All listed dimensions are center-to-center lengths. Overall lengths are plus 2 3/4". Grab Bars are tested to comply with load bearing criteria as required by the Americans with Disabilities Act (ADA) and ASTMF-446. We recommend that these products be installed by a professional contractor to ensure compliance of proper mounting. Click here for the rest of the 870 Series! Click here for the rest of the 880 Series! Click here for the rest of the 1030 Series! Click here for the rest of the 1070 Series! Click here for the rest of the 1080 Series! Click here for the rest of the 1090 Series!