Deck repair and replacement

So I bought a house a year ago and found the deck was painted in a way that locked moisture in. This led to a bunch of wood rot on the stairs and deck boards. Due to limited funds I'm on the DIY track but have questions about the project. I'm clearing the rotten wood, cleaning and treating whats salvageable, and replacing what was removed. Then adding under deck drainage while I'm under there. I want to replace the deck boards with composite, but the joists are 16" apart. Will this cause warping and sagging of the deck boards? Ive heard it can warp with heat and it gets fairly hot here in the lower midwest. I submitted by /u/inthecaranextra20min [link] [comments]

Jun 10, 2025 - 16:44

So I bought a house a year ago and found the deck was painted in a way that locked moisture in. This led to a bunch of wood rot on the stairs and deck boards. Due to limited funds I'm on the DIY track but have questions about the project. I'm clearing the rotten wood, cleaning and treating whats salvageable, and replacing what was removed. Then adding under deck drainage while I'm under there.

I want to replace the deck boards with composite, but the joists are 16" apart. Will this cause warping and sagging of the deck boards? Ive heard it can warp with heat and it gets fairly hot here in the lower midwest.

submitted by /u/inthecaranextra20min
[link] [comments]