I'm coming back to this, as I'm going to be doing it this weekend.
I considered a metal door, but I don't think that's in the current budget. And for the length of time I hope to stay in this house, I'd only have to replace the door maybe once, hopefully.
So, the construction aspect. The foundation is standard concrete block, and the current door is (probably) 1/2" ply backed with an unknown dimensional wood (1x4 seems likely).
I'd like this door to no longer be the weak link in keeping the crawl space free of bugs and cold air. While I'm not expecting an airtight seal, I'd like to get as close as possible. The opening already has a 2x6 wood frame, and except for one little bit where the hinges are mounted, looks to be in great shape. I don't need to replace it, except for that one side.
Two final questions, and I can build this thing:
1) is there a mathematical formula I can use to determine how much of an offset from the frame I need to be able to open/close it on a pivot without striking the frame? I think I can do this myself on paper, but if there's an online calculator or something I can double-check, that would be great.
2) what hinges should I use? Piano, Tee, strap?
OK, I may have answered my own question concerning #1.
If I have my wits about me, I need to calculate something like this:
Door dimensions - h*w*d = 54*37*5 (2x4 + 2 pieces of 3/4" ply) Looking at the door from the top, my door's c length (the distance from the pivot corner to the opposite corner - the hypotenuse) can be no bigger that the width of the opening. So if my width across the opening is 37", then my c length must default to 37" as well. Using Pythagorean theorem, my formula becomes a^2 (the new, unknown width of the door)+5^2 (depth)= 37^2. My door width is now 36.66", and I'll need to get weatherstripping to cover that 1/3 gap on the front side. Yes?
Last edited by Cochese; 02-11-2010 at 09:54 AM.