I am going to build a garage (stick-built with 195 mm wall studs). After several considerations, I have determined that scissor trusses are the most suitable choice in my case. I also want to have a cross-traverse beam suspended from two longitudinal beams hanging from the trusses. The truss supplier found a solution where each truss could be loaded with 150 kg 1 meter out from the center.
Upon reflection, that's not much since the traverse itself and a certain length of the beam need to be included in this weight. I want to be able to lift at least 150 kg!
So my question is how should I think/calculate? Can the weight be distributed because the beam has a certain stiffness in itself?? Should the beam be self-supporting all the way, how large should the longitudinal beams be then??
The garage is 7.2 m wide and 7.8 m long (external).