For casings, 50 percent is good. generally, vertical trim elements such as door and window casings should be smaller and have less heft than baseboards. so i�ve found that a good rule of thumb for sizing window and door casings is to keep them at about 50 percent of the height of the baseboard.. Window trim and casing first, cut a rough length of stool (length = outside width of the window + 1-1/2 inches + at least 2 x casing width). hold the stool in place, centered on the window, and mark the inside dimensions of the window jamb on the stool. next, close the lower sash. measure from the sash to the edge of the stool at each side. I am finishing windows in need of casing and window (sill) stool. however, the wood molding around the window is not flush with the sheetrock. the wood frame/molding protrudes by 1/2 to 1/4 inch all around the frame..
Remove window stool: if the existing window stool doesn�t extend past the drywall on each side by the width of the new wood casing plus 1/2�, remove it and the apron molding under it by cutting through the caulking with a utility knife, then using a pry bar and hammer to take it out.. Shop casing window & door moulding in the window & door trim section of lowes.com. find quality window & door moulding online or in store. multiple sizes (8) 12-pack x 7-ft interior pine primed finger joint window and door casing enter your location. for pricing and availability. ok. Door & window trim / casing overhaul help we've worked our way through most of the downstairs, and now it's time for me to move on to the door and window trim. my walls are 8' high, except for the living room which has a high vaulted ceiling (18' wedge shape)..
