alaco ladder company manufactures a wide range of ladders for a multitude of applications. fixed access aluminum ladders are used for gaining access to roofs, mezzanines, storage lofts and roof hatches. ladders are available in fixed, folding, ships and retractable models and meet ansi and osha requirements for quality and safety. rolling track wood ladders are used for residential and commercial applications, for access to bookshelves, cabinets, lofts and display or storage areas. rolling ladders are available in a variety of natural woods. special purpose ladders are available in aluminum, wood or fiberglass, for everything from fire trucks to window washing to produce picking. they are used for a number of industries, from agriculture to aviation.arcat specwizard. smart spec writing system creates alaco's specs quickly and accurately. for access to roofs, mezzanines, storage lofts and roof hatches.