Schaefer Systems International, Inc. Charlotte, NC 28,000 SF Injection Building Addition Additional manufacturing space for the injection molding of large plastic items, most notably municipal roll-out garbage cans. The original existing facility was designed by L. B. Smith in 1991. This project provides nearly 37 feet of clear height and two (2) 65 foot clear span crane bays for 35 ton overhead cranes. Also, included are accessory and auxiliary spaces for mechanical and electrical support equipment with two (2) separate electrical switchboards of 4000A and 5000A.