Lakeside 8559 Roll-In Cooler and Freezer RackThe Lakeside Manufacturing 8559 is a roll in rack designed for use in walk in coolers or freezers. It is made of light weight aluminum and welded for increased durability. The channel and angle style ledges specifically are continuously welded to the uprights. This allows it to withstand rugged use. The aluminum construction is rust and corrosion resistant. The roll in racks bottom has been reinforced to provide durability during offsite transport.