We have vertical T1-11 siding on our 1972 home. I don't know if it's original or not, as we purchased home in 2007. We have dry rot at the bottom and have been unable to find replacement siding the same width. Each panel is 10.5" wide with about a 2" wide recessed strip between, and all of the new stuff is 8" wide with about 1/2" recess between. We saw someone's suggestion for trim board, since it's just the bottom but I think that would look ugly since the siding is vertical not horizontal. My husband has thought maybe taking the doors off of the shed and using them to replace the bad stuff. Anyone have a suggestion where we can buy recycled product to match in Portland Oregon. We've checked several places but it's too hot to go running around looking right now. I took pictures but cannot find the cable to download...sigh.