The benefit of fehr topstacker lies in the fact that it is extremely easy to integrate into existing warehouses. A basic area of 7 x 25 metres is all that?s needed for between 300 and 400 cassette spaces. fehr topstacker can easily grow with requirements because its modular design means that the number of cassettes may be easily extended at any time. And because they?re self-supporting, the cassettes are ideally suited for internal transportation tasks within plants.