I'm going to be papering my sitting room shortly. I have gas central heating and besides the trunking running around the skirting boards (just above it for gas pipes and electric cables), I also have two pieces of trunking (one piece once inch wide and the other 3 inches wide) running down one wall from the ceiling to the skirting. Do I just paper up to the edges of these two pieces of trunking (it is a floral, patterned wallpaper), or can they be removed/loosened so that the paper can tuck away underneath the trunking to get a nicer edge, and then stuck/screwed back down again? As regards the trunking just above the skirting boards, I'm not too sure how this has been stuck down - can this be loosened as well, paper tucked underneath and then put back? All of the trunking is white, but is it able to be painted - only asking as the wallpaper is going to be mainly grey and black (a small amount of white) - thought it might blend in a bit better then? I'm assuming that people do not actually paper over trunking that runs down from the ceiling to the skirting boards? Thank you.