Loading car and transfer carriage for use with sterilizers having a 24x36x48 chamber. Loading car is a welded, CRS framework with two full-length adjustable shelves of CRS welded sheet metal and wire. Transfer carriage is constructed of a welded CRS or painted for corrosion protection frame and provided two fixed and two swivel casters. Loading car is secured to the transfer carriage by a locking mechanism. For loading and unloading 24x36x48 sterilizers and for transferring goods to and from processing areas.