Ideas for attaching items under the RV
I would like to install a couple vinyl fence post tubes and a ladder underneath of RV. I would prefer not drilling holes in the frame. But I can't think of a method that would not involve drillin...
Forum Discussion
Brokentone wrote:This is good practice. If you look at Al air aircraft structural frames this is were lightning holes are put in to save weight. In either an I beam or C section the caps(top and bottom) carry the majority of the load. Another good practice for drilled holes is that they should be twice the hole dia from the edge(2D) for bearing strength.
When I worked with heavy trucks we never drilled holes in the top or bottom of the frame, only in the web between.
Bob
