The 2' sections of mounting brackets simplify the positioning and installation of wall cabinets by temporarily holding the cabinets in place for you. This system allows you to use brackets to position up to 8' or up to 26' (depending on which option you purchase) of wall cabinets until you can permanently mount them to wall studs. First, mount the steel wall channels to ensure level installation. Next, attach temporary hanging brackets to your cabinets. Then hook the cabinets in place flush against the wall. Adjust and align the cabinets until you've found the exact positioning you want to mount them in permanently, and then you can attach them to the wall studs with ease.