I have just been given 4 small marble slabs, they are 600mm – 23″ . 5 / 8″ x 300mm – 11″ . 3/4 …..First thought was some small tables, but they are narrow, and I’m wondering if the would be easily knocked over with such a small footprint. Not keen on having to splay the legs. I forgot to say they are 22mm – 7/8″ thick
I would put two into one table top side by side. It would be nearly square. You could use them like tiles and set them in a frame with grout between them. This would also provide strength and support for the marble.
If pairing the slabs up for a single table top I’d consider adding them as inserts bedded on a 1/2″ thick ply base plate within a rebated top frame. Adding a dividing strip will make the resulting joint between the tiles appear deliberate while concealing minor chips and edge flaws in the stone. You could opt for a contrasting grout, but I think I’d consider charcoal or black grout for this colour tile.