I'm in the process of installing corbel supports for my island/bar seating area. My studs are 16" apart center on center. I had this local metal shop fabricate me some L backets out of 1/4" thick 2" flatbar 11 x 11. I have a bunch, but I'm not sure how many to install. I noticed that federal braces recommend supports ever 18", but I feel like thats over kill. I'm trying to decide if I should install one more support on each end and call it good. I don't want to install a support on the last stud because it will make my rock veneer hard to install.
If I install one more support on the 2nd to last stud I'll have a span of 23" to the end of the counter top which has a 12" overhang. Do you think that will be alright? Thanks for the advice.