I need to replace an internal bedroom door. It is the 6 panel white type. The problem is the door is somewhat narrower than standard. The existing door is 27 3/4" wide as opposed to 30", I can find a narrow door in B&Q (special order) but that is only 27" wide. I would need to trim 1 1/8" off of both edges to keep it all symetrical. Does anybody know how much can be trimmed from each edge in order to keep some 'meat' there for the hinge screws to bite into. Also what is the best way to acheive this without chipping/tearing the finished faces. I have a selection of tools i.e 1/2" router, circular saw, jigsaw etc. I would assume the router and a straight edge is the best but would the router cause any damage to the white surfaces?
TIA
John