3mm is the ideal middle - for those who wish to save money, but get higher quality; for those who don't have too low footfall, but perhaps have 2 people living in their home; and for those who wish to furnish lesser used rooms with a floor just as beautiful as the rest of the home. There are a large range of floors to choose from considering this option is quite popular, so sit back and browse, and order as many free samples as you need to.