Securing table top
Ok so i'm going to do my best to try and describe this w/o pictures.
I'm building a table w/ a stone mosiac top, wrapped in a mitered 3'' wood boarder. I used thinset to secure the tiles to 1/4'' wonderboard, which sits on top of 3/4'' mdf to keep it from flexing. I'm also running boards under the mdf for extra protection, which will fasten to the skirt.
The stone/wonderboard/mdf combo weighs at least 70 lbs. I'm cutting a rabbit in the boarder and the skirt, so there is a C channel that the wonderboard/mdf will fit inside. The boarder will sit flush w/ the top of the tile.
My question is that after cutting the rabbit in the skirt and boarder, there isn't enough "meat" left for me to run a screw up through the bottom of the skirt into the top.
I need the top to be fairly secured incase anyone decides to lift it by the edge or knock into it. I'm pretty sure just gluing the boarder onto the skirt and legs wouldn't be strong enough. I hope i got the picture across, any ideas?