Hi ... I have a single storey 20 yrs. old home and want to make my picture window wider, it's now 7'... I want to make the opening 8'-6" ....... the walls are 2x6 and the header is 2 - 2x10's now under a load bearing wall. The problem in ripping out the complete header is getting into exterior soffit and fascia, as the 2' overhang drops down over the header and nailed into it. I was thinking of building a temp support for the ceiling inside, pull one of the 2 headers out splice in on both ends of header, use 1/2" plywood over that glued and screwed, install another 2x10 then another 1/2" plywood and finally another 2x10 making the header a total of 5-1/2" thick and rest on either 2 or 3 jacks on either side. I don't like the idea of splicing the outter header but would save a lot of work, but don't want to compromise the structure by doing so. What do you think, all replies would be appreciated. Thanks Ron.