Hi! My husband and I are newbies at pretty much all of this handyman/DIY stuff. We are trying to finish a bedroom. We want to put in a set of bifold closet doors. We measured the opening pre-trim, and it is 34 1/2" wide. The door widths we have seen are 24, 30, 32 and 36. If I am understanding right, we will have to buy solid-core 36" and shave some off? Or will the 32" be OK once the trim is all on? Please help!!!