Also depends on which deck you have. The single doesn't have very big holes in the posts. I think the biggest I've been able to get in there was a twisted 28g. It will take single 22g. The dual deck will take bigger because you can just put the wire under the screws, but I tried to get a dual twisted 22g in there the other day and they wouldn't fit, didn't leave enough space for the screw to start. I haven't used the clapton or triple deck. I am going to try drilling the holes out on my single with a 1/16" bit so I can get some decent sized builds in it.