Solid wood represents a homogenous construction of wood. The product expands 30% more then engineered wood and therefore these products are seasoned well to allow for such expansion.
Installation of solid wood is very important and one should ensure that the planks are never nailed to ply, etc because this hampers the natural expansion and contraction of the wood and causes warping. This technique is used basically for unseasoned wood where people are unsure of how the product will expand and contract with seasons.
Solid wood flooring comes pre-finished. The product comes with seven coats of formaldehyde-free, acrylic lacquer; add which is uv-cured so that the product does not get dusty, stain or scratch easily.