Need some help from somebody that has done something similar. I have an all steel 20 x 60 ft covered pole barn that I would like to enclose and convert to storage, a workshop/garage, and a utility room. I plan to pour a slab, close in the outside with steel purlins and metal R-panels. Where I get stuck is how do you go about partitioning the different sections and would it be most practical to build an inner frame from wood so a ceiling and partition walls can be added? It is about 12' to existing steel trusses and plan to drop the ceiling to about 9'. Any suggestions or pictures would be really helpful. I can do the steel work, but unsure about how to tie to the wood frame, if that is the practical thing to do. Thanks in advance !!