Modifying structure

Question from Lonnie: Hi, I have a camp that has a addition attached to a 1965 trailer. I want to take out the wall that divides the 2. The wall had a window and door in it where as they had removed the window and left the opening on 1 side of the wall and the door opening on the opposite side of the wall. There is just a small attic space above where the addition and trailer connect and the floor is connected by 2x12's and attached tp the steel trailer frame. Would I be able to nail a 2x12x12'to the studs then a 1/2" plywood over that and another 2x12x12' over that on both sides of the wall and then run 2x12's on the ends for bracing the self made beam, then remove the rest of the wall? Thanks, Lonnie 

Jake’s Answer: Lonnie, Sorry, I can’t answer a structural question like this without more information. I would need to know the exact load from the attic and roof that is on the wall, what the wall is bearing on and how you would accommodate the new bearing points of the columns. I would also need to know the span of the wall. Even with that information I would still be reluctant without making a site visit. When we remove structural walls we always consult a structural engineer. I would suggest you do the same.