UK averages and may vary by region. Always get at least three quotes and consult a qualified professional before starting any work.
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