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Josip
Basement Framing
Josip

Hi,

My basement ceiling is about 6'5" in hight and I will like to make it higher. Floor in a basement is cement slab so that is out of question to dig. What I had in mind was to add additional beams (2X6) to existing ceiling beams (2X8) and then trim 2" off of the old ones. That will give me additional 2". Is this possible to do or will this action compromise the structure of the house?

ed21
Re: Basement Framing
ed21

DB and I are on the same page today. An engineer or architect needs to evaluate either scenario.
I think taking out the slab & lowering the floor would make more sense and you should be able to gain more than 2" of headroom. Depending on how the pour at the footing is configured and how much you can stand to loose on the length & width of the basement, you could go down quite a bit. Of course the existing stair run may not work anymore.
The house could also be raised and another 2 or 3 courses of block added. That was a solution for a house in a flood plain I worked on that needed to be raised to accommodate an addition that had to be above the specified elevation. (5 years later the owner was happy as a clam when a tropical storm and a flood tide brought the water to within about 16" of the joists. Well above the original floor.)
On the other hand, all that work for 2" hardly seems worth it, that is unless you are 6'-6" :)

AlanHaisley
Re: Basement Framing
AlanHaisley

There may also be building code issues. Where I live an 8' poured basement needs heavier footings and walls by code than a 7' basement. What you want to do may not even be allowed by the building code where you live.

Or code requirements may effect which approach you can use.

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