I have many Gladiator products so when I needed another storage rack I went with this rack.  Heavy duty is right!  I have never seen such well build shelving units.  The unit went together easy without tools.  Took me no time at all to put this together.  While they say this rack holds 8,000 pounds and I believe them, I don't have that kind of weight on them. The design matches the rest of the other products I own so it looks right at home in my garage.  I the these shelves and would by again without thinking twice.