Please pre-drill pilot holes. Assembly should not require a furniture workshop. The leg caps had to be assembled on the front bar legs and it would have made much more sense to NOT have them pre-attached on the back legs, as well, so that the base screws could be drilled straight.  And, they were drilled in so tight that they couldn't be removed. As it was, it was difficult to get a straight angle on the back screws due to the cap overhang. Perhaps some lessons from Ikea are in order regarding instructions and assembly.  This sofa is a poor example of what "made in America" should mean.