Can I install base mount for a table ?

I put a table base in our 172 and it worked really well.  I used 3/4" coarse threaded screws with heads that fit the base.  I think they were #12, but I did it back in 2017, so I don't recall for certain.  Be sure to keep the screws short enough so that you don't penetrate the exterior side of the floor.  Longer screws don't really help much because once you are past the plywood surface, you're into styrofoam that has almost zero withdrawal resistance.

I was going to say, well that's another way to skin a cat, but since you feed barn cats on your old table, maybe it might not be PC.    Sounds like a good solution.

I don't have a photo, and my 80 yr old brain may not be able to get it from a cell phone to this  computer.  But I got a pedestal and 2 floor socket mounts from a boat store - they use them to install pedestal seats.  With two pieces of 3/4 ply it makes the table around 29" from the floor.  top is about 2 ft square and bottom is about 18".  Table is wiggly if you have to push down on it to stand up, so just use your thigh muscles.  Works great. 3 or 4 can eat - think camping, not glamping.  Make the top any size you want.I made ours rectangular not square, with rounded edges and melamine on  top. Stores on the bed along with the folding chairs etc for travel.

Thanks John - so many creative ideas here.

That is to stabilize the table, so I don't have to use 2 stand pipes