If you own a stepvan, Mill Supply has the Whiting replacement parts for your roll-up door. Whiting is one of the leading manufacturers for roll-up door hardware in the walkin van industry. Mill Supply's extensive Whiting inventory includes: hinges, rollers, latch assemblies, catch plates, counterbalance shafts and springs, cables, winding cones and seals. You can also order a complete door; click here to download the ordering information we need from you to order your door. Click on one of the pictures above to jump into our on-line catalog for Whiting Roll-up door parts. Once you are there you will find we carry the complete line of replacement parts for Whiting and Todco roll-up doors.