My neighbor bid on and won a train derailment of lumber!!! Can you imagine! It took a while to sort, move and stack it, but it's now here and he's selling some. So, my wonderful brother built me a picnic table yesterday, and cut the pieces for a second one. My question is about painting. He says "Paint 'em barn red, and quick". I need to borrow a sander first and do the seats and tabletop. Do I paint the underside too? I vaguely remember painting a table years ago that blistered something awful. What type of paint do I ask for at the hardware store? Anything else I should know? Thanks in advance!