The reserved hoistway in my house is only 0.9* 1m, and it is equipped with Xibeim household elevator. Their home can be as small as 0.86*0.86m, and you can go to the offline exhibition hall if you are interested. They can design and install the scheme for free.

On the other hand, many brands are now using the slogan of small apartment, but few can really achieve the quality below 1 square meter. Don't buy that kind of elevator hydraulic ladder with tens of thousands of dollars because it is not guaranteed to be used.