Flexibility is the most important factor that you have to consider while deciding on the type of floor for your new custom house. There are many different types of flooring available and each type has its own pros and cons. It is not recommended to get attached to one type of flooring. For example, you may like granite a lot and you would want to have granite flooring for your custom home no matter what. Being adamant while deciding the flooring is a bad idea. Granite is definitely good but it is not without negatives. First of all, granite is an expensive material and it can raise up the overall construction budget of your custom house. Similarly, you cannot get stuck with tiles just because they are less expensive. Maintaining a floor made up of tiles is arduous. Also, tiles many not make your home look good.
Your goal is to have the best custom house for your family, not the best flooring for your house. Being flexible is very important. You should always think about the larger picture and make the right decision. If you are not sure about something, it is better to consult with an expert. You might also want to have a discussion with your custom house builder.