Door Installation Washington Dc for DummiesStep 11Attach the trim, Nail the trim to the door framework with No. Door Installation Washington DC. 4 surface nails. Nail the trim to the mounting with No. 6 surface nails. In this write-up, we'll concentrate on mounting typical prehung doors. These have a door jamb that's 4-9/16 in. broad and are made to match a 2x4 wall that's 4-1/2 in. Door Installation Washington DC.This gives just enough of a fudge element to have the jamb a bit pleased with the…See More