Thing about old folding tables is, the tops (which are usually made of cheap particle board) tend to wear out much faster than the legs (which are usually made of steel). So the world is full of old folding tables with mutilated tops and perfectly serviceable legs. If you know where to look, good-looking hollow-core doors can be had for a song, and make for great replacement tabletops for those old folding legs if you know how to mount them correctly. Here’s how I did it, using XRS Molly bolts with expanding adhesive foam blown in for reinforcement.