Height ranges vary widely by model. Examples from the category include roughly 19.37–27.6 inches (compact mobile desks), 23.64–35.46 inches (overbed/bed tables), about 27.9–46.8 inches (electric standing desks), and other ranges such as 26.77–35.63 inches, 28.5–49.5 inches, or 29.6–44.2 inches.
Typical surface materials are wood, MDF (medium-density fiberboard), and wood composite. Many listings explicitly list options such as “Surface Material: Wood,” “MDF (Medium-Density Fiberboard),” or “Wood Composite.”
Desktop footprints range from compact to full standing tops. Examples include about 23.6 × 20.5 inches or roughly 31.5 × 15.7 inches for compact models, up to larger tops such as 48 × 24 inches or 55 × 24 inches.
Locking options differ by design: some models have four fully lockable casters, some use two braked wheels and two free wheels, and others simply note a general wheel-locking mechanism (for example, overbed tables that let you "lock the wheels").
Beyond height adjustment, many mobile desks provide tilt-adjustable desktops, multi-platform setups with independently adjustable shelves or tilting boards, and overbed tables that can also adjust length as well as tilt.
