Welcome to the industry's premier source for elevator cabs and entrances -- no matter what the application, budget level, turnaround need or site-difficulty. Every product manufactured at Columbia (including cabs -- a Columbia exclusive) is in-plant inspected by Underwriters Laboratories. UL, an independent, third party inspection and testing lab, then certifies every product Columbia ships to be in full compliance with the ANSI-A17.1, "Elevator & Escalator Safety Code (Section 204 for cabs; section 110 for entrances). Columbia has made an uncommon capital investment in numerically controlled machinery for "consistency in quality" resulting in "repeatability," accuracy, speed (shorter lead times) and consequent dollar savings for our customers.