Too many of these bars say 24 inches, or 12 inches, etc, but they are a few inches shy because there is 1-1.5 inches on each side that isn't magnetic where the screws go in. These are a full 24 inches. They may be a bit uglier because of where the screws go, but I need these to save space and maximize storage. I have a small shed and I used these on my ceiling hanging crescent wrenches, vice grips, chisels, etc. Very strong, nothing ever drops on my head. Love them.