For ambitious DIYers, deck stairs are a natural next project after building a stylish floating wood deck. Or perhaps your old stairs have worn out from years of exposure to the sun, moisture, and use.

Deck stairs look simple until you cut your first stringer wrong. I have done that, and one bad cut can waste a whole board. Building deck stairs is one of the most useful DIY projects you can take on.

I read your recent column about building stairs for a deck. I can handle that, but I’m worried about how to make all the complex cuts required for the deck stair railing. Can you give me a few ...

DEAR TIM: I read your recent column about building stairs for a deck. I can handle that, but I’m worried about how to make all the complex cuts required for the deck stair railing. Can you give me a ...