Both solid oak and engineered wood give you a real timber floor, and from standing height most people cannot tell them apart. The right choice comes down to your subfloor, your heating, and how your home behaves through a damp Jersey winter. Here is how we advise customers when we fit floors across the island.
Solid oak is exactly what it sounds like: each board is milled from a single piece of oak, typically 18 to 20mm thick. Engineered wood has a real oak wear layer, usually 3 to 6mm, bonded to a plywood or softwood core. Once fitted and finished, the surface underfoot is genuine oak in both cases.
The difference is in how each one behaves. Solid oak moves with moisture and temperature, expanding across the width of the board. The layered core of an engineered board resists that movement, which is why it can go in places solid timber cannot.
Jersey homes see big humidity swings: damp sea air for much of the year, then central heating drying everything out from November to March. Solid oak responds to this by swelling and shrinking, and in older granite properties with solid floors or suspended timber over ventilated voids, we sometimes see gapping in winter or slight cupping in summer if the boards were not acclimatised properly before fitting.
Engineered boards shrug most of this off. That stability is also why engineered is the only sensible choice over underfloor heating, which we are fitting more and more in renovations and extensions. Solid oak over UFH is a risk most manufacturers simply will not warranty.
On materials, decent engineered oak typically runs from around £35 to £70 per square metre, with solid oak often £45 to £90 depending on grade, width and finish. Wide rustic boards and character grades push those figures up, and shipping to the island adds a margin you would not see on mainland prices, so treat these as ballpark ranges rather than quotes.
Where solid oak earns its keep is lifespan. A 20mm solid board can be sanded and refinished six or more times, which is comfortably a century of use. A quality engineered board with a 4 to 6mm wear layer can still be sanded two or three times, giving you 40 to 60 years in a normal household, but a budget board with a 1 or 2mm wear layer may never take a proper sanding at all. That thin wear layer is where cheap engineered flooring falls down, and it is the spec we check first.
Solid oak should be fixed down, either secret nailed to joists or battens, or fully glued to a sound concrete slab. It takes longer, and the acclimatisation period means we deliver the boards a week or two before we start. Engineered can be glued, nailed or floated over an underlay, which makes it quicker to fit and usually cheaper on labour.
In St Helier's older terraces we often find uneven subfloors, old bitumen adhesives or minimal damp proofing under the existing boards. Whichever flooring you choose, sorting the subfloor and checking moisture levels first matters more than the solid versus engineered decision. A moisture reading above roughly 65 per cent relative humidity in a concrete slab means we wait or fit a barrier, not press on.
If you own a period property with sound suspended timber floors, want the longest possible lifespan and do not mind the extra fitting time, solid oak is a lovely, buy it once decision. If you have underfloor heating, a concrete subfloor, a kitchen diner, or you simply want the same look for less disruption, engineered oak with a wear layer of at least 4mm is the better all rounder.
For most of the jobs we quote in Jersey today, engineered wins on practicality. But it is not a downgrade; it is the same oak surface built to cope with modern heating and island humidity. If you are unsure which suits your subfloor, a quick site visit and a moisture reading settles it before any money is spent.
We would advise against it, and most manufacturers will not warranty it. The heat cycles cause solid boards to shrink and gap or cup over time. Engineered oak is designed for exactly this situation.
A good board with a 4 to 6mm wear layer typically lasts 40 to 60 years in a family home and can be re-sanded two or three times. Boards with wear layers under 3mm cannot really be sanded, so check that spec before buying.
Timber takes on or releases moisture until it matches the room it sits in. Fitting boards straight off the delivery van in Jersey's humid climate risks gaps or cupping later, so we leave solid oak on site for one to two weeks before fixing it down.