I put together houses in Mexico a couple of times a month for a charity (corazon). We frame the walls with 2x4's on the ground, frame where the windows are going to go, and then put OSB (like plywood) over the whole thing. Then we tilt the wall up, and put nails through the corners where the window's going to go - from the inside to the outside - to mark the window corners. Then we lower it down, snap lines to the holes, and cut out the OSB. The problem is that the nails are angled - so the holes aren't exactly in the right place. I was thinking of using something like a scratch awl instead of nails. But the shaft would need to be at least 4" long to clear the
2x4 and the OSB. And metal so I could hammer on it. Any ideas where I could find an awl like that, or alternatives?Thanks, Bob