You can get away with this using wall studs as well. I was skeptical, but I put up 2 racks, one with 6 hooks and one with 4, in my living room. They're mounted horizontally just like the ones in the OP. I thought for sure the hooks would twist downward and torque themselves out of the wood, but they're holding up just fine. Now if I can only get my roommates to wrap their heads around the "1 up, 1 down" concept...