Removing a lally column
I’ve got a single story house with a basement. The main floor is supported down the center by a 3×7 inch steel I-beam which sits atop 3″ steel columns on 8 foot centers. I’d like to remove one of the columns to make room for a pool table and I’d prefer not to have the floor cave in.
I’m thinking of sistering a second 16 foot I beam between the remaining columns or perhaps just reinforcing the vertical web of the existing beam by welding a 1/4″ x 6″ plate along that span.
Is this do-able or should I just buy a smaller pool table?
You will need to a pull a permit for that work and you will no doubt need to have an engineer design and/or seal the beam.
To do guess at what you think might work would be idiotic at best in this instance.
Spend the bucks and be safe.