Attach Stairs to Lower Deck

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Posted by: from Brecksville
3/20/2020 at 8:10:50 PM


I am building a deck and have questions about connecting stairs going from the upper deck to the lower one at grade level.

Stair rise x run: 10'10" x ~13'

Can I connect the bottom stringers to the decking boards? Or should I have support posts set in concrete footing coming up through the decking boards?

Same question for the vertical support posts set in the middle of the stair run...

Let me know if you have any questions/need images.

Can't upload pdfs here


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Date/Time3/21/2020 at 1:36:35 AM


You can. Be sure you plan supports that will run under the location where the final step will sit on the lower deck. You will need posts in concrete on both sides. Then run 3 2x8 stringers under the planned bottom step.

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Date/Time3/21/2020 at 11:40:37 PM

The Code doesn't say much about deck construction that would answer your question (meaning it would be permitted). One thing though is there is a requirement for guard/hand railings and pickets to resist specified forces but again the Code is not specific about how to accomplish.

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John in Brecksville
Date/Time3/22/2020 at 1:42:35 PM

Thanks for the feedback.

James, so what you're saying is I can connec the stringers and the mid-run support posts to the deck itself? I just have to make sure there are concrete footers below the deck supporting those points of contact for the stairs?

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Date/Time3/22/2020 at 2:45:25 PM

Hi John....

Basically, as long as there is continuous structure from the ground up, either way is fine.

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