In the majority of applications dock levelers are installed in a recessed pit. Dock levelers can be installed external to the building in a free standing frame if there are any obstructions to prevent a pit being poured. The underground obstructions could be a water pipe, electrical line, etc. Another reason to consider a dock leveler in a free standing frame is limited floor space at the loading dock area.
Contact a Pentalift Sales Representative for more information.