Hi guys. I've got a project on the radar, and I could use some advice. My parents have a old wood siding garage, pretty basic design. It's got two people-sized doors in the back, one of which needs to boarded up. They have all the tools that could be needed, but skill is lacking. Dad used to be fully capable, but early dementia has taken its toll. He'll be helping out but I can't rely on him for how to do things or to fully develop a plan. I have limited experience, but I think I can manage as long as I have a plan.
So, I need to remove the threshold, framing, and fill in the opening somehow. I'll then be painting the exterior to match the rest of the garage. The outside of the garage is horizontal wood siding.
I can remove the door, threshold, and framing I think. To fill the opening, I was thinking of screwing in a large piece of plywood (to the studs next to it) and then putting siding over it. Would that work? Is there a better way? Also, what do I do about the edges on the outside? This isn't particularly visible, but I don't want to leave a raw 1/4 inch gap all around. Do I use caulk to fill it in?
Please help me get this to a workable plan. Thanks in advance