Thanks all in advance!!!
Hello - I am installing a deck railing system for someone who is very
particular. Their existing deck does not have a proper railing system. This
customer is very particular about where posts should go, how they line up
with other posts, etc. All should be good except one post at the bottom of
the stairs. There is no way to attach it to the stringer and have it line up
with the railing at the top of the stairs. I do not think that scabbing on
about 4 inches of material to the stringer would be suitable or stable
My only solution, I think, is to set the post, at the bottom of the stairs,
on top of a concrete footer. OK - frost line is published as 48". Do I
really need to worry about frost line for such a situation? I would like to
just put in the footer and then attach a post anchor to the top of it once
the concrete cures enough. (Helps with alignment). The footing needs to be
square, don't ask, so sonotubes are out, which is fine with me. I was
thinking I would dig about an 8" diameter hole and set a form for the
required shape at the top. Question is, how deep? The area is very rocky and
wooded. I expect to bottom out on a boulder or major tree root pretty
Would 18 - 24" deep by 8-12" diameter concrete base be sufficient for a base
for a short post to hold one end of a handrail when frost line is said to be
How are posts at the bottom of stairs usually handled? Are they attached to
stringers or set on/in concrete?
If I were to use blocking to allow the post to attach to the stringer do you
think this would be sufficient? Bolt through most likely, I would assume.
Some more details.
Material is Mahogany
Balusters are Dekarator aluminum
posts are 4x4 half lapped over rim joist attached with carriage bolts,
outside corners 1/4 lapped attached with lag screws.