Deck or 2x boards for stairs ?

2X.

Few pennies difference for thicker and more sturdy benefit.

2x only for stairs. Oh, and if building your own and using pressure treated 2 x 12 for the stringers, also use 2 x 12's for the treads as it will cover the cut ends of the riser much better than just using 3 cut pieces of 2 x 4's for the stairs.

Using a full 2 x 12 will cover the cuts and keep water from penetrating the wood causing it to rot faster.

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Side note- modern treated wood sucks.

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Totally agree, but unless going with concrete or welded and painted steel stairs, what other option is there?????


I'm in need to replace my back stairs that I built less than 10 years ago with treated lumber since the stringers are getting rotten in spots.