Function Plus is Milliken’s opening price point backing option. It is a great choice where budgets are tight, and acoustics and comfort are not so vital. Function Plus has basic underfoot comfort and acoustic performance as provided by a soft textile surface versus a hard floor covering, yet still comes with a 10-year wear guarantee. While its unique makeup offers enhanced dimensional stability, even though its 10% lighter than other hardback carpet tiles. It also means carpet tiles with this backing are more flexible and easier to install.