We have a 22' Argy with dinette up front and we just leave it up all the time with no problems. We have a gaucho on the curb side which converts to a table with holes in the floor just like yours. We store the table top under the gaucho foam cushions. There are holes in the plywood that allow the post holes in the bracket below the table to go through the plywood so that it lies flat and the cushions are placed on top for a nice snug fit. The tabletop also serves as a bed, using the shorter posts, it will convert to about the same size bed as our dinette. We hardly ever put that table up, since we have the dinette. We use the dinette for our bed and put a 4" feather topper on to help cushion the foam.
Jim & Cheryl
2005 28' CCD
2013 Ford F-150 Crew Cab 4x4, 6.5' bed, 3.5L EcoBoost, 3.73 rear axle, Max Tow Pkg
Honda 3000 genset