Lighter than most high/low beds, the EX swiftly and quietly moves straight up and down from 7.5" to 28". A built-in sensor in the control box communicates with the actuators to keep it level at all times, while the new safety lock option makes it one of the safest beds on the market. This bed has an Integrated Deck Expansion System, tool-less expansion of bed width from 36" to 39" to 42" through a simple pull of a button, and 80" to 84" in length.