Amateur carpenters who have laid out the cuts in a stair stringer (the zig-zag structural support for the steps) know the queasy feeling that bubbles up at the prospect of this job. There’s the simple ...

Q:What should I do with the large landing at the top of the stairs in our condo? I thought of putting in a sleeper sofa and making it a guest “room,” but it's in the middle of all the upstairs hallway ...