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Old 08-10-2014, 03:05 PM   #1
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Stair stringer question


Hi.
We're redoing our tread and risers on our interior staircase. I encountered a broken notch on the right side stringer as I pulled up the tread. It's in the middle of a 13 step staircase. Can I just sister up a 1x4 to the broken part and the solid part of the stringer? Could I use a wood glue or epoxy to bind back to the stringer? Do I have to replace the stringer?

Thanks in advance,
Unhandyman

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Old 08-10-2014, 03:22 PM   #2
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Stair stringer question


If just the tip broke off, you should be fine. The grain often breaks there and it wont hurt the structural integrity.

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Old 08-10-2014, 04:03 PM   #3
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Stair stringer question


Not sure what you mean by the tip but it is a 6 1/4x 5 1/4 triangle. I tried to post a pic but for some reason am not allowed to.
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Old 08-10-2014, 04:44 PM   #4
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Stair stringer question


Quote:
Originally Posted by unhandyman1 View Post
Not sure what you mean by the tip but it is a 6 1/4x 5 1/4 triangle. I tried to post a pic but for some reason am not allowed to.
That triangle just broke off right with the grain, they often do even when we build them new. You can probably just glue and screw it back on. Use glue on your treads and risers when you re install and your good to go.
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Old 08-11-2014, 09:07 AM   #5
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Stair stringer question


I'd reinforce the whole stringer with 14x2x4, centering it. Then make a sister stringer that'll overlap 2 steps both ways and glue and screw (pre drill). This'll give you solid backer for the broken triangle. If the piece is against a stud wall, you can install the backer on the wall, but that may interfere with drywall.
Tread should be fixed to the sister stringer.
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Old 08-11-2014, 03:15 PM   #6
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Stair stringer question


I would give it a shot of pl premium construction adhesive and clamp or screw in place. Once that dries glue the treads down and you will be fine. Ron

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