Sealing old hardwood floors under new kitchen cabinets is generally not necessary, and in most cases, it's not a standard practice. When kitchen cabinets are installed, they cover the majority of the hardwood floor, protecting it from everyday wear and tear, spills, and dirt. The cabinets act as a barrier and help preserve the flooring beneath.
Here are a few reasons why sealing the old hardwood floor under new kitchen cabinets is typically unnecessary:
Protection: As mentioned, the kitchen cabinets provide adequate protection to the hardwood floor by covering a significant portion of it. This protection prevents direct exposure to foot traffic and potential damage.
Stability: Hardwood floors are designed to withstand foot traffic and weight. When installed properly, they are sturdy and stable enough to support the weight of kitchen cabinets without any issues.
Moisture Barrier: If there are any concerns about moisture or spills, it's more practical to address them with proper sealing and maintenance in the areas surrounding the cabinets rather than under them.
Cost and Time: Sealing the entire area under the cabinets would involve additional expenses and time during the kitchen remodeling process. It's more efficient to focus on properly sealing the exposed areas around the cabinets.
That said, if there are specific areas where the hardwood floor is exposed (e.g., near the edges of the cabinets), it may be a good idea to seal those sections to ensure uniform protection and enhance the overall durability of the floor.
When installing kitchen cabinets over hardwood floors, it's essential to use proper installation techniques to avoid damaging the flooring during the process. This may involve using protective pads or shims to elevate the cabinets slightly and prevent direct contact with the hardwood.
If you have any concerns about the specific condition of your hardwood floor or the installation of kitchen cabinets, it's best to consult with a professional contractor or flooring specialist. They can assess your situation and provide tailored advice based on the type and condition of your flooring and the planned kitchen cabinet installation.