prodigy2k7 said:
Santa fe, i dont think i can create that table you did...how did you create those puzzle piece ends ? the fingers that lock together lol...
This is called a dovetail joint. I used no power tools to make it, though some people do (that's cheating). You mark it out carefully, use a fine-toothed wood saw to do the rough cuts, then cut out the rest with a chisel. It is a bit more time consuming, and requires a steady hand, but the result is a very strong joint that requires no fastener hardware. It was invented before the age of screws, nails, and even glue. If glued, it is stronger than the wood itself.
But - if you want something easy, I would suggest perhaps a piece of angled aluminum on the inside of the corner, like 1/8" thick with 1" to 1 1/2" flanges. You can bolt through that to get a pretty strong result.
Jim Krause said:
By "wood" are you referring to the plywood table top? If so, you can use what are called wallboard screws.
Jim - With all due respect, wallboard screws are for wallboard. Wood screws are for wood. I would never recommend using wallboard screws for wood. The shape is different, the application is wrong, and the result is not as strong. I'd recommend using wood screws here, with either a phillips pan head or even a hex head, with a nice wide washer underneath, so that you can tighten it up well without crushing the wood. You'd probably want #10 or #12 size wood screws, with at least 1" penetrating the wood frame.
For this application, which as I understand it is to attach the plywood to the frame, you should drill a hole through just the plywood that is larger than the screw threads, so that the screw would slip easily through the hole in the plywood. Then make a smaller pilot hole in the wood frame. Assuming it is a softwood like pine, err on the small side. If you use this technique, the wood screw will be holding the plywood to the wood frame, without making threads in the plywood. Does that make sense?
Also - in general, a glued joint will hold better than any fasteners (screws, nails, etc). Screws, however, are useful for holding the joint tightly while the glue dries, and once in there, you may as well leave them.
I apologize in advance if this is too wood-techie. One of my other hobbies is woodworking, so I tend to get into that stuff. Just trying to put some good woodworking techniques out there. That said, it is possible to build a suitable table by just banging stuff together, too.

It's just not my style.