Standard 9” Box Spring
This is the traditional height of a box spring. If you aren’t looking to change the height of your box spring this is the foundation that you are looking for. Keep in mind though many mattresses these days are thicker to provide additional layers of comfort and support. So if you purchase a thicker mattress, and still use the standard height box spring your bed height will rise. If you are worried about your bed height getting to high the lower profile box spring is probably the better option.

 

5 ¼” Low Profile Box Spring
Newer mattresses tend to have a thicker profile so that they can offer new levels of additional comfort and support. Which is great for your nights sleep, but it also increases your bed height. To ensure your bed does not get too high, many are switching over to the low profile box spring. The low profile box spring provides the exact same amount of support for you and your mattress, its just shorter and can offset the additional inches your new mattress will add to your bed height.