A kitchen remodel can be an exciting renovation project that may involve knocking down walls, adding a kitchen island, and selecting everything from flooring to backsplashes to appliances. It’s usually a complex process with many components; you can easily overlook details that can result in major problems down the line—and may cause you to go over budget. So, we spoke with nine experts, including architects, designers, and flooring professionals to find the kitchen renovation mistakes you should avoid. From layout problems to budgeting errors, scroll down for 13 of their kitchen design deal breakers.