A full-size box spring, which is also known as a "double," is usually constructed of many metal springs surrounded by a wooden frame. When placed underneath a similar size mattress, the sturdiness of a full-size box spring helps to create a comfortable bed.
The dimensions of a full-size box spring vary depending on whether it's a low- or high-profile version. The lower versions are approximately 5 1/2 inches in height, while the high-profile version is a standard 9 inches in height. The difference between the low and high profiles is purely ascetic. The width of a full-size box spring is 53 inches, just 15 inches more than a twin, or single size.
According to Dimensions Guide, in general, full-size box springs serve three basic purposes. They work to create a flat surface, sturdy enough to place a mattress on top, act as shock absorbers, and help raise the mattress height, making it easier to get in and out of bed. A full-size box spring also helps to expand the surface area and provides further support.
At 75 inches long, a full-size box spring is the same length as a twin size. This measurement, however, is often the deciding factor when choosing between full and queen-size box spring sets, (a queen-size bed is 80 inches long). This relates particularly to men, who are typically taller. If sharing a full-size bed, each person would have 27 inches to themselves, which is the approximate width of a baby crib.
- Photo Credit bed image by Leonid Nyshko from Fotolia.com
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