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Do stringers(for a deck) have to be secured @ the bottom??? - Printable Version

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Do stringers(for a deck) have to be secured @ the bottom??? - Dumb_Polack - 09-02-2020

Somewhat of a f/u to my stair splaying thread from earlier..

The deck is approx 4 ft off the ground and stringer runs will be close to 12".  Can I secure them to the deck and let them rest on a pad at the bottom, or so I need to attach them to the pad as well?

I think I do, but I checked our basement steps (which do down a full floor) and they're not secured to the floor. 

I would feel better pouring a pad, putting in some lag bolts and then securing the stringers (via a 2x4 notched into each stringer) to the pad, but is it necessary?  The deck's in CT, if that matters.

(In any event, the stringers will be secured to each other via the 2x4 I'll notch in)


RE: Do stringers(for a deck) have to be secured @ the bottom??? - George A - 09-02-2020

(09-02-2020, 12:33 PM)Dumb_Polack Wrote: Somewhat of a f/u to my stair splaying thread from earlier..

The deck is approx 4 ft off the ground and stringer runs will be close to 12".  Can I secure them to the deck and let them rest on a pad at the bottom, or so I need to attach them to the pad as well?

I think I do, but I checked our basement steps (which do down a full floor) and they're not secured to the floor. 

I would feel better pouring a pad, putting in some lag bolts and then securing the stringers (via a 2x4 notched into each stringer) to the pad, but is it necessary?  The deck's in CT, if that matters.

(In any event, the stringers will be secured to each other via the 2x4 I'll notch in)

By me (in the Chicago burbs) as long as the stairs go straight with no landings, turns, etc., you do not need to fasten them at the bottom.  I would at minimum set some pavers at the bottom to land them on.  Are they coming down close to a wall / the house, or sticking out in the middle.  If sticking out, then I probably would anchor them.


RE: Do stringers(for a deck) have to be secured @ the bottom??? - joe1086 - 09-02-2020

Going through this now. Our county (in MD) requires that steps are lag bolted on two "mini" footers a minimum 12"x12"x12". I went ahead and dug them 30" deep. Might want to check your county codes.

I think having them anchored and bolted should make the lower rail posts much more secure. That's assuming you are installing handrails at that height.


RE: Do stringers(for a deck) have to be secured @ the bottom??? - Snipe Hunter - 09-02-2020

(09-02-2020, 01:38 PM)joe1086 Wrote: Going through this now. Our county (in MD) requires that steps are lag bolted on two "mini" footers a minimum 12"x12"x12". I went ahead and dug them 30" deep. Might want to check your county codes.

I think having them anchored and bolted should make the lower rail posts much more secure. That's assuming you are installing handrails at that height.

I didn't know that. Learn something new every day.

I usually pour a 4" pad with a slight pitch to it to shed water.