Solid vs engineered hardwood.

Solid hardwood is exactly what it sounds like: every board is one piece of wood, usually 3/4 of an inch thick, milled with a tongue on one edge and a groove on the other so the boards lock together. It is nailed down to a wood subfloor, which is the plywood or boards the finished floor is fastened to. Because the whole board is wood, you can sand it down and refinish it again and again, and that is the single biggest reason people choose it.

Engineered hardwood is built in layers. The top layer, the one you see and walk on, is real hardwood such as oak, walnut or hickory. Underneath it is a plywood core with its layers turned in different directions. That cross-layered core is what makes engineered wood stable: it swells and shrinks far less than a solid board when the humidity or temperature changes. The top layer is typically 3mm to 6mm thick, and that thickness decides how many times the floor can be sanded later.

What engineered is not: it is not laminate, and it is not vinyl. Laminate and vinyl are printed images of wood under a plastic wear surface. Engineered has a real wood face, takes stain and finish like real wood, and reads the same as solid plank once it is installed.

The honest reason to choose engineered over solid is almost never looks. It is moisture. Solid wood swells when it takes on moisture and shrinks when it dries out. Nailed over a concrete slab, laid in a basement, or run over a floor that heats and cools every day, solid boards can cup, curling up at the edges, or buckle, lifting off the subfloor. Cupping and buckling are almost always a moisture story rather than a wood-selection story.

Engineered wood's cross-layered core resists that movement, which is why it is our recommendation over concrete, in basements, and over radiant floor heat. We have installed engineered over hot-water radiant heat on Cape Cod and the South Shore for years. In those rooms, solid hardwood is simply the wrong specification, and we will tell you so at the estimate rather than install it and hope.

Before any engineered job we take a moisture reading: a moisture test on a concrete slab, or a humidity reading on plywood. The numbers go on your written proposal. They decide the install method, and if the readings rule out wood altogether, as in a basement that floods, we will point you to luxury vinyl plank, which is 100% waterproof, instead.

With us, labor for both solid and engineered hardwood starts at $10 per square foot. Engineered installed over a concrete slab adds roughly $4 per square foot for the glue-down adhesive, which we include on top of labor. Pre-finished plank starts at $5 per square foot for labor, and luxury vinyl plank at $6. These are starting labor rates set by the owners for 2026; material is always quoted separately, and the final number is set after the in-home visit.

Material is where species and board width move the price. For reference, a 2026 industry cost guide from D&G Flooring puts red oak strip material at about $3.50 to $6.00 per square foot and white oak at $4 to $7, with wide boards adding $1 to $4 more. Wide-plank looks are where engineered often saves money: engineered makes 7 to 9 inch wide boards achievable in homes where solid wide plank would break the budget.

The cheapest floor over its whole life is usually the one you never have to replace. A solid floor you can refinish 4 to 5 times can outlast several cheaper floors, while an engineered floor put in the right room avoids the cupping repair a solid floor in the wrong room would need. We put both numbers side by side on a written, itemized proposal within 48 hours of the visit.

Older homes: in pre-1960 houses we routinely find original pine boards under the floor, with hardwood nailed straight to them. For living rooms, bedrooms and hallways in these homes, solid hardwood matching what is already there is usually the right answer, and very often the best first step is refinishing the original oak rather than replacing it.

Post-war ranches and capes, and newer builds, usually have plywood or oriented strand board under the floor. Solid hardwood is the natural fit above ground. Finished basements and rooms built on a concrete slab, which are common in newer additions, call for engineered or vinyl plank.

Cape Cod and coastal homes add humidity and, often, radiant heat and vacation-home schedules. Engineered is frequently the better fit there, and pre-finished boards help when you cannot be at the house for sanding days. Commercial spaces are their own case: we finish them with commercial-grade water-based polyurethane and work after hours so the business stays open.