Whether you install flooring before or after kitchen cabinets depends primarily on the type of flooring you are using. For materials like hardwood, tile, and sheet flooring, the best practice is to install the flooring first. This ensures the cabinets are installed at the correct height and on a stable surface. However, you should not install cabinets on top of floating floors, such as laminate or luxury vinyl plank (LVP). These types of flooring need room to expand and contract with temperature and humidity changes. Placing heavy cabinets on top can restrict this movement, potentially causing the floor to buckle and making the cabinets unstable. For floating floors, install the cabinets first and then lay the flooring up to them. Other reasons to consider installing cabinets before the flooring include saving money on materials (since you won't need flooring under the cabinets) and avoiding potential damage to your new floor during cabinet installation. Additionally, installing cabinets directly on the subfloor might prevent voiding your flooring's warranty.

Hardwood floors can be installed in most areas of the home, including living rooms, bedrooms, and hallways. However, with the exception of high-quality bamboo and engineered wood, hardwood floors are not recommended for areas with high moisture levels, such as bathrooms and basements, unless specifically designed for such environments. It's essential to consider the specific conditions of each room before choosing hardwood flooring.

You can tell a carpet is good quality if it’s made of a soft, durable material and has a good face weight and density. When comparing two similar carpets, the higher the face weight, the more durable the carpet tends to be. The same goes for carpet density. A higher density of two similar carpets often indicates better quality. The ideal carpet face weight and density values depend on the carpet material and type. 

Yes, carpeted stairs are generally considered safer than stairs with hard surfaces like wood, vinyl, or tile. Carpet provides more traction and friction, which helps reduce the chances of slips and falls. Additionally, if a fall does occur, carpet offers more cushioning, which can lessen the severity of an injury. While hard surfaces can look great, they are often more slippery. However, it's worth noting that some carpets, especially if they are new, dirty, or have a slick texture, can also pose a slipping hazard. To improve safety on any type of stair surface, you can add traction treads to increase grip.