What is the most common distance between hot and cold water supply connections for a kitchen sink faucet?

The most common distance between hot and cold water supply connections for a kitchen sink faucet is 8 inches. This measurement reflects standard plumbing practices that have been adopted in residential construction. The 8-inch spacing allows for compatibility with a wide range of faucet designs, which typically feature handles positioned a set distance apart for ease of use.

This standardization also facilitates installation and replacement, as many sinks and faucets are designed to fit this common distance, minimizing the need for custom plumbing solutions. The choice of 8 inches strikes a balance between usability and adaptability for different faucet styles, ensuring that homeowners can find compatible fixtures readily available in the market.

Overall, this standard has become widely recognized in plumbing codes and manufacturer specifications, making it the most expected distance in residential kitchen sink configurations.