It is difficult to compare solid wood flooring to engineered wood flooring due to the wide range of quality in both product categories, particularly engineered. Solid wood has some limitations. Recommended maximum widths and lengths are typically 5" / 127mm wide and 7' / 2100mm long. Solid hardwood is also more prone to "gapping" (excessive space between planks), "crowning" (convex curving upwards when humidity increases) and "cupping" (a concave or "dished" appearance of the plank, with the height of the plank along its longer edges being higher than the centre) with increased plank size. Solid wood cannot be used with underfloor radiant heating. However extra care is necessary with the planning and installation of the heating system and the wood flooring, such as limiting the temperature to 85 °F (29 °C), avoid sharp temperature fluctuations, utilizing an outdoor thermostat to anticipate heating demands, and monitoring the moisture content for the subfloor before installation. Denver Hardwood Floor Install
Another common hardwood floor malady is the development of gaps between planks. The most common causes of gaps between the boards is Mother Nature. Wood shrinks as it dries out, and it expands when it gets wet and humid. That regular expansion and contraction over time is the most common cause of gaps, and is the main reason why most gaps are seasonal in nature. Perhaps your best plan of action is to exercise patience.
It can be sanded down and refinished five, six, even seven times. And, if maintained properly, you won’t have to do it for 20 years. Refinishing a floor may be messy and troublesome, but most homeowners learn to live with it. After all, it costs five times as much to replace hardwood floors than it does to refinish them. For some people that is reason enough. Hardwood Floors
If your floor has noticeable scratches throughout, your best option is to sand down the floor and refinish it. A complete sanding removes scratches, but beware: This only works on real wood floors, not bamboo. If you have an engineered wood floor with a real wood surface, make sure the real wood surface is more than 1mm thick—sanding usually takes at least this much wood off the surface, so a thicker layer is required for a complete sanding.
Regardless of the floor, the protective finish will play a large role in how scratch and stain resistant it is. Both hardwood and Rigid Core flooring are available with various types of protective finishes. Rigid Core flooring goes a step beyond hardwood though, and also has a transparent solid wear layer that protects against gouging and deeper scratches. Denver Hardwood Floors