At the top of engineered is a slice of wood species where you’ll see knots, grains, swirls, undertones. Underneath are three or more layers of genuine wood combined with a little resin. Then the layers are placed on a crosswise position. With engineered, there is more flexibility, since it can be installed in some higher-than-normal moisture areas where solid isn’t recommended.
Both types add value to your home and can be sanded and refinished. Solid has a tongue and groove installation which is then is nailed or glued. Engineered also offers the floating floor technique. Pieces click together like a tongue and groove to form a mat. Then it becomes a loose lay, just hovering over the existing subfloor with no staples, nails, or adhesive needed. Thickness is also something important to note for both types. This determines how many times either solid or engineered can be sanded and refinished. The thicker is better. The ideal for solid is ¾-inch and engineered ranges from ⅝ to ½-inch.