Stair stringer cracked, how to proceed

My old stair tread was coming apart so I decided to replace it with a new tread. When I popped off the old tread, I understood why the old stair came apart. Pic 1 shows the stair framing in its entirety. Pics 2 and 3 show the issue. The stinger has been split along the grain by some nails from the exterior. Over the years as the wood has dried the top of the stringer- where the tread was nailed on- has also split. Question 1- came I just sister in few of the scraps of my old tread (3/4 thick oak) with deck screws? Question 2- can I sister a nailer on the right stringer? The area for nailing is pretty small and would not be going into the meat of wood. submitted by /u/MalformedGreaser [link] [comments]

Apr 24, 2025 - 14:33
 0

My old stair tread was coming apart so I decided to replace it with a new tread. When I popped off the old tread, I understood why the old stair came apart.

Pic 1 shows the stair framing in its entirety. Pics 2 and 3 show the issue. The stinger has been split along the grain by some nails from the exterior. Over the years as the wood has dried the top of the stringer- where the tread was nailed on- has also split.

Question 1- came I just sister in few of the scraps of my old tread (3/4 thick oak) with deck screws?

Question 2- can I sister a nailer on the right stringer? The area for nailing is pretty small and would not be going into the meat of wood.

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