Tom in Oxford

02:26PM | 04/03/01
Member Since: 04/02/01
1 lifetime posts
Looking for some advice/guidance on the following:

I have a deck attached to my house that I would like to turn into a sunroom. The deck is standing on treated 4 x 4 posts. What I'm thinking is taking the deck down to the support beams and building from there. Of course, I'll have to tie into the roofline and joists as well. The questions that come to mind are:

How well suited are the posts for supporting the load?
How long can I expect them to last, or how can their life be extended?
How deep should they be to help prevent settling, heaving, etc...?
If the posts are not suited for doing this, then what can be substituted? Building another foundation is not feasible as the ground severly slopes away from the house, and the deck stands around 5-6' tall 12' from the house.

Thanks for the help!

[This message has been edited by Tom in Oxford (edited April 03, 2001).]

Peter Lothian

06:24PM | 04/15/01
Member Since: 04/14/01
8 lifetime posts
Are the support beams on concrete piers? It sounds to me that you would need sizable piers at a minimum to support a sunroom. I suggest that a structural engineer would be worth consulting on this one. I work in an office near a couple of them, so I get to hear some of their conversations with contractors and homeowners. It sounds to me that you could wind up with some expensive repairs if you build without adequate support. Cheap insurance for the $200 that a 2 hour consultation and calculation session might cost.


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