Home elevator shaft dimensions differ slightly by make and model of each elevator but typically measure 5’ x 4’. The elevator shaft, therefore, takes up 20 square feet of floor space, which allows for an elevator car size of approximately 15 square feet.
When home elevator size is discussed, it’s important to think in three dimensions. Floor space is important, of course, but so is the height of the elevator. Residential elevators are typically designed with two- to six-story homes in mind, and the American Society of Mechanical Engineers restricts a home elevator’s travel height to fifty feet or less.
In addition to the shaft, home elevators often require a pit beneath the shaft that is approximately 6 to 8 inches deep. Several of the most popular elevator models also require a machine room to house the elevator’s mechanical drive and controller. The minimum recommended size for a residential elevator machine room is 4.5’ x 5.5’.
An alternative to a machine-room powered elevator is a machine room-less elevator (MRL elevators). Instead of using a machine room, MRL elevator motors are housed at either the top or bottom of the hoistway, making this type of elevator ideal for small homes. You will want to consult your local elevator company, as not all jurisdictions allow the controller in the hoistway.