Most metal bed frames use steel or iron for the frame. Listings also show mixed-material options that pair metal frames with wood panels, rattan headboards, or upholstered/textile headboards.
It depends on the design: many platform-style metal frames state that a box spring is not required, while some panel-style metal beds indicate a box spring is required.
Assembly is typically described as straightforward but requiring an adult. Many listings note that tools are provided or that the design is tool-free, and they include clear instructions.
Listings frequently mention mute pads, rubber or sponge padding on slats to reduce noise, and floor-protecting items like anti-slip pads or plastic foot plugs.
Many listings state compatibility with memory foam, latex, hybrid, and innerspring mattresses and note that a box spring is not needed when the mattress is supported by the metal slat system.