One slatwall website I was looking at listed the single point limit for fiberboard slatwall at 20lbs. I intend to put it into my garage since it's so much cheaper than the Gladiator stuff. I just figured I'd use more hooks to hang each item. Because it's fiberboard, it's certainly not good in wet environments.
It seems like the metal inserts you can put into retail slatwall would spread the load across more surface area and increase the load rating, too.
Tone's garage is very, very nice. His is the one that got me looking at slatwall in the first place. Tone, have you had any issues with the slatwall breaking under too much weight?