Expert DIYer April Wilkerson builds stairs the easy DIY way with simple, step-by-step instructions for safe results.

I feel it’s important for you to understand the structure of a set of stairs before you get out your saw and framing square.

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 ...