The Regular 9" box spring height is the same as a traditional mattress box spring. If you're looking for the same size box spring common in mattress sets, then this one is the one for you. If you decide to order a much taller mattress then you currently own, it's very important for you to keep in mind that your bed will be sitting much higher. Supposing that you order a taller mattress and want to keep your bed height from getting to tall you might want to consider a Low Profile box spring.
As the mattresses have become much taller the Low Profile 5.25" box spring has become more popular. Over the years, people tend to choose a taller mattress because it provides them with greater comfort and support. Mattress manufacturers responded to the demand for bigger mattresses, as well as, creating a complimentary Low Profile box spring to help keep the total bed height reasonable. This makes getting in and out of bed a lot easier. Low Profile box spring provides you with exactly the same the support and durability as the Regular 9" box spring.