Kits are offered for horizontal (side-fold) and vertical (wall-bed) installations and typically use either a 5-spring or a 9-spring mechanical system.
Reported load capacities for these kits range from about 551 lb (250 kg) up to 992 lb (450 kg).
Horizontal (side-fold) kits list compatibility for widths roughly 35.4–47.2 in (0.9–1.2 m), covering twin up to queen sizes. Vertical (wall-bed) kits list compatibility for wider mattress widths around 47–70 in (1.2–1.8 m), covering queen up to king sizes.
The hardware and frames are described as constructed from iron and stainless steel, with listings noting weighted iron components paired with sturdy stainless-steel parts.
Typical kits use either a 5-spring or a 9-spring arrangement. Changing the number or arrangement of springs lets you alter the lift tension to better match the mattress weight.
Listed kit dimensions vary by model: heights about 6–13.4 in, widths about 10–28.5 in, and depths about 14–38 in. Kit weights typically range from roughly 13 to 24.2 lb.
Packages typically include the springs/hinges, supporting legs, and a pack of installation accessories (fasteners and small hardware).
These kits are positioned for small or multiuse spaces such as apartments, lofts, hotels, guest rooms, and other compact rooms where a fold-away bed is beneficial.