What wall thicknesses can be built with Quad-Lock?
Concrete thicknesses of 3¾”, 5¾”, 7¾”, 9¾” and 11¾” [96, 146, 197, 248 and 299mm] can be built using standard Quad-Lock components. The resulting overall wall widths are 8¼”, 10¼”, 12¼”, 14¼” and 16¼” [210, 260, 311, 362 and 413mm]. Walls of greater width can be built by fastening Quad-Lock ties together. • How do I determine what size Quad-Lock wall to build? This is a decision to be made by your local building department, designer, or engineer. The local building department may allow you to follow pre-approved prescriptive designs, such as the International Residential Code (IRC). See Guide to Code Compliance. • Do local building departments accept Quad-Lock? While final approval is up to the local building official, Quad-Lock has undergone evaluations from the major code agencies in the USA (ICC), Canada (CCMC) and elsewhere which are often recognized by local officials. Quad-Lock forms solid, flat, monolithic concrete walls, and, therefore, can emulate prescriptive designs that are