Quote Originally Posted by Barton
Actually, standard floor joists in a residential and especially in a commercial structure have an extremely large support potential. When they are designed the weight of the type of floor is figured in and a large allowance for furniture and people load is also calculated. After the engineers come up with an average weight they design a joist that is able to withstand that load plus 20% to 30% more in total weight. The same is true with a roof truss.
You are not likely to pull your house down on top of you. If you install the hooks properly there should be no problen.

Barton.
It is not just the proper instalatine of he hooks, but the hooks that you install. The use of a U bolt or a I hook, won't do if you want to suport more than 20lbs and I don't believe any sub or slave is les than 20lbs becouse it also has to suport the weight of the equipment as well. And if you don't want it to come down on your head you have to have several mounts, and all have to be able to support the hole weight and that does meen every suport has to beable to suport every lb of the lode not just part of the weight, Adn for that you cna't juxt slap or nale , or scrue something though the dry wall but fasen it to the beam, joise, or stud. Having a suport stucture is only on of the things you need . The Stockroom in Cal, has the proper hard ware needed in on there web cadalog, and you can find the same things in any home store, as well. but you can't just fassen a single I bolt into the cealing, or wal and thats it. Not safe.