The Monarch Z Clip testing performed by Qualtim, a third-party testing laboratory, was performed using the following installation. The tests were designed to assess the load-bearing capacity in installing a 1200mm x 2500mm MDF panel vertically in shear. To install a 19mm Thick, 1200mm Wide x 2500mm Tall MDF panel, you would mount three different continuous lengths along the wall parallel to the ground approximately 750mm apart. These should be fastened to studs at a minimum of every 400mm on center with the appropriate screw. 

Our testing was done with 22 Gauge Metal Studs and Wood Studs and the results would not apply to weaker substrates. Installers often use 19mm blocking in front of the wall to allow for added fasteners every 200mm on center along the wall. Along the panel, installers would typically use 12-panel clips on the back of the panel; 4-panel clips at each height to interlock with each of the 3 continuous lengths. These clips would be spaced 300-400mm apart and fastened to the back of the panel with (2) #8x 19,05mm Pan Head Deep Thread Screws for a total of 24 screws in a typical panel installation.