Understanding the two options

Choosing between solid wood and engineered wood planks is one of the most common dilemmas for UK homeowners. Both bring real timber into your home, but they behave differently when the heating goes on and the British weather does its worst. Solid wood is cut from a single piece of timber, usually 18–20mm thick, whilst engineered planks are built from a plywood or high-density fibre core topped with a genuine wood veneer, typically 2–6mm thick. That construction difference shapes everything from cost to how well each floor copes with humidity and underfloor heating.

What solid wood planks bring to a room

Solid wood offers a depth and character that few materials can match. Each board is unique, with grain and knots that develop a rich patina over time. Because the wear layer is the full thickness of the board, you can sand and refinish it many times—often every 10 to 15 years—making it a genuinely long-term investment. It feels solid underfoot and adds real value to period properties.

However, solid wood is sensitive to moisture. It expands and contracts with changes in humidity, which can lead to gaps between boards in winter and slight cupping in damp conditions. It is not usually recommended for underfloor heating, and it needs careful acclimatisation—ideally 3–5 days in the room where it will be laid. Installation is typically by secret nailing or screwing to a timber subfloor, or gluing to a concrete subfloor with a suitable adhesive. Floating solid wood is possible but not ideal, as the boards need to move.

How engineered wood planks perform in UK homes

Engineered planks are designed to resist the humidity swings that are common in British homes. The cross-ply construction counteracts the natural movement of wood, so the floor stays flatter and more stable. That makes engineered wood a smart choice for kitchens, hallways, and rooms with underfloor heating. Many engineered floors can be floated over a suitable underlay, glued down, or installed with click-lock systems, which speeds up the job and reduces mess.

The trade-off is a thinner wear layer. A 4mm veneer might only tolerate one or two sandings over its lifetime, whilst a 2mm veneer may not be sandable at all. If you want the look of real wood with fewer worries about seasonal movement, engineered is often the practical answer. It also tends to cost less than solid wood of the same species, though high-end engineered planks with thick veneers can approach solid wood prices.

Cost, stability and installation compared

When you are weighing up your options, focus on four practical factors: cost, stability, installation method, and long-term maintenance.

• Cost: Solid wood typically costs £40–£100 per square metre for the boards alone, before installation. Engineered wood ranges from £25–£80 per square metre, with the wear layer thickness driving the price. Budget for underlay, adhesives, trims, and skirting boards too.
• Stability: Engineered wins hands down in rooms with fluctuating humidity or underfloor heating. Solid wood is best in rooms with stable conditions and a well-controlled environment.
• Installation: Solid wood requires a skilled fitter, a solid subfloor, and often nailing or gluing. Engineered planks can be floated, glued, or clicked together, making them more DIY-friendly and quicker to install. Always check the manufacturer’s instructions for your specific product.
• Maintenance: Solid wood can be refinished multiple times, so it can last 50 years or more. Engineered wood may last 20–30 years, depending on the veneer. Both need regular cleaning with a damp mop and pH-neutral cleaner—never a soaking wet mop.

Practical advice for a successful installation

Whatever you choose, preparation is everything. Start by testing your subfloor for moisture—a simple hygrometer test can save you from a buckled floor later. Ensure the subfloor is clean, dry, flat, and structurally sound. For concrete, a moisture barrier is essential. For timber, check for loose boards and fix any squeaks.

Acclimatise your planks in the room for at least 48 hours (solid wood needs longer). Keep the heating off during this time and maintain normal indoor humidity, ideally 40–60%. Leave an expansion gap of 10–15mm around the perimeter, covered by skirting or beading. If you are installing over underfloor heating, use an engineered product rated for it, and bring the heating up to temperature gradually over several days.

Think about the room’s use. Hallways and kitchens benefit from a harder, more moisture-resistant finish. Bedrooms and living rooms can happily take solid wood if the environment is stable. If you have pets or children, a brushed or oiled finish hides scratches better than a high-gloss lacquer.

Long-term maintenance and refinishing

Both floor types need care, but the approach differs. Solid wood can be sanded back to bare timber and refinished with oil, hardwax oil, or lacquer. This is a dusty job, so many homeowners hire a professional. Engineered wood with a thick veneer (4mm or more) can also be sanded, but you must be careful not to go through the veneer. For thinner veneers, use a renovating kit or a screen-and-recoat system instead.

Keep the humidity in your home between 40% and 60% using extractor fans, trickle vents, or a dehumidifier in damp months. Wipe up spills promptly, use felt pads under furniture, and avoid dragging heavy items across the floor. With the right care, a solid wood floor can be a lifetime purchase, whilst a good engineered floor will give you decades of warmth and character.