What is the difference between a bed frame and bed rails?
On this website, the term "bed rails," refers to an angle iron* support used to attach a headboard to a footboard, thereby supporting a box spring and mattress.
The term "bed frame" can be used to describe any type of bed or its framework. On this website, we use the term "bed frame" to describe a specific type of angle iron* frame
used to support your mattress and box spring. In this sense, bed frames are also commonly called Hollywood bed frames, box spring frames, or metal bed frames. Unlike bed rails, a bed frame fully supports your mattress and box spring. Bed rails require the use of a headboard and a footboard to support your mattress and box spring.
*Angle iron is a length of steel or iron bent at a
right angle along its long dimension, used as a support or structural framework.