Box springs are available from multiple retailers, including Sears, Wal-Mart and Amazon. Online retailers that have box springs only available for sale include SleepHappens and US-Mattress.
SleepHappens offers several types of box springs as of 2015. Models include the Mattress Tech Cal King Box Spring Only, Royal Silver Box Spring Only and Serta Box Spring Only. At US-Mattress, buyers can choose from several brands and get free in home set up for most models. Free delivery is also available for box springs only. The models available at Wal-Mart and Sears vary from a store to another.
Also known as bed foundations, box springs only are a good choice for those who already own a mattress and are looking for a base for their bed. Box springs are available for all bed sizes, including Twin, Full, Queen and King beds. Some of them have split foundations and some of them are adjustable, giving the user the possibility to adapt it to his mattress. Most bed foundations feature a non-skid top that prevents shifting. For larger sized beds such as King and California King beds, the box spring often comes in two pieces to make it easier for the user to move it around and set in on the bed.