Angle Bracket - Building Hardware And Stair Assembly
If we didn't attach the stringers to the base or
concrete foundation, there's a chance that the stairway would fall down
in the future.
Obviously, I can't recommend what type of building hardware or angle bracket to use for your specific project, but I can suggest that you avoid trying to save money when making your decision.
Make sure that you get a heavy-duty anchor or angle bracket and use the correct bolts to attach the stair stringers to the concrete foundation.
Framing anchors like these might not be necessary when attaching a wooded stair stringer to a wood subfloor.
Stairs / Stair Glossary
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